Online Store

Excellent for use as patch cables or for instruments.

These traditional wood congas look good and sound good, too. The Club Series includes a 10" quinto and 11"
conga with stand. The Professional Series features Heavy-duty lug and hoop design. Professional conga heads
and optional 24 karat (5g) real gold hardware. All of our conga sets feature the same fine quality wood shells and
natural hid heads.
Note: replacement parts are in-stock and available upon request.

The 5-piece SLAM drumset is the same as the RADICAL except its offered with power toms for extra volume and deep sound. Double braced hardware. Set includes cymbals seat
and sticks. Drum Sizes: 14x22 bass drum w/12 lugs;
10x12 tom w/10 lugs; 11x13 tom w/10 lugs; 16x16 floor tom w/12 lugs and 6-1/2x 14 matching wood snare drum with 12 lugs.

The 5-piece Radical is perfect for the beginning drummer. Double braced hardware. Set includes cymbals, seat and sticks. Drum Sizes: 14x22
bass drum w/ 12 lugs; 8x12 tom w/10 lugs; 9x13 tom w/ 10lugs; 16x16
floor tom w/ 12 lugs; and 5x14 matching wood snare drum.

For Beginners
( 60 Pages)

Introduces the essential techniques used in today's drumming styles.Includes the basics of Rock,funk,Blues,Jazz,Metal and other popular styles.Contains valuable exercises for developing independence between all four limbs,along with a lesson on how to play in a band.

By Peter Gelling

Book/CD

This guitar is modeled after the classic 60's guitars. It is made with a modern
bridge and sis adjustable saddles that really improves the intonation.

• Solid Alder Body o Diecast Machine Heads
• One Piece Maple Neck
• Rosewood Fretboard
• Rosewood Neck Stripe
• 1 Lipstick Pickup
• Tone and Volume Controls
• 3 Position Pickup Selector

For Beginning Guitarists
(64 Pages)

Demonstrates all essential techniques and scales.Students will also learn all the important rhythms, along with note bending, slides, hammer-ons, pull-offs and right hand tapping.

By Gary Turner

Book/CD/DVD Bonus Pack

For Beginning Guitarists
(56 Pages)

Covers all the important bar chords along with two string Rock chords and other moveable chord shapes.Also teaches techniques such as slides,hammer-ons,pull-offs and string bending.

By Brett Duncan

Book/CD/DVD Bonus Pack

For Beginning Blues Guitarists
(56 Pages)

Introduces all essential scales and arpeggios, along with important rhythms and a system for analyzing what you play. Contains lots of great licks and solos and several Jam-along tracks.

By Peter Gelling

Book/CD

For Beginning Blues Guitarists
(56 Pages)

Covers Blues rhythm and lead guitar playing,involing open chords,bar chords and moveable lead patterns,together with classic blues triplet and shuffle rhythms.

By Brett Duncan

Book/CD/DVD

For Beginning Guitarists
(64 Pages)

10 Easy Lessons Bar Chords contains the most useful bar chord shapes for every type of chord. It includes major, minor, seventh, sixth, major seventh, minor seventh, suspended, ninth, etc. Also includes a section on reading sheet music, chord symbols and jam along progressions.

By Gary Turner

Book/CD/DVD Bonus Pack

An easy to use chord dictionary containing the most useful open, jazz and bar chord shapes of all the most commonly used chord types. Also includes special sections on tuning, reading sheet music, transposing and using a capo.

For Beginning Classical Guitarists
(60 Pages)

An easy and informative introduction to Classical guitar playing which is suitable for complete beginners. Introduces chords, scales, arpeggios and essential techniques for both hands. Includes pieces by Tarrega, Giuliani, Sor, Carcassi and Carulli.

Book/CD/DVD Bonus Pack
By Brett Duncan

Shure SM57 unidirectional dynamic microphone is exceptional for musical instrument pickup or for vocals. With its bright, clean sound and carefully contoured presence rise, the SM57 is ideal for live sound reinforcement and recording.

• Contoured frequency response for clean, instrumental reproduction and rich vocal pickup
• Professional-quality reproduction for drum, percussion, and instrument amplifier miking
• Uniform cardioid pickup pattern isolates the main sound source while reducing background noise
• Pneumatic shock-mount system cuts down handling noise
• Extremely durable under the heaviest use Frequency response: 40 to
15,000 Hz

The SM-58 is the world's most popular mic! It's known for its ability to take abuse, making at a great live application mic!

• Shimmering sound
• Cardioid design reduces background noise
• Includes mic clip and case
• Frequency Response is 50hZ-15kHz

Perfect for singers on the way up, the SM-48S has many of the features of the SM-58 at a very affordable price

• Cardioid pickup pattern rejects off-axis sound and provides superior gain before feedback
• Frequency response tailored for vocals, with brightened mid-range and bass rolloff to control
proximity effect
• Shock-mounted cartridge for exceptional ruggedness and reduced handling noise Built-in "pop"
filter that reduces explosive breath sounds and wind noise
• Lockable On/Off switch (SM48S only) Frequency response: 55 to 15,000 Hz

This specially designed amplifier has the range and power for bass or keyboard or both at the same time. It comes with a 4_band EQ with two sweepable mids. It also has two input channels with independent levels so you can n two keyboards, or a bass and a keyboard, etc.

• 60 watts RMS; 120 watt peak
• 12" Woofer and 2" Tweeter
• Two 1/4" Input Jacks with Independent Level Controls
• 4_Band EQ with Two Parametric Mids
• 1/4" Line Out Jack

Johnson bass amplifiers have the best low end reproduction in the practice amp market. These amps feature ported cabinets which make them sound larger than they actually are. We use a "real" RMS for our amps, which are louder than most amps with the same wattage rating.

• 20 watt RMS; 36 watts peak
• 8" Speaker
• 3 Band EQ
• Presence Control
• One 1/4" Input Jack
• One 1/4" Headphone Jack

Our 20 watt Digital Delay amplifier is packed with features. The
amplifier has two independent channels -one clean channel and one
overdrive. The amplifier has a 3-band EQ and presence control for
dialing in your sound. The delay has depth and length controls so you can get just little slapback or a long psychedelic loop.

• 20 watts RMS; 48.8 watts peak
• Independent Clean & Over drive Channels
• 8" Speaker
• 3-Band EQ
• Digital Delay with Depth & Length Control
• 1/4" Input Jack, & Headphone Jack
• 1/4" Effects Loop Jacks

All Johnson amplifiers are made from the highest quality electronic components available. This amplifier has been evaluated by the Underwriters Laboratories and has met all the applicable U.S. safety standards. 10 watts RMS; 24.4 watts peak
Independent gain and master volume.

6.5" Speaker
1/4" Input jack
1/4" Output jack
1/4" Headphone Jack

With this course the student will; Learn to read and play music, learn all the important major, minor and seventh chords shapes, learn to play over 25 well know songs using a range of two octaves as well as many chord progressions including rock, blues and turnaround progressions.

The 10 Easy Lessons Learn to Play Piano pack contains special sections on how to read sheet music of your favorite groups and a chord chart. All music examples are recorded onto the enclosed CD so you can hear how each example sounds.

The violin is fitted with ebony pegs and an anodized aluminum alloy fine tuner tailpiece. These features make the violin easy to tune, a necessity for beginners. The outfit comes
in a featherweight case and includes an ebony frog bow with genuine Mongolian
horsehair.

• Hand Carved Solid Select Spruce Top
• Ebony Pegs
• Hand Carved Solid Spruce Top
• Hand Carved Solid Maple Back, Sides, and Neck
• Inlaid Purfling
• Anodized Fine Tuner Tailpiece
• Golden Brown Finish
• Ebony Frog Bow with Mongolian Horsehair Bow
• Featherweight Case with Nylon Cover

• Hand hammered bell
• Lustrous lacquered brass finish
• Complete with plush lined, molded hardshell case
• Carefully designed for resonance and quality
• Italian pads

For Beginner To Advanced
(60 Pages)

Specifically designed for students who wish to play Blues Harmonica, either in a group or for fun. The emphasis is on making music immediately. Includeds note bending, train whistle and rhythm sounds, vibrato and improvisation.

By Peter Gelling

Book/CD

For Beginners
(56 Pages)

Learn to read and play harmonica using the Easy Read Harmonica system. Learn techniques such as hand vibrato, train whistle and note bending. Covers Folk, Rock, Blues etc.

By Peter Gelling

Book/CD

For Beginners
(60 Pages)

An easy and informative introduction to saxophone playing for the beginner. Covers fingering and note reading over a range of two and a half octaves in a variety of styles, along with music theory and an introduction to improvisation.

By Peter Gelling

Book/CD

For Beginning Flute Players
(64 Pages)

A great introduction to the fundamentals of Flute playing and understanding music.Covers a variety of styles including Classical, Jazz, Blues, Pop and Rock, along with an introduction to improvising.

By Gary Turner and Peter Gelling

Book/CD

The RMX Series amplifiers give you clean, dynamic power with the legendary QSC sound quality and reliability that pros depend on. The RMX Series deliver unmatched performance at a breakthrough price.

