QSC Audio Car Amplifier CX204V User Manual

CX 4-channel  
Professional Power Amplifiers  
CX254 | CX404 | CX204V  
All models include an  
integrated security cover for  
tamper-proof installations  
The 4-channel CX amplifiers give you four  
channels in only two rack spaces, without  
compromising on power. Choose from three  
models, a direct 70 volt model and two low-  
impedance versions. Each model is equipped  
with exclusive QSC PowerLight™ switching  
power supply technology to virtually eliminate  
noise and hum. With high-output power,  
versatileloadingoptions, high-thermalcapacity  
and unmatched reliability, the CX Series is the  
perfect solution to any permanently installed  
sound system.  
Features  
• Three models that range in power from 170 watts to 450 watts per channel  
• Compact size – all models only 2 RU and 14" deep for reduced rack cost and floor space  
• Channels 1&2 and 3&4 bridgeable for maximum flexibility  
• Active Inrush Limiting eliminates AC inrush current, removing the need for expensive  
power sequencers  
• HD15 DataPort connector for QSControl computer control  
• 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  
• Detachable Euro-style input connectors  
• DIP switch control for clip limiters, high-pass filters, bridge-mono and parallel operation  
• Exclusive PowerLight switch-mode power supply technology for high performance and  
compact size  
• Selectable high-pass filters protect speakers and prevent speaker transformer saturation  
with minimal effect on program material (33 Hz or 75 Hz on CX254 and CX404, 50 Hz or  
75 Hz on CX204V)  
CX 4-channel Amplifiers  
• Comprehensive front panel indicators including signal, clip, protect and QSC’s exclusive  
bridge-mono and parallel input LEDs  
Watts per channel  
Model  
CX254  
CX404  
CX204V  
70V  
8Ω  
170  
250  
4Ω  
250  
400**  
2Ω  
450*  
• Barrier strip output connector  
• Comprehensive protection circuitry including DC, infrasonic, thermal overload and short  
circuit protection  
200  
• High-performance Class AB+B complementary bipolar output circuitry  
• Lightweight – all models only 21 pounds (9.5 kg) for easier racking and shipping  
• 3-year warranty plus optional 3-year extended service contract  
20 Hz – 20 kHz, 0.05% THD  
*1 kHz, 1% THD  
**1 kHz, 0.1% THD  

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