QSC CX254 Specifications

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QSC CX254 Specifications Manual pdf 2 page image

CX 4-Channel Specificationsqscaudio.com1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/957-7100 • Fax: 714/754-6174CX 4-channel Spec Sheet - 06/04/08Specifications subject to change without notice.CX254 CX404 CX204VStereo Mode (all channels driven) Continuous average output power per channel8Ω / 20 Hz – 20 kHz / 0.05% THD 170 W 250 W −4Ω / 20 Hz – 20 kHz / 0.05% THD 250 W 400 W (0.1% THD, 1 kHz) −2Ω / 1 kHZ / 1% THD 450 W − −70V / 20 Hz – 20 kHz / 0.05% THD − − 200 W70V / 1 kHz / 0.05% THD − − 220 W70V / 1 kHz / 1% THD − − 300 WBridge-Mono Mode Bridge-mono mode operation16Ω / 20 Hz – 20 kHz / 0.1% THD 340 W 500 W −8Ω / 20 Hz – 20 kHz / 0.1% THD 500 W 800 W (0.1% THD, 1 kHz) −4Ω / 1 kHz / 1% THD 900 W − −140V / 20 Hz – 20 kHz / 0.1% THD − − 400 W140V / 1 kHz / 0.05% THD − − 440 W140V / 1 kHz / 1% THD − − 600 WNoise (20 Hz - 20 kHz) -106 dB -106 dB -105 dBInput Sensitivity 1.22 Vrms 1.22 Vrms 1.26 VrmsGain 29 dB at 8Ω 31 dB at 8Ω 35 db at 70.7VInput Clipping 10 Vrms (+22 dBu) 10 Vrms (+22 dBu) 10 Vrms (+22 dBu)Output Circuitry Class AB+B Class AB+B Class AB+BDistortion (SMPTE-IM) < 0.01% < 0.01% < 0.02%Distortion (typical)20 Hz – 20 kHz: 10 dB below rated power < 0.01% THD1.0 kHz and below: full rated power < 0.01% THDFrequency Response 20 Hz - 20 kHz, ± 0.2 dB | 8 Hz - 50 kHz, + 0/-3 dBDamping Factor > 500 (1 kHz and below)Input Impedance 6k ohms unbalanced, 12k ohms balancedCooling Variable-speed fan / rear-to-front air flow through tunnel heat sinkConnectors Input: 3 position Euro style detachable barrier block, CH 1, 2, 3 & 4 DataPort: HD-15 Connector, Ch 1+2, Ch 3+4Output: Six-position barrier strip with dual channel and bridge mono connections, Ch 1+2, Ch 3+4Controls Front: AC swith, Ch 1, 2, 3 & 4 gain knobsRear: DIP switch for Ch 1, 2, 3 & 4, clip limiter on/off, LF filter on/off, LF filter freq select 33 Hz or 75 HzCX254 and CX 404: 50 Hz or 75 Hz CX204V: inputs parallel or stereo, bridge modeIndicators Parallel Inputs: Yellow LED / Bridged: Yellow LED/ Power-on: Green LEDClip-Prot: Red LED / Level -10dB: Green LED / Level -20dB: Green LED / Signal -35dB: Green LED (1 per channel)Amplifier Protection Full short circuit, open circuit, thermal, ultrasonic, and RF protection. Stable into reactive or mismatched loadsLoad Protection On/off muting, DC-fault power supply shutdownDimensions (HWD) 3.5" (8.9 cm) 2 RU x 19" (48.3 cm) rack mounting x 14" (35.6 cm) from front mounting railsWeight - Net / Shipping 21 lb (9.5 kg) / 27 lb (12.3 kg)Power Requirements 100, 120, 230 VAC, 50 – 60 Hz (configured at factory)120V Current Consumption* Idle 0.7 A 0.7 A 0.8 A1/8 power pink noise 8Ω 5.8 A 8.1 A −4Ω 9.2 A 12.4 A −2Ω 14.3 A NR −70V − – 8.3 A1/3 power pink noise 8Ω 8.8 A 12.2 A −4Ω 14.2 A 19.3 A −2Ω 21.7 A NR −70V − − 12.7 A* Multiply currents by 0.5 for 230V units(typical of program materialwith severe clipping)(typical of program material atmaximum unclipped power)QSC, the QSC logo and PowerLight are registered trademarks of QSC Audio Products, LLC in the U.S. Patent and Trademark office and other countries.All other trademarks are the property of their respective owners. Patents may apply or be pending.

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