And with QSC's free 6 year warranty, the RMX is an even better value. *

Muscular Power Plant

Superior Performance

Comprehensive Features

• The RMX 1850HD provides improved thermal performance that gives you higher continuous power in 2 ohms stereo or 4 ohms bridged applications (a RMX 1850HD exclusive!)
• Independent defeatable clip limiters reduce distortion without sacrificing peak performance.
• Selectable low-frequency filters boost system response, protect speakers and ensure low-end tightness by more precisely matching the amplifier's range to the loudspeakers.
• Barrier strip, XLR and 1/4" balanced inputs plus Speakon and binding post outputs provide easy connections.
• Low-noise variable speed fans with rear-to-front air flow keep amplifiers and racks cool.

Proven Reliability

• Compact size - up to 2400 watts in 2 rack spaces
• Professional quality performance - incorporates road-proven QSC designs
• High-current toroidal transformers for greater two-ohm power and low noise
• Independent user-defeatable clip limiters reduce distortion
• Selectable low-frequency filters (30 Hz or 50 Hz) protect speakers and increase headroom
• Balanced 1/4" (6.3mm) TRS, XLR and barrier strip inputs
• Binding post and Neutrik Speakon outputs
• Front mounted gain controls for easy access
• Signal and Clip LED indicators to monitor performance
• Independent DC and thermal overload protection on each channel automatically protects amplifier and speakers
• 3-year warranty plus optional 3-year extended service contract

SPECIFICATIONS	RMX 850	RMX 1450	RMX 1850HD	RMX 2450
	STEREO MODE (Both Channels Driven)
8 ohms   FTC 20 Hz - 20 kHz, 0.1% THD   EIA 1 kHz, 0.1% THD	185 W 200 W	260 W 280 W	350 W 360 W	450 W 500 W
4 ohms   FTC 20 Hz - 20 kHz, 0.1% THD   EIA 1 kHz, 0.1% THD	280 W 300 W	400 W 450 W	550 W 600 W	650 W 750 W
2 ohms    EIA 1 kHz, 1% THD	430 W	700 W	900 W	1200 W
	BRIDGE MONO MODE
8 ohms   FTC 20 Hz - 20 kHz, 0.1% THD   EIA 1 kHz, 0.1% THD	530 W 600 W	800 W 900 W	1100 W 1200 W	1300 W 1500 W
4 ohms    EIA 1 kHz, 1% THD	830 W	1400 W	1800 W	2400 W
Signal to Noise, 20 Hz-20 kHz	100 dB	100 dB	100 dB	100 dB
Distortion (SMPTE-IM)	Less than 0.01%	Less than 0.01%	Less than 0.02%	Less than 0.02%
Input Sensitivity @ 8 ohms	1.15V (+3.4 dBu)	1.15V (+3.4 dBu)	1.16V (+3.5 dBu)	1.23V (+4.0 dBu)
Voltage Gain	31.6x (30 dB)	40x (32 dB)	46x (33 dB)	50x (34 dB)
Output Circuitry	AB	AB	Class H	Class H
Power Requirements 1/8 power pink noise at 4 ohms *	5A	6A	6A	7A
	ALL MODELS
Distortion (Typical)   20 Hz - 20 kHz: 10 dB below rated power   1.0 kHz and below: full rated power	Less than 0.03% THD, 4 and 8 ohms Less than 0.03% THD, 4 and 8 ohms
Frequency Response	20 Hz-20 kHz, ±1 dB -3 dB points: 5 Hz - 50 kHz
Damping Factor, 1 kHz and below	Greater than 300 at 8 ohms
Input Impedance	10k ohms unbalanced, 20k ohms balanced
Input Clipping	10 Vrms (+22 dB)
Cooling	Continuously variable-speed fan, rear-to-front air flow
Connectors, each channel	Input: Active balanced; barrier strip, XLR and 1/4" (6.3mm) TRS tip and XLR (pin 2 positive) Output: touch-proof binding posts and Neutrik® Speakon®
Controls	Front: AC switch, Ch. 1 and Ch. 2 gain knobs Rear: 10-position DIP switch
Indicators	Power-On: Green LED Signal: Yellow LED (1 per channel) Clip: Red LED (1 per channel)
Amplifier Protection	Stable into reactive or mismatched loads
Load Protection	On/off muting, AC coupling (850, 1450), triac crowbar (1850HD, 2450, on each channel)
Power Requirements	100, 120, 230 VAC, 50-60 Hz
Dimensions	19" (48.3 cm) rack mounting, 3.5" (8.9 cm) tall (2 RU), 15.9" (40 cm) deep (rack mounting to rear support ears)
Weight	35 lbs (15.9 kg) net	40 lbs (18.2 kg) net	44.5 lbs (20.2 kg) net

The PLX2 series is a range of premium quality, high-power amplifiers designed for the most demanding live performance uses. Built on the third generation of QSC PowerLight® technology, PLX2 amplifiers combine light weight, superlative audio quality and proven QSC reliability. With power ratings up to 3,600 watts, PLX2 amplifiers are capable of providing plenty of clean, undistorted output to the most power hungry speaker systems.

---

Two ways to get PLX2 performance

Mechanical

PowerLight Technology

Audio Quality

PLX2 audio power circuitry achieves performance normally associated with studio reference amplifiers. In order to reduce crossover distortion, precision bias tracking makes minute adjustments as amplifier temperature changes. The benefit is cleaner high-frequency and more consistent sound no matter how hard the amplifier is driven. The higher power models use QSC-exclusive class H output circuitry, a form of audio "turbocharging" that increases maximum power without affecting the basic audio quality.

PLX Series Power Amplifiers

* 1 kHz, 0.1% THD, both channels driven
** 1 kHz, 1% THD, both channels driven

PLX2 Series Features

All models

• Very light weight ("02" models, 21 lbs/9.5 kg, "04" models 13 lbs/5.9 kg).
• Cooling design exhausts hot air out the front, keeping the rack cool. Flow-through heat sinks require no filters that could become clogged.
• Front panel LED power, clip, -10 dB, and signal present indicators for system monitoring and troubleshooting. 02 models also feature bridge and parallel mode LED indicators.
• Speakon® NL-4 output connectors provide a positive-locking speaker connection. Ch 1 output uses all 4 wires for single-cable connection to bi-amplified speakers.
• 21-position front-panel gain controls for precise, repeatable amplifier adjustment.
• Balanced XLR inputs with parallel TRS connectors accommodate all common input connectors and support loop-through operation.
• Patented PowerLight power supply technology with other patents pending.

04 models

• Value combined with uncompromised PLX technology, quality and performance for applications that don't require bridged or 2 ohm stereo operation.
• Two models with power ratings up to 900 watts per channel @ 4 ohms.
• Clip limiting protects speakers; thermal limiting maintains operation even during abnormal overloads.

02 models

• Speakon® NL4 and binding post outputs.
• 100 Hz high pass and low pass filters for bi-amping subwoofer and satellite systems without the need for an external crossover.
• Switchable/defeatable 33 Hz infrasonic filters protect woofers from over-excursion damage.
• Switchable/defeatable clip limiters.
• Four models with power ratings up to 1800 watts per channel @ 2 ohms, 3600 watts bridged @ 4 ohms.

The PLX2 series is a range of premium quality, high-power amplifiers designed for the most demanding live performance uses. Built on the third generation of QSC PowerLight® technology, PLX2 amplifiers combine light weight, superlative audio quality and proven QSC reliability. With power ratings up to 3,600 watts, PLX2 amplifiers are capable of providing plenty of clean, undistorted output to the most power hungry speaker systems.

---

Two ways to get PLX2 performance

Mechanical

PowerLight Technology

Audio Quality

PLX2 audio power circuitry achieves performance normally associated with studio reference amplifiers. In order to reduce crossover distortion, precision bias tracking makes minute adjustments as amplifier temperature changes. The benefit is cleaner high-frequency and more consistent sound no matter how hard the amplifier is driven. The higher power models use QSC-exclusive class H output circuitry, a form of audio "turbocharging" that increases maximum power without affecting the basic audio quality.

PLX Series Power Amplifiers

* 1 kHz, 0.1% THD, both channels driven
** 1 kHz, 1% THD, both channels driven

PLX2 Series Features

All models

• Very light weight ("02" models, 21 lbs/9.5 kg, "04" models 13 lbs/5.9 kg).
• Cooling design exhausts hot air out the front, keeping the rack cool. Flow-through heat sinks require no filters that could become clogged.
• Front panel LED power, clip, -10 dB, and signal present indicators for system monitoring and troubleshooting. 02 models also feature bridge and parallel mode LED indicators.
• Speakon® NL-4 output connectors provide a positive-locking speaker connection. Ch 1 output uses all 4 wires for single-cable connection to bi-amplified speakers.
• 21-position front-panel gain controls for precise, repeatable amplifier adjustment.
• Balanced XLR inputs with parallel TRS connectors accommodate all common input connectors and support loop-through operation.
• Patented PowerLight power supply technology with other patents pending.

04 models

• Value combined with uncompromised PLX technology, quality and performance for applications that don't require bridged or 2 ohm stereo operation.
• Two models with power ratings up to 900 watts per channel @ 4 ohms.
• Clip limiting protects speakers; thermal limiting maintains operation even during abnormal overloads.

