User manual QSC AUDIO CX254 DATASHEET 06-04-08

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Manual abstract: user guide QSC AUDIO CX254DATASHEET 06-04-08

Detailed instructions for use are in the User's Guide.

[. . . ] [. . . ] Each model is equipped with exclusive QSC PowerLightTM switching power supply technology to virtually eliminate noise and hum. With high-output power, Features · hreemodelsthatrangeinpowerfrom170wattsto450wattsperchannel T · ompactsize­allmodelsonly2RUand14"deepforreducedrackcostandfloorspace C · hannels1&2and3&4bridgeableformaximumflexibility C · ctiveInrushLimitingeliminatesACinrushcurrent, removingtheneedforexpensive A powersequencers · HD15DataPortconnectorforQSControlcomputercontrol · Customintegratedsecuritycoverfortamper-proofinstallations · Variablespeedfanforlownoise · 1dBdetentedgaincontrolsforfastandaccurategainsettings · DetachableEuro-styleinputconnectors · IPswitchcontrolforcliplimiters, high-passfilters, bridge-monoandparalleloperation D · xclusivePowerLightswitch-modepowersupplytechnologyforhighperformanceand E compactsize · electablehigh-passfiltersprotectspeakersandpreventspeakertransformersaturation S withminimaleffectonprogrammaterial(33Hzor75HzonCX254andCX404, 50Hzor 75HzonCX204V) versatile loading options, high-thermal capacity and unmatched reliability, the CX Series is the perfect solution to any permanently installed sound system. CX 4-channel Amplifiers Model CX254 CX404 CX204V *1 70V - - 200 Watts per channel 8 4 170 250 - 250 400** - · omprehensivefrontpanelindicatorsincludingsignal, clip, protectandQSC'sexclusive C bridge-monoandparallelinputLEDs 2 450* - - · Barrierstripoutputconnector · omprehensiveprotectioncircuitryincludingDC, infrasonic, thermaloverloadandshort C circuitprotection · igh-performanceClassAB+Bcomplementarybipolaroutputcircuitry H · ightweight­allmodelsonly21pounds(9. 5kg)foreasierrackingandshipping L · 3-yearwarrantyplusoptional3-yearextendedservicecontract 20 Hz ­ 20 kHz, 0. 05% THD kHz, 1% THD **1 kHz, 0. 1% THD CX 4-Channel CX254 Stereo Mode (all channels driven) 8 / 20 Hz ­ 20 kHz / 0. 05% THD 4 / 20 Hz ­ 20 kHz / 0. 05% THD 2 / 1 kHZ / 1% THD 70V / 20 Hz ­ 20 kHz / 0. 05% THD 70V / 1 kHz / 0. 05% THD 70V / 1 kHz / 1% THD Bridge-Mono Mode 16 / 20 Hz ­ 20 kHz / 0. 1% THD 8 / 20 Hz ­ 20 kHz / 0. 1% THD 4 / 1 kHz / 1% THD 140V / 20 Hz ­ 20 kHz / 0. 1% THD 140V / 1 kHz / 0. 05% THD 140V / 1 kHz / 1% THD Noise (20 Hz - 20 kHz) Input Sensitivity Gain Input Clipping Output Circuitry Distortion (SMPTE-IM) Distortion (typical) 20 Hz ­ 20 kHz: 10 dB below rated power 1. 0 kHz and below: full rated power Frequency Response Damping Factor Input Impedance Cooling Connectors Controls 170 W 250 W 450 W - - - 340 W 500 W 900 W - - - -106 dB 1. 22 Vrms 29 dB at 8 10 Vrms (+22 dBu) Class AB+B < 0. 01% CX404 Continuous average output power per channel 250 W 400 W (0. 1% THD, 1 kHz) - - - - Bridge-mono mode operation 500 W 800 W (0. 1% THD, 1 kHz) - - - - -106 dB 1. 22 Vrms 31 dB at 8 10 Vrms (+22 dBu) Class AB+B < 0. 01% - - - 200 W 220 W 300 W Specifications CX204V - - - 400 W 440 W 600 W -105 dB 1. 26 Vrms 35 db at 70. 7V 10 Vrms (+22 dBu) Class AB+B < 0. 02% Indicators Amplifier Protection Load Protection Dimensions (HWD) Weight - Net / Shipping Power Requirements 120V Current Consumption* 1/8 power pink noise Idle 8 (typical of program material at 4 maximum unclipped power) 2 70V 1/3 power pink noise 8 (typical of program material 4 with severe clipping) 2 70V * Multiply currents by 0. 5 for 230V units < 0. 01% THD < 0. 01% THD 20 Hz - 20 kHz, ± 0. 2 dB | 8 Hz - 50 kHz, + 0/-3 dB > 500 (1 kHz and below) 6k ohms unbalanced, 12k ohms balanced Variable-speed fan / rear-to-front air flow through tunnel heat sink Input: 3 position Euro style detachable barrier block, CH 1, 2, 3 & 4 DataPort: HD-15 Connector, Ch 1+2, Ch 3+4 Output: Six-position barrier strip with dual channel and bridge mono connections, Ch 1+2, Ch 3+4 Front: AC swith, Ch 1, 2, 3 & 4 gain knobs Rear: DIP switch for Ch 1, 2, 3 & 4, clip limiter on/off, LF filter on/off, LF filter freq select 33 Hz or 75 Hz CX254 and CX 404: 50 Hz or 75 Hz CX204V: inputs parallel or stereo, bridge mode Parallel Inputs: Yellow LED / Bridged: Yellow LED/ Power-on: Green LED Clip-Prot: Red LED / Level -10dB: Green LED / Level -20dB: Green LED / Signal -35dB: Green LED (1 per channel) Full short circuit, open circuit, thermal, ultrasonic, and RF protection. Stable into reactive or mismatched loads On/off muting, DC-fault power supply shutdown 3. 5" (8. 9 cm) 2 RU x 19" (48. 3 cm) rack mounting x 14" (35. 6 cm) from front mounting rails 21 lb (9. 5 kg) / 27 lb (12. 3 kg) 100, 120, 230 VAC, 50 ­ 60 Hz (configured at factory) 0. 7 A 0. 7 A 0. 8 A 5. 8 A 8. 1 A - 9. 2 A 12. 4 A - 14. 3 A NR - - ­ 8. 3 A 8. 8 A 12. 2 A - 14. 2 A 19. 3 A - 21. 7 A NR - - - 12. 7 A Specifications subject to change without notice. QSC, the QSC logo and PowerLight are registered trademarks of QSC Audio Products, LLC in the U. S. Patents may apply or be pending. 1675 MacArthur Boulevard · Costa Mesa, CA 92626 · Ph: 800/854-4079 or 714/957-7100 · Fax: 714/754-6174 CX 4-channel Spec Sheet - 06/04/08 qscaudio. com [. . . ] [. . . ]

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