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Power Amplifier
QSC CX902
$2,806

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2-Channel Low-Z Power Amplifier
CX902
Express Checkout

Description

Exclusive PowerLight switch-mode power supply technology for high performance and compact size
Custom integrated security cover for tamper proof installations
Variable speed fan for low noise
1-dB detented gain controls for fast and accurate gain settings
Active inrush limiting eliminates AC inrush current, removing the need for expensive power sequencers
XLR and detachable Euro style input connectors
HD15 DataPort connector for Q-SYS networked control and monitoring
Dip switch control for clip limiters, high pass filters, bridge mono and parallel operation
Selectable high pass filters protect speakers and prevent speaker transformer saturation with minimal effect on program material (33 Hz or 75 Hz)
Comprehensive front panel indicators including signal, clip, protect and QSC's exclusive bridge mono and parallel input LEDs
Barrier strip output connector
Comprehensive protection circuitry including DC, infrasonic, thermal overload and short circuit protection
Class H complementary bipolar output circuitry for high efficiency
Optional external transformer accessory pack for isolated 25-, 70-, and 100-volt outputs
Compact size - only 2 rack units high and 14" deep for reduced rack cost and floor space
Lightweight - weighs only 21 pounds (9.5 kg) for easier racking and shipping
3-year warranty plus optional 3-year extended service contract
All CX Series amplifiers meet the European Union's 2006 RoHS directive to restrict the use of hazardous materials used in electronic devices.

Technical Specifications

SPECIFICATIONS CX302 CX502 CX702 CX902 CX1102 CX302V CX602V CX1202V
  POWER PER CHANNEL, STEREO MODE, Both Channels Driven
8Ω, 20 Hz–20 kHz, 0.05% THD 200 W 300 W 425 W 550 W 700 W - 550 W 700 W
4Ω, 20 Hz–20 kHz, 0.05% THD 325 W 500 W 700 W 900 W 1100 W - - 1100 W
2Ω, 1 kHz, 1% THD 600 W 800 W 1200 W 1500 W 1700 W - - -
70V, 20 Hz–20 kHz, 0.05% THD 400 W
with IT-42*
- - 400 W 800 W 200 W 400 W 800 W
70 V, 1 kHz, 0.05% THD - - - 440 W 1000 W 250 W 440 W 1000 W
70 V, 1 kHz, 1% THD - - - 600 W 1200 W 300 W 600 W 1200 W
  POWER, BRIDGED MONO MODE
16Ω, 20 Hz–20 kHz, 0.1% THD 400 W 600 W 850 W 1100 W 1400 W - 1100 W 1400 W
8Ω, 20 Hz–20 kHz, 0.1% THD 700 W 1100 W 1500 W 2000 W 2200 W - - 2200 W
4Ω, 1 kHz, 1% THD 1200 W 1600 W 2400 W 3000 W 3400 W - - -
140 V, 20 Hz–20 kHz, 0.05% THD - - - 800 W 1600 W 400 W 800 W 1600 W
140 V, 1 kHz, 0.05% THD - - - 880 W 2000 W 500 W 880 W 2000 W
140 V, 1 kHz, 1% THD - - - 1200 W 2400 W 600 W 1200 W 2400 W
Noise, 20 Hz–20 kHz -107 dB -107 dB -106 dB -106 dB -106 dB -106 dB -106 dB -106 dB
Input Sensitivity @ 8 ohms 1.26 Vrms 1.23 Vrms 1.16 Vrms 1.17 Vrms 1.35 Vrms 1.26 Vrms 1.26 Vrms 1.26 Vrms
Maximum Voltage Gain 30 dB 32 dB 34 dB 35 dB 35 dB 35 dB 35 dB 35 dB
Output Circuitry Class AB+B AB+B H, 2-tier H, 2-tier H, 2-tier AB+B AB+B H, 2-tier
  ALL MODELS
Distortion (SMPTE-IM) Less than 0.02%
Distortion (Typical)
20 Hz–20 kHz: 10 dB below rated power
1.0 kHz and below: full rated power

Less than 0.01% THD
Less than 0.01% THD
Frequency Response 20 Hz–20 kHz, ±0.2 dB
Damping Factor
Greater than 500
Input Impedance
6 kΩ unbalanced, 12 kΩ balanced
Input Clipping
10 V rms (+22 dBu)
Cooling
Variable-speed fan, rear-to-front air flow
Connectors, each channel

Input: 3-pin XLR & 3-pin detachable terminal blocks (1 each per channel)
Output: Safety-shrouded barrier strip
Amplifier Protection
Full short circuit, open circuit, thermal, ultrasonic, and RF protection.
Stable into reactive or mismatched loads.
Load Protection
On/off muting, DC-fault power supply shutdown
Dimensions (HWD) inches
3.5 x 19 x 14 / 2RU
Dimensions (HWD) mm
89 x 483 x 356 / 2RU
Weight
21 lb (9.5 kg) net
27 lb (12.3 kg) shipping
* An isolation transformer (the IT-42) is available for the CX302, which converts its low-impedance outputs to isolated 400 W per channel constant-voltage outputs.

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