02 models

• Speakon® NL4 and binding post outputs.
• 100 Hz high pass and low pass filters for bi-amping subwoofer and satellite systems without the need for an external crossover.
• Switchable/defeatable 33 Hz infrasonic filters protect woofers from over-excursion damage.
• Switchable/defeatable clip limiters.
• Four models with power ratings up to 1800 watts per channel @ 2 ohms, 3600 watts bridged @ 4 ohms.

The PLX2 series is a range of premium quality, high-power amplifiers designed for the most demanding live performance uses. Built on the third generation of QSC PowerLight® technology, PLX2 amplifiers combine light weight, superlative audio quality and proven QSC reliability. With power ratings up to 3,600 watts, PLX2 amplifiers are capable of providing plenty of clean, undistorted output to the most power hungry speaker systems.

---

Two ways to get PLX2 performance

Mechanical

PowerLight Technology

Audio Quality

PLX2 audio power circuitry achieves performance normally associated with studio reference amplifiers. In order to reduce crossover distortion, precision bias tracking makes minute adjustments as amplifier temperature changes. The benefit is cleaner high-frequency and more consistent sound no matter how hard the amplifier is driven. The higher power models use QSC-exclusive class H output circuitry, a form of audio "turbocharging" that increases maximum power without affecting the basic audio quality.

PLX Series Power Amplifiers

* 1 kHz, 0.1% THD, both channels driven
** 1 kHz, 1% THD, both channels driven

PLX2 Series Features

All models

• Very light weight ("02" models, 21 lbs/9.5 kg, "04" models 13 lbs/5.9 kg).
• Cooling design exhausts hot air out the front, keeping the rack cool. Flow-through heat sinks require no filters that could become clogged.
• Front panel LED power, clip, -10 dB, and signal present indicators for system monitoring and troubleshooting. 02 models also feature bridge and parallel mode LED indicators.
• Speakon® NL-4 output connectors provide a positive-locking speaker connection. Ch 1 output uses all 4 wires for single-cable connection to bi-amplified speakers.
• 21-position front-panel gain controls for precise, repeatable amplifier adjustment.
• Balanced XLR inputs with parallel TRS connectors accommodate all common input connectors and support loop-through operation.
• Patented PowerLight power supply technology with other patents pending.

04 models

• Value combined with uncompromised PLX technology, quality and performance for applications that don't require bridged or 2 ohm stereo operation.
• Two models with power ratings up to 900 watts per channel @ 4 ohms.
• Clip limiting protects speakers; thermal limiting maintains operation even during abnormal overloads.

02 models

• Speakon® NL4 and binding post outputs.
• 100 Hz high pass and low pass filters for bi-amping subwoofer and satellite systems without the need for an external crossover.
• Switchable/defeatable 33 Hz infrasonic filters protect woofers from over-excursion damage.
• Switchable/defeatable clip limiters.
• Four models with power ratings up to 1800 watts per channel @ 2 ohms, 3600 watts bridged @ 4 ohms.

The PLX2 series is a range of premium quality, high-power amplifiers designed for the most demanding live performance uses. Built on the third generation of QSC PowerLight® technology, PLX2 amplifiers combine light weight, superlative audio quality and proven QSC reliability. With power ratings up to 3,600 watts, PLX2 amplifiers are capable of providing plenty of clean, undistorted output to the most power hungry speaker systems.

---

Two ways to get PLX2 performance

Mechanical

PowerLight Technology

Audio Quality

PLX2 audio power circuitry achieves performance normally associated with studio reference amplifiers. In order to reduce crossover distortion, precision bias tracking makes minute adjustments as amplifier temperature changes. The benefit is cleaner high-frequency and more consistent sound no matter how hard the amplifier is driven. The higher power models use QSC-exclusive class H output circuitry, a form of audio "turbocharging" that increases maximum power without affecting the basic audio quality.

PLX Series Power Amplifiers

* 1 kHz, 0.1% THD, both channels driven
** 1 kHz, 1% THD, both channels driven

PLX2 Series Features

All models

• Very light weight ("02" models, 21 lbs/9.5 kg, "04" models 13 lbs/5.9 kg).
• Cooling design exhausts hot air out the front, keeping the rack cool. Flow-through heat sinks require no filters that could become clogged.
• Front panel LED power, clip, -10 dB, and signal present indicators for system monitoring and troubleshooting. 02 models also feature bridge and parallel mode LED indicators.
• Speakon® NL-4 output connectors provide a positive-locking speaker connection. Ch 1 output uses all 4 wires for single-cable connection to bi-amplified speakers.
• 21-position front-panel gain controls for precise, repeatable amplifier adjustment.
• Balanced XLR inputs with parallel TRS connectors accommodate all common input connectors and support loop-through operation.
• Patented PowerLight power supply technology with other patents pending.

04 models

• Value combined with uncompromised PLX technology, quality and performance for applications that don't require bridged or 2 ohm stereo operation.
• Two models with power ratings up to 900 watts per channel @ 4 ohms.
• Clip limiting protects speakers; thermal limiting maintains operation even during abnormal overloads.

02 models

• Speakon® NL4 and binding post outputs.
• 100 Hz high pass and low pass filters for bi-amping subwoofer and satellite systems without the need for an external crossover.
• Switchable/defeatable 33 Hz infrasonic filters protect woofers from over-excursion damage.
• Switchable/defeatable clip limiters.
• Four models with power ratings up to 1800 watts per channel @ 2 ohms, 3600 watts bridged @ 4 ohms.

The PLX2 series is a range of premium quality, high-power amplifiers designed for the most demanding live performance uses. Built on the third generation of QSC PowerLight® technology, PLX2 amplifiers combine light weight, superlative audio quality and proven QSC reliability. With power ratings up to 3,600 watts, PLX2 amplifiers are capable of providing plenty of clean, undistorted output to the most power hungry speaker systems.

---

Two ways to get PLX2 performance

Mechanical

PowerLight Technology

Audio Quality

PLX2 audio power circuitry achieves performance normally associated with studio reference amplifiers. In order to reduce crossover distortion, precision bias tracking makes minute adjustments as amplifier temperature changes. The benefit is cleaner high-frequency and more consistent sound no matter how hard the amplifier is driven. The higher power models use QSC-exclusive class H output circuitry, a form of audio "turbocharging" that increases maximum power without affecting the basic audio quality.

PLX Series Power Amplifiers

* 1 kHz, 0.1% THD, both channels driven
** 1 kHz, 1% THD, both channels driven

PLX2 Series Features

All models

• Very light weight ("02" models, 21 lbs/9.5 kg, "04" models 13 lbs/5.9 kg).
• Cooling design exhausts hot air out the front, keeping the rack cool. Flow-through heat sinks require no filters that could become clogged.
• Front panel LED power, clip, -10 dB, and signal present indicators for system monitoring and troubleshooting. 02 models also feature bridge and parallel mode LED indicators.
• Speakon® NL-4 output connectors provide a positive-locking speaker connection. Ch 1 output uses all 4 wires for single-cable connection to bi-amplified speakers.
• 21-position front-panel gain controls for precise, repeatable amplifier adjustment.
• Balanced XLR inputs with parallel TRS connectors accommodate all common input connectors and support loop-through operation.
• Patented PowerLight power supply technology with other patents pending.

04 models

• Value combined with uncompromised PLX technology, quality and performance for applications that don't require bridged or 2 ohm stereo operation.
• Two models with power ratings up to 900 watts per channel @ 4 ohms.
• Clip limiting protects speakers; thermal limiting maintains operation even during abnormal overloads.

02 models

• Speakon® NL4 and binding post outputs.
• 100 Hz high pass and low pass filters for bi-amping subwoofer and satellite systems without the need for an external crossover.
• Switchable/defeatable 33 Hz infrasonic filters protect woofers from over-excursion damage.
• Switchable/defeatable clip limiters.
• Four models with power ratings up to 1800 watts per channel @ 2 ohms, 3600 watts bridged @ 4 ohms.

The PLX2 series is a range of premium quality, high-power amplifiers designed for the most demanding live performance uses. Built on the third generation of QSC PowerLight® technology, PLX2 amplifiers combine light weight, superlative audio quality and proven QSC reliability. With power ratings up to 3,600 watts, PLX2 amplifiers are capable of providing plenty of clean, undistorted output to the most power hungry speaker systems.

---

Two ways to get PLX2 performance

Mechanical

PowerLight Technology

Audio Quality

PLX2 audio power circuitry achieves performance normally associated with studio reference amplifiers. In order to reduce crossover distortion, precision bias tracking makes minute adjustments as amplifier temperature changes. The benefit is cleaner high-frequency and more consistent sound no matter how hard the amplifier is driven. The higher power models use QSC-exclusive class H output circuitry, a form of audio "turbocharging" that increases maximum power without affecting the basic audio quality.

