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Overview

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.

Introduction
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.

The compact PLX1104 brings the same performance and technology as the rest of the PLX2 Series, plus even greater value, to applications that don't require bridged or 2 ohm operation. Designed to power one or two speakers from each amplifier channel (4 ohm minimum loading), this model offer a simplified feature set while retaining genuine, uncompromised PLX performance and technology. Weighing just 13 pounds (5.9 kg), the "plug-and-play" PLX1104 is perfect for ultra-portable rigs, as well as reference-quality playback.

The compact "04" models (PLX1104, PLX1804) bring the same performance and technology, plus even greater value, to applications that don't require bridged or 2 ohm operation. Designed to power one or two speakers from each amplifier channel (4 ohm minimum loading), these models offer a simplified feature set while retaining genuine, uncompromised PLX performance and technology. Weighing just 13 pounds (5.9 kg) these "plug-and-play" amplifiers are perfect for ultra-portable rigs, as well as reference-quality playback.

Mechanical
PLX2 series amplifiers have the refined, rugged good looks usually associated with high performance racing cars, competition bikes, professional power tools, and high power machinery. A solid, cast-aluminum front panel adds professional style to any rack while also acting as an integral I-beam, rigidly tying the chassis together for years of on-the-road reliability.
Additional mechanical touches such as the side stiffening rails, rear rack ears and cable tie anchor points attest to QSC's years of experience and attention to detail. QSC has even designed the integrated front handles so the amplifier slides into a rack without scraping the installers fingers on the rack sides. The exterior appearance of PLX2 amplifiers conveys what's inside - simply and truly, 13 to 21 pounds of the most advanced professional power amp on the planet.

PowerLight Technology
PowerLight switchmode technology replaces a large, heavy AC transformer (typically 20 lbs. / 9 kg) with a highly efficient and lighter-weight active design. Conventional AC transformers provide 100 or 120 energy pulses per second, the PowerLight supply delivers 190,000 to 230,000 pulses per second. More pulses make it easier to provide on-demand power for the amplifier's output section. The power supply doesn't "sag" so bass notes stay full and powerful while the high end remains crisp and clean.

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.

Features
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.
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.

		PLX1104	PLX1804	PLX1802	PLX2502	PLX3102	PLX3602
Stereo Mode (both channels driven)*
	8Ω FTC 20 Hz – 20 kHz 0.05% THD	310 W	550 W	320 W	425 W	550 W	725 W
	8Ω EIA 1 kHz 0.1% THD	325 W	600 W	330 W	450 W	600 W	775 W
	4Ω FTC 20 Hz – 20 kHz 0.05% THD	500 W	800 W	525 W	675 W	900 W	1100 W
	4Ω EIA 1 kHz 0.1% THD	550 W	900 W	575 W	750 W	1000 W	1250 W
	2Ω EIA 1 kHz 1% THD	−	−	900 W	1250 W	1550 W	1800 W
Bridge-Mono Mode*
	8Ω 20 Hz - 20 kHz 0.1% THD	−	−	1100 W	1400 W	1900 W	2500 W
	8Ω EIA 1 kHz 0.1% THD	−	−	1200 W	1500 W	2100 W	2600 W
	4Ω 1 kHz 1% THD	−	−	1800 W	2500 W	3100 W	3600 W
Signal to Noise (20 Hz - 20 kHz)	-106 dB	-106 dB	-107 dB	-106 dB	-107 dB	-107 dB
Input Sensitivity at 8Ω	1.18 Vrms	1.20 Vrms	1.28 Vrms	1.15 Vrms	1.23 Vrms	1.25 Vrms
Voltage Gain at 8Ω	32.5 dB	35 dB	32 dB	34 dB	35 dB	36 dB
Output Circuitry	Class AB	2-tier Class H	Class AB	2-tier Class H	2-tier Class H	2-tier Class H
Power Requirements (1/8 power, pink noise at 4Ω)	8 A /120V	9.4 A /120V	8.7 A /120V	7.5 A /120V	9.5 A /120V	11.5 A /120V

	04 MODELS	02 MODELS
Distortion (SMPTE-IM)	< 0.02%	< 0.02%
Distortion (typical)
1/8 rated power, 20 Hz – 20 kHz	< 0.02%	< 0.02%
Full rated power, 20 Hz – 20 kHz	< 0.02%	< 0.02%
Damping Factor	> 200	> 500
Input Impedance	10k ohms unbalanced / 20k ohms balanced	10k ohms unbalanced / 20k ohms balanced
Input Clipping	5.5 Vrms (+15 dBu)	11 Vrms (+21 dBu)
Cooling		Variable-speed fan, rear-to-front air flow
Input Connectors, each channel	3-pin XLR and 1/4" TRS balanced, parallel	3-pin XLR and 1/4" TRS balanced, parallel
Output Connectors, each channel	Neutrik NL4 Speakon^® /	Neutrik NL4 Speakon^®and touch-proof binding posts /
	Both channels available on Ch 1 NL4 connector	Both channels available on Ch 1 NL4 connector
Amplifier Protection	Full short circuit, open circuit, thermal,	Full short circuit, open circuit, thermal,
	infrasonic, ultrasonic, and RF protection.	infrasonic, ultrasonic, and RF protection.
	Stable into reactive or mismatched loads	Stable into reactive or mismatched loads
Load Protection	On/off muting,	On/off muting,
	DC-fault power supply shutdown	DC-fault power supply shutdown
Dimensions
Height	3.5" (8.9 cm) - 2 RU	3.5" (8.9 cm) - 2 RU
Width	19" (48.3 cm)	19" (48.3 cm)
Depth-Rack mounting surface to rear	8.95" (22.7 cm)	12.8" (32.6 cm)
- Overall	11" (27.9 cm)	14.875" (37.9 cm)
Weight - Shipping / Net	18 lb (8.2 kg) / 13 lb (5.9 kg)	26 lb (11.8 kg) / 21 lb (9.5 kg)