PLX Series Power Amplifiers

* 1 kHz, 0.1% THD, both channels driven
** 1 kHz, 1% THD, both channels driven

PLX2 Series Features

All models

• Very light weight ("02" models, 21 lbs/9.5 kg, "04" models 13 lbs/5.9 kg).
• Cooling design exhausts hot air out the front, keeping the rack cool. Flow-through heat sinks require no filters that could become clogged.
• Front panel LED power, clip, -10 dB, and signal present indicators for system monitoring and troubleshooting. 02 models also feature bridge and parallel mode LED indicators.
• Speakon® NL-4 output connectors provide a positive-locking speaker connection. Ch 1 output uses all 4 wires for single-cable connection to bi-amplified speakers.
• 21-position front-panel gain controls for precise, repeatable amplifier adjustment.
• Balanced XLR inputs with parallel TRS connectors accommodate all common input connectors and support loop-through operation.
• Patented PowerLight power supply technology with other patents pending.

04 models

• Value combined with uncompromised PLX technology, quality and performance for applications that don't require bridged or 2 ohm stereo operation.
• Two models with power ratings up to 900 watts per channel @ 4 ohms.
• Clip limiting protects speakers; thermal limiting maintains operation even during abnormal overloads.

02 models

• Speakon® NL4 and binding post outputs.
• 100 Hz high pass and low pass filters for bi-amping subwoofer and satellite systems without the need for an external crossover.
• Switchable/defeatable 33 Hz infrasonic filters protect woofers from over-excursion damage.
• Switchable/defeatable clip limiters.
• Four models with power ratings up to 1800 watts per channel @ 2 ohms, 3600 watts bridged @ 4 ohms.

The RMX Series amplifiers give you clean, dynamic power with the legendary QSC sound quality and reliability that pros depend on. The RMX Series deliver unmatched performance at a breakthrough price.

And with QSC's free 6 year warranty, the RMX is an even better value. *

Muscular Power Plant

Superior Performance

Comprehensive Features

• The RMX 1850HD provides improved thermal performance that gives you higher continuous power in 2 ohms stereo or 4 ohms bridged applications (a RMX 1850HD exclusive!)
• Independent defeatable clip limiters reduce distortion without sacrificing peak performance.
• Selectable low-frequency filters boost system response, protect speakers and ensure low-end tightness by more precisely matching the amplifier's range to the loudspeakers.
• Barrier strip, XLR and 1/4" balanced inputs plus Speakon and binding post outputs provide easy connections.
• Low-noise variable speed fans with rear-to-front air flow keep amplifiers and racks cool.

Proven Reliability

• Compact size - up to 2400 watts in 2 rack spaces
• Professional quality performance - incorporates road-proven QSC designs
• High-current toroidal transformers for greater two-ohm power and low noise
• Independent user-defeatable clip limiters reduce distortion
• Selectable low-frequency filters (30 Hz or 50 Hz) protect speakers and increase headroom
• Balanced 1/4" (6.3mm) TRS, XLR and barrier strip inputs
• Binding post and Neutrik Speakon outputs
• Front mounted gain controls for easy access
• Signal and Clip LED indicators to monitor performance
• Independent DC and thermal overload protection on each channel automatically protects amplifier and speakers
• 3-year warranty plus optional 3-year extended service contract

SPECIFICATIONS	RMX 850	RMX 1450	RMX 1850HD	RMX 2450
	STEREO MODE (Both Channels Driven)
8 ohms   FTC 20 Hz - 20 kHz, 0.1% THD   EIA 1 kHz, 0.1% THD	185 W 200 W	260 W 280 W	350 W 360 W	450 W 500 W
4 ohms   FTC 20 Hz - 20 kHz, 0.1% THD   EIA 1 kHz, 0.1% THD	280 W 300 W	400 W 450 W	550 W 600 W	650 W 750 W
2 ohms    EIA 1 kHz, 1% THD	430 W	700 W	900 W	1200 W
	BRIDGE MONO MODE
8 ohms   FTC 20 Hz - 20 kHz, 0.1% THD   EIA 1 kHz, 0.1% THD	530 W 600 W	800 W 900 W	1100 W 1200 W	1300 W 1500 W
4 ohms    EIA 1 kHz, 1% THD	830 W	1400 W	1800 W	2400 W
Signal to Noise, 20 Hz-20 kHz	100 dB	100 dB	100 dB	100 dB
Distortion (SMPTE-IM)	Less than 0.01%	Less than 0.01%	Less than 0.02%	Less than 0.02%
Input Sensitivity @ 8 ohms	1.15V (+3.4 dBu)	1.15V (+3.4 dBu)	1.16V (+3.5 dBu)	1.23V (+4.0 dBu)
Voltage Gain	31.6x (30 dB)	40x (32 dB)	46x (33 dB)	50x (34 dB)
Output Circuitry	AB	AB	Class H	Class H
Power Requirements 1/8 power pink noise at 4 ohms *	5A	6A	6A	7A
	ALL MODELS
Distortion (Typical)   20 Hz - 20 kHz: 10 dB below rated power   1.0 kHz and below: full rated power	Less than 0.03% THD, 4 and 8 ohms Less than 0.03% THD, 4 and 8 ohms
Frequency Response	20 Hz-20 kHz, ±1 dB -3 dB points: 5 Hz - 50 kHz
Damping Factor, 1 kHz and below	Greater than 300 at 8 ohms
Input Impedance	10k ohms unbalanced, 20k ohms balanced
Input Clipping	10 Vrms (+22 dB)
Cooling	Continuously variable-speed fan, rear-to-front air flow
Connectors, each channel	Input: Active balanced; barrier strip, XLR and 1/4" (6.3mm) TRS tip and XLR (pin 2 positive) Output: touch-proof binding posts and Neutrik® Speakon®
Controls	Front: AC switch, Ch. 1 and Ch. 2 gain knobs Rear: 10-position DIP switch
Indicators	Power-On: Green LED Signal: Yellow LED (1 per channel) Clip: Red LED (1 per channel)
Amplifier Protection	Stable into reactive or mismatched loads
Load Protection	On/off muting, AC coupling (850, 1450), triac crowbar (1850HD, 2450, on each channel)
Power Requirements	100, 120, 230 VAC, 50-60 Hz
Dimensions	19" (48.3 cm) rack mounting, 3.5" (8.9 cm) tall (2 RU), 15.9" (40 cm) deep (rack mounting to rear support ears)
Weight	35 lbs (15.9 kg) net	40 lbs (18.2 kg) net	44.5 lbs (20.2 kg) net

The RMX Series amplifiers give you clean, dynamic power with the legendary QSC sound quality and reliability that pros depend on. The RMX Series deliver unmatched performance at a breakthrough price.

And with QSC's free 6 year warranty, the RMX is an even better value. *

Muscular Power Plant

Superior Performance

Comprehensive Features

• The RMX 1850HD provides improved thermal performance that gives you higher continuous power in 2 ohms stereo or 4 ohms bridged applications (a RMX 1850HD exclusive!)
• Independent defeatable clip limiters reduce distortion without sacrificing peak performance.
• Selectable low-frequency filters boost system response, protect speakers and ensure low-end tightness by more precisely matching the amplifier's range to the loudspeakers.
• Barrier strip, XLR and 1/4" balanced inputs plus Speakon and binding post outputs provide easy connections.
• Low-noise variable speed fans with rear-to-front air flow keep amplifiers and racks cool.

Proven Reliability

• Compact size - up to 2400 watts in 2 rack spaces
• Professional quality performance - incorporates road-proven QSC designs
• High-current toroidal transformers for greater two-ohm power and low noise
• Independent user-defeatable clip limiters reduce distortion
• Selectable low-frequency filters (30 Hz or 50 Hz) protect speakers and increase headroom
• Balanced 1/4" (6.3mm) TRS, XLR and barrier strip inputs
• Binding post and Neutrik Speakon outputs
• Front mounted gain controls for easy access
• Signal and Clip LED indicators to monitor performance
• Independent DC and thermal overload protection on each channel automatically protects amplifier and speakers
• 3-year warranty plus optional 3-year extended service contract

SPECIFICATIONS	RMX 850	RMX 1450	RMX 1850HD	RMX 2450
	STEREO MODE (Both Channels Driven)
8 ohms   FTC 20 Hz - 20 kHz, 0.1% THD   EIA 1 kHz, 0.1% THD	185 W 200 W	260 W 280 W	350 W 360 W	450 W 500 W
4 ohms   FTC 20 Hz - 20 kHz, 0.1% THD   EIA 1 kHz, 0.1% THD	280 W 300 W	400 W 450 W	550 W 600 W	650 W 750 W
2 ohms    EIA 1 kHz, 1% THD	430 W	700 W	900 W	1200 W
	BRIDGE MONO MODE
8 ohms   FTC 20 Hz - 20 kHz, 0.1% THD   EIA 1 kHz, 0.1% THD	530 W 600 W	800 W 900 W	1100 W 1200 W	1300 W 1500 W
4 ohms    EIA 1 kHz, 1% THD	830 W	1400 W	1800 W	2400 W
Signal to Noise, 20 Hz-20 kHz	100 dB	100 dB	100 dB	100 dB
Distortion (SMPTE-IM)	Less than 0.01%	Less than 0.01%	Less than 0.02%	Less than 0.02%
Input Sensitivity @ 8 ohms	1.15V (+3.4 dBu)	1.15V (+3.4 dBu)	1.16V (+3.5 dBu)	1.23V (+4.0 dBu)
Voltage Gain	31.6x (30 dB)	40x (32 dB)	46x (33 dB)	50x (34 dB)
Output Circuitry	AB	AB	Class H	Class H
Power Requirements 1/8 power pink noise at 4 ohms *	5A	6A	6A	7A
	ALL MODELS
Distortion (Typical)   20 Hz - 20 kHz: 10 dB below rated power   1.0 kHz and below: full rated power	Less than 0.03% THD, 4 and 8 ohms Less than 0.03% THD, 4 and 8 ohms
Frequency Response	20 Hz-20 kHz, ±1 dB -3 dB points: 5 Hz - 50 kHz
Damping Factor, 1 kHz and below	Greater than 300 at 8 ohms
Input Impedance	10k ohms unbalanced, 20k ohms balanced
Input Clipping	10 Vrms (+22 dB)
Cooling	Continuously variable-speed fan, rear-to-front air flow
Connectors, each channel	Input: Active balanced; barrier strip, XLR and 1/4" (6.3mm) TRS tip and XLR (pin 2 positive) Output: touch-proof binding posts and Neutrik® Speakon®
Controls	Front: AC switch, Ch. 1 and Ch. 2 gain knobs Rear: 10-position DIP switch
Indicators	Power-On: Green LED Signal: Yellow LED (1 per channel) Clip: Red LED (1 per channel)
Amplifier Protection	Stable into reactive or mismatched loads
Load Protection	On/off muting, AC coupling (850, 1450), triac crowbar (1850HD, 2450, on each channel)
Power Requirements	100, 120, 230 VAC, 50-60 Hz
Dimensions	19" (48.3 cm) rack mounting, 3.5" (8.9 cm) tall (2 RU), 15.9" (40 cm) deep (rack mounting to rear support ears)
Weight	35 lbs (15.9 kg) net	40 lbs (18.2 kg) net	44.5 lbs (20.2 kg) net

The RMX Series amplifiers give you clean, dynamic power with the legendary QSC sound quality and reliability that pros depend on. The RMX Series deliver unmatched performance at a breakthrough price.

And with QSC's free 6 year warranty, the RMX is an even better value. *

Muscular Power Plant

Superior Performance

Comprehensive Features

• The RMX 1850HD provides improved thermal performance that gives you higher continuous power in 2 ohms stereo or 4 ohms bridged applications (a RMX 1850HD exclusive!)
• Independent defeatable clip limiters reduce distortion without sacrificing peak performance.
• Selectable low-frequency filters boost system response, protect speakers and ensure low-end tightness by more precisely matching the amplifier's range to the loudspeakers.
• Barrier strip, XLR and 1/4" balanced inputs plus Speakon and binding post outputs provide easy connections.
• Low-noise variable speed fans with rear-to-front air flow keep amplifiers and racks cool.

Proven Reliability

• Compact size - up to 2400 watts in 2 rack spaces
• Professional quality performance - incorporates road-proven QSC designs
• High-current toroidal transformers for greater two-ohm power and low noise
• Independent user-defeatable clip limiters reduce distortion
• Selectable low-frequency filters (30 Hz or 50 Hz) protect speakers and increase headroom
• Balanced 1/4" (6.3mm) TRS, XLR and barrier strip inputs
• Binding post and Neutrik Speakon outputs
• Front mounted gain controls for easy access
• Signal and Clip LED indicators to monitor performance
• Independent DC and thermal overload protection on each channel automatically protects amplifier and speakers
• 3-year warranty plus optional 3-year extended service contract

SPECIFICATIONS	RMX 850	RMX 1450	RMX 1850HD	RMX 2450
	STEREO MODE (Both Channels Driven)
8 ohms   FTC 20 Hz - 20 kHz, 0.1% THD   EIA 1 kHz, 0.1% THD	185 W 200 W	260 W 280 W	350 W 360 W	450 W 500 W
4 ohms   FTC 20 Hz - 20 kHz, 0.1% THD   EIA 1 kHz, 0.1% THD	280 W 300 W	400 W 450 W	550 W 600 W	650 W 750 W
2 ohms    EIA 1 kHz, 1% THD	430 W	700 W	900 W	1200 W
	BRIDGE MONO MODE
8 ohms   FTC 20 Hz - 20 kHz, 0.1% THD   EIA 1 kHz, 0.1% THD	530 W 600 W	800 W 900 W	1100 W 1200 W	1300 W 1500 W
4 ohms    EIA 1 kHz, 1% THD	830 W	1400 W	1800 W	2400 W
Signal to Noise, 20 Hz-20 kHz	100 dB	100 dB	100 dB	100 dB
Distortion (SMPTE-IM)	Less than 0.01%	Less than 0.01%	Less than 0.02%	Less than 0.02%
Input Sensitivity @ 8 ohms	1.15V (+3.4 dBu)	1.15V (+3.4 dBu)	1.16V (+3.5 dBu)	1.23V (+4.0 dBu)
Voltage Gain	31.6x (30 dB)	40x (32 dB)	46x (33 dB)	50x (34 dB)
Output Circuitry	AB	AB	Class H	Class H
Power Requirements 1/8 power pink noise at 4 ohms *	5A	6A	6A	7A
	ALL MODELS
Distortion (Typical)   20 Hz - 20 kHz: 10 dB below rated power   1.0 kHz and below: full rated power	Less than 0.03% THD, 4 and 8 ohms Less than 0.03% THD, 4 and 8 ohms
Frequency Response	20 Hz-20 kHz, ±1 dB -3 dB points: 5 Hz - 50 kHz
Damping Factor, 1 kHz and below	Greater than 300 at 8 ohms
Input Impedance	10k ohms unbalanced, 20k ohms balanced
Input Clipping	10 Vrms (+22 dB)
Cooling	Continuously variable-speed fan, rear-to-front air flow
Connectors, each channel	Input: Active balanced; barrier strip, XLR and 1/4" (6.3mm) TRS tip and XLR (pin 2 positive) Output: touch-proof binding posts and Neutrik® Speakon®
Controls	Front: AC switch, Ch. 1 and Ch. 2 gain knobs Rear: 10-position DIP switch
Indicators	Power-On: Green LED Signal: Yellow LED (1 per channel) Clip: Red LED (1 per channel)
Amplifier Protection	Stable into reactive or mismatched loads
Load Protection	On/off muting, AC coupling (850, 1450), triac crowbar (1850HD, 2450, on each channel)
Power Requirements	100, 120, 230 VAC, 50-60 Hz
Dimensions	19" (48.3 cm) rack mounting, 3.5" (8.9 cm) tall (2 RU), 15.9" (40 cm) deep (rack mounting to rear support ears)
Weight	35 lbs (15.9 kg) net	40 lbs (18.2 kg) net	44.5 lbs (20.2 kg) net	44.5 lbs (20.2 kg) net

The RMX Series amplifiers give you clean, dynamic power with the legendary QSC sound quality and reliability that pros depend on. The RMX Series deliver unmatched performance at a new breakthrough price.

Muscular Power Plant
The power supply is the heart of an amplifier, converting raw AC power from the wall to clean DC for the audio circuitry. The RMX uses a powerful high-current toroidal transformer and ample filter capacitance to ensure generous energy reserves. This makes a critical difference in sound quality, allowing the amp to effortlessly punch out high level transients, even when driving abusive 2-ohm speaker loads.

Superior Performance
RMX amplifiers deliver true studio-quality sound. A full complementary output circuit using the highest-grade linear output devices delivers ultra-low distortion ( <0.05% THD) & a ruler-flat frequency response. SMT (Surface Mount Technology) triples small-signal component density, enabling us to pack up to 2400 watts of power in a chassis only 2 rack spaces & less than 16" deep. And unlike other designs, RMX output devices are direct-mounted to the heat sink for optimum thermal coupling & cooling.

Comprehensive Features
The RMX Series is packed full of professional features that increase performance and flexibility:

• The RMX 1850HD provides improved thermal performance that gives you higher continuous power in 2-ohms stereo or 4-ohms bridged applications (a RMX 1850HD exclusive!)
  

• Independent defeatable clip limiters reduce distortion without sacrificing peak performance.
  

• Selectable low-frequency filters boost system response, protect speakers and ensure low-end tightness by more precisely matching the amplifier's range to the loudspeakers.
  

• Barrier strip, XLR and 1/4" balanced inputs plus Speakon and binding post outputs provide easy connections.
  

• Low-noise variable speed fans with rear-to-front air flow keep amplifiers and racks cool.

Proven Reliability
With over 30 years of building amplifiers for the largest touring companies and venues around the world, you can count on QSC's reputation for designing the most reliable amps available.

FEATURES

• Compact size--up to 2400 watts in 2 rack spaces
  

• Professional quality performance--incorporates road-proven QSC designs
  

• High-current toroidal transformers for greater two-ohm power and low noise
  

• Independent user-defeatable clip limiters reduce distortion
  

• Selectable low-frequency filters (30 Hz or 50 Hz) protect speakers and increase headroom
  

• Balanced 1/4" (6.3mm) TRS, XLR and barrier strip inputs
  

• Binding post and Neutrik Speakon outputs
  

• Front mounted gain controls for easy access
  

• Signal and Clip LED indicators to monitor performance
  

• Independent DC and thermal overload protection on each channel automatically protects amplifier and speakers
  

• 3-year warranty plus optional 3-year extended service contract

The Xs Series of power amplifiers from Crown represents a new era in affordable, quality power amplification. The line consists of four models in a uniform, rugged 2U chassis, incorporating the best of tried-and-true design principles and innovative features.

Features

The following applies to units in Stereo mode with 8-ohm loads and rated input sensitivity unless otherwise specified.

Performance

Power Output: See power charts above.

Sensitivity (volts RMS) for full rated power at 4 ohms: 1.4V

Frequency Response (at 1 watt): 22 Hz to 22 kHz: 1 dB. 

Phase Response (degrees at 1 watt, 20 Hz to 20 kHz): +5, 18

Signal-to-Noise Ratio:
A-weighted, below rated power: > 102 dB.
22Hz to 22kHz, below rated power: > 97 dB.

Total Harmonic Distortion (THD) at full bandwidth power, from 20 Hz to 20 kHz: 0.5%.

Intermodulation Distortion (IMD):
(60 Hz and 7 kHz at 4:1) from full rated output to 40 dB: < 1%.

Damping Factor (8 ohm) 10 Hz to 400 Hz:
> 200.

Crosstalk (below rated power):
Xs500 (1 kHz, 20 kHz): > 55 dB, > 55 dB
Xs700 (1 kHz, 20 kHz): > 55 dB, > 55 dB
Xs900 (1 kHz, 20 kHz): > 67 dB, > 62 dB
Xs1200 (1 kHz, 20 kHz): >65 dB, >45 dB
Xs4300 (1 kHz, 20 kHz): > 57 dB, > 40 dB

Voltage Gain (at maximum level setting):
Xs500: 32:1 (30.1 dB)
Xs700: 38:1 (31.6 dB)
Xs900: 42:1 (32.5 dB)
Xs1200: 47.4:1 (33.5 dB)
Xs4300: 25:1 (27.8 dB)

Load Impedance: Safe with all types of loads.
Xs500, 700, 900, 1200: 2 to 8 ohms in Stereo, 4 to 8 ohms in Bridge Mono.
Xs4300: 4 to 8 ohms in Stereo, 8 ohms in Bridge Mono.

AC Line Voltage and Frequency Configurations Available (10%): 120VAC/60 Hz and 230VAC/50 Hz

Controls

Level: Two or four front-panel, gray rotary level controls, one for each channel. 

Power: Front-panel switch; on when in the right-hand position.

Indicators

Signal: Two or four green LEDs, one for each channel, illuminates when the channels input signal level is above 40 dBu.

Clip: Two or four front-panel red LEDs, one for each channel, illuminates when the channels output signal is being overdriven.

Power: Yellow front-panel LED indicates amplifier has been turned on and AC power is available.

AC Mains: Red front-panel LED indicates the presence of AC power at the power cord, even if the amplifier is not turned on.

Fault: Red front-panel LED illuminates when amplifier is in protect mode. Also illuminates briefly during normal power-up when amplifier is first switched on.

Bridge: Yellow LED indicates that amplifier is in bridge mode (Channels 1 and 2, Channels 3 and 4 in Xs 4300).

Temp: Red LED indicates that channel(s) are in thermal protect mode.

Input/Output

Input Connectors: 
XLR-1/4" combo connectors: One per channel, 3-pin female XLR connector and TRS 1/4" phone jack accept balanced or unbalanced signals.
3-pin Phoenix-style connectors (2-channel models only): One per channel, accepts balanced or unbalanced signals.

Input Impedance (nominal) balanced, unbalanced: 20 k ohms, 10 k ohms.

Output Connectors:
Balanced XLR connectors (2-channel models only): One per channel, 3-pin male XLR connector in parallel with XLR-1/4" combo and Phoenix-style input connectors for daisy-chain operation.
5-Way binding post output connectors: One pair per channel; accept banana plugs, spade lugs or bare wire. 
Note: Binding post outputs on European models come with safety plugs installed to prevent European power-cord plugs from being inserted. The top & bottom entry positions for these connectors should therefore be used with European models.
4-Pole Speakon output connector (2-channel models only): One connector per channel. Accepts a 4-pole Speakon connector. 

DC Output Offset (shorted input): < 75 millivolts.
Output Signal: Stereo, unbalanced, two-channel or four-channel (Xs4300 only)

Protection

Xs Series amplifiers provide extensive protection and diagnostic capabilities, including output current limiting, microprocessor-controlled DC protection, circuit breaker, and special thermal protection for the units transformers.

Construction

Ventilation: Flow-through ventilation from front to back.

Cooling: Internal heat sinks with forced-air cooling for rapid, uniform heat dissipation. 

Air Volume Requirements (per minute per unit): 80.15 ft (2.27 m).

Dimensions: EIA Standard 19-inch (48.3-cm) rack mount width (EIA RS-310-B), 3.5-inch (8.9-cm) height and 17.14-inch (43.5-cm) depth behind the mounting surface.

Weight 
Net Weight: 28 lb 14 oz (13.1 kg)
Shipping Weight: 34 lb (15.4 kg)

The Xs Series of power amplifiers from Crown represents a new era in affordable, quality power amplification. The line consists of four models in a uniform, rugged 2U chassis, incorporating the best of tried-and-true design principles and innovative features.

Features

The following applies to units in Stereo mode with 8-ohm loads and rated input sensitivity unless otherwise specified.

Performance

Power Output: See power charts above.

Sensitivity (volts RMS) for full rated power at 4 ohms: 1.4V

Frequency Response (at 1 watt): 22 Hz to 22 kHz: 1 dB. 

Phase Response (degrees at 1 watt, 20 Hz to 20 kHz): +5, 18

Signal-to-Noise Ratio:
A-weighted, below rated power: > 102 dB.
22Hz to 22kHz, below rated power: > 97 dB.

Total Harmonic Distortion (THD) at full bandwidth power, from 20 Hz to 20 kHz: 0.5%.

Intermodulation Distortion (IMD):
(60 Hz and 7 kHz at 4:1) from full rated output to 40 dB: < 1%.

Damping Factor (8 ohm) 10 Hz to 400 Hz:
> 200.

Crosstalk (below rated power):
Xs500 (1 kHz, 20 kHz): > 55 dB, > 55 dB
Xs700 (1 kHz, 20 kHz): > 55 dB, > 55 dB
Xs900 (1 kHz, 20 kHz): > 67 dB, > 62 dB
Xs1200 (1 kHz, 20 kHz): >65 dB, >45 dB
Xs4300 (1 kHz, 20 kHz): > 57 dB, > 40 dB

Voltage Gain (at maximum level setting):
Xs500: 32:1 (30.1 dB)
Xs700: 38:1 (31.6 dB)
Xs900: 42:1 (32.5 dB)
Xs1200: 47.4:1 (33.5 dB)
Xs4300: 25:1 (27.8 dB)

Load Impedance: Safe with all types of loads.
Xs500, 700, 900, 1200: 2 to 8 ohms in Stereo, 4 to 8 ohms in Bridge Mono.
Xs4300: 4 to 8 ohms in Stereo, 8 ohms in Bridge Mono.

AC Line Voltage and Frequency Configurations Available (10%): 120VAC/60 Hz and 230VAC/50 Hz

Controls

Level: Two or four front-panel, gray rotary level controls, one for each channel. 

Power: Front-panel switch; on when in the right-hand position.

Indicators

Signal: Two or four green LEDs, one for each channel, illuminates when the channels input signal level is above 40 dBu.

Clip: Two or four front-panel red LEDs, one for each channel, illuminates when the channels output signal is being overdriven.

Power: Yellow front-panel LED indicates amplifier has been turned on and AC power is available.

AC Mains: Red front-panel LED indicates the presence of AC power at the power cord, even if the amplifier is not turned on.

Fault: Red front-panel LED illuminates when amplifier is in protect mode. Also illuminates briefly during normal power-up when amplifier is first switched on.

Bridge: Yellow LED indicates that amplifier is in bridge mode (Channels 1 and 2, Channels 3 and 4 in Xs 4300).

Temp: Red LED indicates that channel(s) are in thermal protect mode.

Input/Output

Input Connectors: 
XLR-1/4" combo connectors: One per channel, 3-pin female XLR connector and TRS 1/4" phone jack accept balanced or unbalanced signals.
3-pin Phoenix-style connectors (2-channel models only): One per channel, accepts balanced or unbalanced signals.

Input Impedance (nominal) balanced, unbalanced: 20 k ohms, 10 k ohms.

Output Connectors:
Balanced XLR connectors (2-channel models only): One per channel, 3-pin male XLR connector in parallel with XLR-1/4" combo and Phoenix-style input connectors for daisy-chain operation.
5-Way binding post output connectors: One pair per channel; accept banana plugs, spade lugs or bare wire. 
Note: Binding post outputs on European models come with safety plugs installed to prevent European power-cord plugs from being inserted. The top & bottom entry positions for these connectors should therefore be used with European models.
4-Pole Speakon output connector (2-channel models only): One connector per channel. Accepts a 4-pole Speakon connector. 

DC Output Offset (shorted input): < 75 millivolts.
Output Signal: Stereo, unbalanced, two-channel or four-channel (Xs4300 only)

Protection

Xs Series amplifiers provide extensive protection and diagnostic capabilities, including output current limiting, microprocessor-controlled DC protection, circuit breaker, and special thermal protection for the units transformers.

Construction

Ventilation: Flow-through ventilation from front to back.

Cooling: Internal heat sinks with forced-air cooling for rapid, uniform heat dissipation. 

Air Volume Requirements (per minute per unit): 80.15 ft (2.27 m).

Dimensions: EIA Standard 19-inch (48.3-cm) rack mount width (EIA RS-310-B), 3.5-inch (8.9-cm) height and 17.14-inch (43.5-cm) depth behind the mounting surface.

Weight 
Net Weight: 28 lb 14 oz (13.1 kg)
Shipping Weight: 34 lb (15.4 kg)

The XTi Series of Crown amplifiers are professional tools designed and built for portable PA applications. The series includes three models which are identical except for output power: XTi 1000, 2000 and 4000. All are rugged and lightweight, and offer unmatched value in their class.

XTi-Series amplifiers feature an LCD screen with DSP speaker presets for crossover frequencies, EQ, limiting, delay, and a subharmonic synthesizer. Other features include a switch-mode universal power supply, useful function indicators, proportional-speed fan assisted cooling, XLR inputs, Speakon® and binding-post outputs, short-circuit protection and more.

With their powerful, reliable performance, XTi-Series amps easily handle 2-ohm loads and are capable of chest-thumping lows. Plus, your investment in an XTi-Series amplifier is backed by Crown’s Three-Year, No-Fault, Fully Transferable Warranty.

Specifications

Output Power (1 kHz, 0.5% THD)
	Stereo			Bridge-Mono
	8 Ohm	4 Ohm	2 Ohm	8 Ohm	4 Ohm
XTi 4000	650W	1200W	1600W*	2400W	3200W*
XTi 2000	475W	800W	1000W*	1600W	2000W*
XTi 1000	275W	500W	700W*	1000W	1400W*
*With 1% THD.

Voltage Gain at 1kHz, 8 ohm rated output:

XTi 1000: 30.5 dB
XTi 2000: 32.9 dB
XTi 4000: 34.2 dB

Frequency Response: +0/-1 dB from 20 Hz to 20 kHz at 1 watt into 4 ohms.

Load Impedance: Safe with all types of loads. Rated for 2 to 8 ohms in Stereo mode, 4 to 16 ohms in Bridge-Mono mode.

Sensitivity: 1.4V

Signal to Noise Ratio (below rated 1 kHz power at 8 ohms): 100 dB (A weighted).

Damping Factor: Better than 500 from 20 Hz to 400 Hz.

Crosstalk: > 70 dB below rated power, 20 Hz to 1 kHz.

Input Stage: Input is electronically balanced and employs precision 1% resistors.

Input Impedance (nominal): 20 k ohms, balanced;10 k ohms, unbalanced.

Maximum Input Signal: +22 dBu typical.

AC Line Voltage and Frequency Configurations Available: 100V, 120V, 220-240V
50/60 Hz.

AC Line Current:

XTi 1000: 6.5A
XTi 2000: 6.9A
XTi 4000: 8.0A

At Idle: Draws no more than 90 watts.

Operating Temperature: 0° C to 40° C at 95% relative humidity (non-condensing).

DSP Section

EQ: 4-band paragraphic per channel, boost/cut ±12 dB. Also adjustable high and low shelving filters.

Filters: Highpass and lowpass per channel. Butterworth 6/12/18/24 dB per octave. High and low shelving filters, one per channel.

Delay: For signal alignment of driver; 50 mS total delay.

Subharmonic Synthesizer: Adds low-frequency content.

Output Limiter: Prevents clipping.

Presets: 10 user speaker presets.

Front Panel Controls and Indicators

Level: Detented rotary level control, one per channel.

Power Switch: On/off switch applies AC power to the amplifier.

Sel/Prev/Next Buttons: Three buttons near the LCD screen are used to access menu items.

LCD Screen: Backlit liquid crystal display shows speaker presets.

Signal Indicator: Green LED, one per channel, flashes when a very low-level signal is present at input. May be used for troubleshooting cable runs.

–10 Indicator: Green LED flashes when output signal exceeds –10 dB below clip.

–20 Indicator: Green LED flashes when output signal level exceeds –20 dB below clip.

Ready Indicator: Green LED, one per channel, illuminates when the amplifier is ready to produce audio.

Clip Indicator: Red LED, one per channel, turns on at the threshold of audible distortion.

Temp/Fault Indicator: Red LED, one per channel, illuminates under Fault or excessive temperature conditions.

Power Indicator: Blue LED illuminates when the amplifier has been turned on and has power.

Rear Panel Controls and Connectors

AC Line Connector: NEMA 5-15P (15A).

Input Connector: XLR, one per channel.

Link/Out Connector: Loop-thru signal from input connector for linking to another amplifier, one per channel.

Output Connectors: Two Neutrik® Speakon® NL4MP (mates with NL4FC) output connectors. Channel-1 Speakon® is wired with Ch. 1 and Ch. 2 outputs for use with optional single 4-conductor cable. Two binding post outputs (in parallel with Speakon® connectors).

HiQnet USB Connector: Type B, connects to a HiQnet network.

Protection

XTi-Series amplifiers are protected against shorted, open or mismatched loads; overloaded power supplies; excessive temperature; chain destruction phenomena; excessive output current, input overload damage; and high-frequency blowups. They also protect loudspeakers from input/output DC, large or dangerous DC offsets and turn-on/turn-off transients.

Construction

Chassis: Steel.

Cooling: Proportional speed fan with front-to-rear airflow.

Dimensions: EIA Standard 19-in. rack mount width (EIA RS-310-B), 3.5 in. (8.9 cm) high and 12.25 in. (31.11 cm) deep behind mounting surface.

Net Weight:
18.5 lb (8.4 kg)

Shipping Weight:
21.5 lb (9.8 kg)

The XTi Series of Crown amplifiers are professional tools designed and built for portable PA applications. The series includes three models which are identical except for output power: XTi 1000, 2000 and 4000. All are rugged and lightweight, and offer unmatched value in their class.

XTi-Series amplifiers feature an LCD screen with DSP speaker presets for crossover frequencies, EQ, limiting, delay, and a subharmonic synthesizer. Other features include a switch-mode universal power supply, useful function indicators, proportional-speed fan assisted cooling, XLR inputs, Speakon® and binding-post outputs, short-circuit protection and more.

With their powerful, reliable performance, XTi-Series amps easily handle 2-ohm loads and are capable of chest-thumping lows. Plus, your investment in an XTi-Series amplifier is backed by Crown’s Three-Year, No-Fault, Fully Transferable Warranty.

Specifications

Output Power (1 kHz, 0.5% THD)
	Stereo			Bridge-Mono
	8 Ohm	4 Ohm	2 Ohm	8 Ohm	4 Ohm
XTi 4000	650W	1200W	1600W*	2400W	3200W*
XTi 2000	475W	800W	1000W*	1600W	2000W*
XTi 1000	275W	500W	700W*	1000W	1400W*
*With 1% THD.

Voltage Gain at 1kHz, 8 ohm rated output:

XTi 1000: 30.5 dB
XTi 2000: 32.9 dB
XTi 4000: 34.2 dB

Frequency Response: +0/-1 dB from 20 Hz to 20 kHz at 1 watt into 4 ohms.

Load Impedance: Safe with all types of loads. Rated for 2 to 8 ohms in Stereo mode, 4 to 16 ohms in Bridge-Mono mode.

Sensitivity: 1.4V

Signal to Noise Ratio (below rated 1 kHz power at 8 ohms): 100 dB (A weighted).

Damping Factor: Better than 500 from 20 Hz to 400 Hz.

Crosstalk: > 70 dB below rated power, 20 Hz to 1 kHz.

Input Stage: Input is electronically balanced and employs precision 1% resistors.

Input Impedance (nominal): 20 k ohms, balanced;10 k ohms, unbalanced.

Maximum Input Signal: +22 dBu typical.

AC Line Voltage and Frequency Configurations Available: 100V, 120V, 220-240V
50/60 Hz.

AC Line Current:

XTi 1000: 6.5A
XTi 2000: 6.9A
XTi 4000: 8.0A

At Idle: Draws no more than 90 watts.

Operating Temperature: 0° C to 40° C at 95% relative humidity (non-condensing).

DSP Section

EQ: 4-band paragraphic per channel, boost/cut ±12 dB. Also adjustable high and low shelving filters.

Filters: Highpass and lowpass per channel. Butterworth 6/12/18/24 dB per octave. High and low shelving filters, one per channel.

Delay: For signal alignment of driver; 50 mS total delay.

Subharmonic Synthesizer: Adds low-frequency content.

Output Limiter: Prevents clipping.

Presets: 10 user speaker presets.

Front Panel Controls and Indicators

Level: Detented rotary level control, one per channel.

Power Switch: On/off switch applies AC power to the amplifier.

Sel/Prev/Next Buttons: Three buttons near the LCD screen are used to access menu items.

LCD Screen: Backlit liquid crystal display shows speaker presets.

Signal Indicator: Green LED, one per channel, flashes when a very low-level signal is present at input. May be used for troubleshooting cable runs.

–10 Indicator: Green LED flashes when output signal exceeds –10 dB below clip.

–20 Indicator: Green LED flashes when output signal level exceeds –20 dB below clip.

Ready Indicator: Green LED, one per channel, illuminates when the amplifier is ready to produce audio.

Clip Indicator: Red LED, one per channel, turns on at the threshold of audible distortion.

Temp/Fault Indicator: Red LED, one per channel, illuminates under Fault or excessive temperature conditions.

Power Indicator: Blue LED illuminates when the amplifier has been turned on and has power.

Rear Panel Controls and Connectors

AC Line Connector: NEMA 5-15P (15A).

Input Connector: XLR, one per channel.

Link/Out Connector: Loop-thru signal from input connector for linking to another amplifier, one per channel.

Output Connectors: Two Neutrik® Speakon® NL4MP (mates with NL4FC) output connectors. Channel-1 Speakon® is wired with Ch. 1 and Ch. 2 outputs for use with optional single 4-conductor cable. Two binding post outputs (in parallel with Speakon® connectors).

HiQnet USB Connector: Type B, connects to a HiQnet network.

Protection

XTi-Series amplifiers are protected against shorted, open or mismatched loads; overloaded power supplies; excessive temperature; chain destruction phenomena; excessive output current, input overload damage; and high-frequency blowups. They also protect loudspeakers from input/output DC, large or dangerous DC offsets and turn-on/turn-off transients.

Construction

Chassis: Steel.

Cooling: Proportional speed fan with front-to-rear airflow.

Dimensions: EIA Standard 19-in. rack mount width (EIA RS-310-B), 3.5 in. (8.9 cm) high and 12.25 in. (31.11 cm) deep behind mounting surface.

Net Weight:
18.5 lb (8.4 kg)

Shipping Weight:
21.5 lb (9.8 kg)

The Crown I-Tech Series offers amazing power, light weight and ease of use for touring sound and installed sound applications. Onboard DSP provides a wide array of signal processing, greatly reducing the need for rack components and rack wiring. Onboard DSP features 24-bit, 96 kHz A/D and D/A converters. All models are compatible with the HiQnet Network and TCP/IQ networking. Digital audio and HiQnet/IQ control signals connect to the amp via a single CobraNet cable in optional CN models, coming soon.

Pushbutton DSP presets simplify the setup for various loudspeaker arrays. The Global Power Supply works anywhere in the world, and offers PFC (Power Factor Correction). It is a switching power supply for reduced weight.

I-Tech amplifiers have the highest output voltage in the industry (200V peak), which provides clean transient peaks. The 3rd-generation patented Class-I (BCA®) circuitry couples power efficiently to the load and allows low AC current drain. A front-panel control screen shows advanced diagnostics and status information.

$ CALL FOR PRICING

Specifications

Power Output
	Stereo			Mono
	8 Ohm	4 Ohm	2 Ohm	8 Ohm	4 Ohm
I-T8000	2100W	4000W	3500W	8000W	7000W
I-T6000	1500W	3000W	2500W	6000W	5000W
I-T4000	1250W	2000W	1800W	4000W	3600W
Guaranteed minimum power output per channel, 20 Hz to 20 kHz, <0.35% true THD, both channels driven. Rated power not part-tolerance dependent.

Performance

Guaranteed Minimum Power:
See power grid.

Frequency Response (at 1 watt, 20 Hz - 20 kHz): 0.25dB.

Signal to Noise Ratio below rated 8-ohm power, A-weighted:
>105 dB

Total Harmonic Distortion (THD) at full rated power: < 0.35%.

Damping Factor (20 Hz to 100 Hz):
> 5000.

Common Mode Rejection (CMR) (20 Hz to 1 kHz): > 50 dB.

DC Output Offset: < 3 mV.

Input Impedance (nominal):
20 kilohms balanced, 10 kilohms unbalanced.

Maximum Input Level: +15 dBu or +22 dBu, depending on input sensitivity.

Latency (analog, digital inputs): 1.13 mS analog, 1.81 mS digital (96 kHz).

A/D, D/A Converters: 24-bit, 96-kHz Cirrus Logic.

Digital Input: AES/EBU, 16-24 bit, 32-48 kHz. Onboard sample rate converter. Optional CobraNet input coming soon.

Network: Onboard TCP/IQ, compatible with standard 100-Mb Ethernet hardware.

DSP: 24-bit conversion with 32-bit, floating-point DSP processing. Bypass mode available. Has 64 assignable filters with 9 different filter types. Includes all-pass filters, over 2 seconds of delay available per channel, and dual uncorrelated-noise and sine-wave generators.

Load Supervision: Monitors the average impedance on the output of the amplifier. If the impedance falls outside the specified high/low limits, this function alerts the user via the front panel display, and via the IQwic software when amp is on an IQ Network.

Error Reporting: Reports clip errors, thermal errors, fault conditions and load monitoring errors for each channel via the front panel display and via IQwic software when amp is on an IQ Network.

Attenuators: Speed sensitive, continuously variable rotary encoder, 0.5 dB steps, range 0 to 100 dB.

Load Impedance
(Note: Safe with all types of loads):
Stereo: 1/2/4/8/16 ohms.
Bridge Mono: 2/4/8 ohms.

Input Sensitivity: Adjustable in 0.1V steps from 1.4V to 9.7V.

Voltage Gain (referenced to 8 ohm rated output):
I-T4000: 37.0 dB to 20.3 dB
I-T6000: 37.9 dB to 21.0 dB
I-T8000: 39.3 dB to 22.5 dB 

Required AC Mains: Universal AC input, 100-240 VAC, 50/60 Hz (15%).

Maximum AC mains voltage: 277 VAC.

AC Line Connector: Five cordsets supplied with amplifier (USA, UK, Europe, Australia, India).

Front Panel Controls and Indicators

Bridge Mode Indicator: Yellow LED
illuminates when the amplifier is set to Bridge-Mono mode.

Ready Indicator: Green LED, one per channel, illuminates when the channel is initialized and ready to produce audio output. Indicator is off when the amplifier is in standby mode via the IQ system.

Signal Indicators: Three green LEDs per channel indicate the amplifiers input and output signal levels.

Signal: Input signal is above 40 dBu.
20 dB: amplifier output is 20 dB below clipping.
10 dB: amplifier output is 10 dB below clipping.

Clip Indicator: Red LED, one per channel, illuminates when the channels output signal reaches the onset of audible clipping.

Thermal Indicator: Red LED, one per channel, illuminates when the channel has shut down, or is very near shutting down, due to thermal stress or overload.

Fault Indicator: Red LED, one per channel, flashes when the amplifier output channel has stopped operating.

Data Indicator: Yellow LED indicates IQ Network data activity

Power Indicator: Blue LED indicates amplifier has been turned on and AC power is available.

AC Mains Present Indicator: Green indicator built into power switch indicates AC power is present at the power cord and the amplifier circuit breaker is in the "on" position.

Glowing Blue Screen and Controls: These let the user adjust the amplifiers attenuation and muting, configure the amp, set up error monitoring (such as temperature and load supervision), and recall DSP presets. The presets allow the user to quickly reconfigure the amp for various applications.

LCD Control Screen: Integrated LCD with white LED backlight, controls amplifier setup and operation. Normal mode: Attenuation in 0.5 dB steps, Mute/Unmute, Front Panel Lockout. 

Basic Menu: LCD Contrast, CH1 Sensitivity, CH2 Sensitivity, Speaker Preset, Dual/Bridge mode, Input Y. 

Advanced Menu: Attenuator Limits, Attenuator Link, Clip Limiter, Peak Voltage Limiter, Average Power Limiter, Pink Noise Generator, AES/EBU Input Trim, Input Source, Maximum Analog Input, Meter Display Type. 

Monitor Menu: Speaker Load, Thermal %, AC Voltage, Operating Time, Firmware, Manufacturing Info, Networking, Thermal Errors, Clip Errors, Low Limit Load Errors, High Limit Load Errors, Line Voltage Errors. 

MENU/EXIT Button: Menu enters the Menu screen. Exit leaves the Menu.

NEXT Button: Selects the next item in the Menu.

PREV Button: Selects the previous item in the Menu.

Level Controls (encoders):
These two knobs affect the Channel-1 and Channel-2 output levels. They also select Menu items and adjust parameter values that are displayed on the LCD control screen.

Power Switch: Push-on / push-off switch.

Back Panel Controls, Indicators and Connectors

Power Cord Connector: Standard 20 amp IEC inlet.

Switch/Circuit Breaker: Resets the circuit breaker that protects the power supply.