Qsc - Dcaspec 电路图.pdf

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1、DCA Features Active Inrush Limitingwont blow circuit breakers at turn-on (a QSC cinema exclusive!) Both speaker and monitor panel outputs (a QSC cinema exclusive!) Exclusive PowerWave power supply for great bass (a QSC cinema exclusive!) A hum-free noise floor and ultra low distortion Optional cross

2、over modules for bi-amp,tri-amp and subwoofer applications Only 3.5 inches high,even the most powerful systems can be built with only one rack DataPort interface for DCMDigital Cinema Monitor (a QSC cinema exclusive!) Patented Output Averaging short circuit protection 14”deepworks with standard dept

3、h racks for lower cost and less floor space Only 21 lbs for easier racking and shippingno need to remove amps from pre-wired systems before shipping Gain control security cover protects amp from misadjustment Variable-speed fan cooling and back-to-front air flow Neutrik Speakon (2 channel only) and

4、safety-shrouded barrier strip output connectors LED indicators for metering,status,and operating mode (a QSC cinema exclusive!) P R O F E S S I O N A L P O W E R A M P L I F I E R S D I G I T A L C I N E M A P R O D U C T S Crystal-clear, seat-shaking cinema sound is here with our new DCA Series Dig

5、ital Cinema Amplifiers.Seven 21-pound (9.5 kg), two-rack-space models offer power points from 200 to 1700 watts per channel.With QSCs exclusive PowerWave TM switching technology youll hear ultra-powerful bass and superior highs in every action scene.In addition to their superior performance weve pac

6、ked these amps with useful features designed specifically for the cinema market. 1675 MacArthur Boulevard Costa Mesa, CA 92626 Ph: 800/854-4079 or 714/957-7100 Fax: 714/754-6174 With PowerWave technology, DCA amplifiers take your sound- tracks to a whole new level. Not only does it give your music b

7、igger bass and cleaner highs, PowerWave also cuts wasted heat and boosts reliability.PowerWave is a switching power supply that provides ample current to the audio power circuitry by charging the supply rails 230,000 times a second through an ultra-low impedance circuit.So unlike high-powered amps w

8、ith conventional supplies,the audio signal is never starved prematurely,but remains crisp and clean. DCA Series amps also boast a set of useful features such as individually selectable clip limiters and subsonic filters; and stereo, parallel, and bridged mono operation.The amps feature XLR, 1/4 TRS

9、(2 channel only),and detachable terminal block input-connectors,and outputs are both Neutrik Speakon (2 channel only) and safety-shrouded barrier strips. Seven models make it easy to get the exact performance you need. For instance, the DCA 1222 is ideal for surround applications featuring extra-low

10、 impedance capability to drive 1.6 ohms per channel.The DCA 3422 with 1250 watts per channel at 4 ohms is ideal for powering subwoofer systems. 3 year warranty plus optional 3 year extended service contract! The Power Behind the Pictures. Watts per channelModel 4-Channel DCA842 1222 215375600 1622 3

11、50600800 2422 4758251200 3022 62510501500 3422 80012501700 1644 250400nr 1824 160250450 RadioFans.CN 收音机爱 好者资料库 1675 MacArthur Boulevard Costa Mesa, CA 92626 Ph: 800/854-4079 or 714/957-7100 Fax: 714/754-6174 DC A SPECIFIC ATIONS 200W8 ohmsFTC20 Hz20 kHz 0.03% THD 4 ohmsFTC20 Hz20 kHz 0.05% THD 4 oh

12、msEIA1 kHz 1% THD 2 ohmsEIA 1 kHz 1% THD Signal to Noise (20 Hz20 kHz) Input Sensitivity 8 ohms Input Sensitivity 4 ohms 325W 600W800W1200W1500W1700W 500W700W900W1100W 375W600W825W1050W1250W 300W425W550W700W 215W8 ohms EIA1 kHz 1% THD350W475W625W800W DCA 2422 DCA 3022 Stereo Mode Bridge Mono Mode 4

13、ohmsEIA1 kHz 1% THD 16 ohms FTC20 Hz20 kHz 0.1% THD 8 ohms FTC20 Hz20 kHz 0.1% THD 400W 700W1100W1500W2000W2200W 1200W1600W2400W3000W3400W 600W850W1100W1400W DCA 1644 DCA 1824DCA 3422 -106 dB -107 dB -108 dB -107 dB than 0.01% than 0.01% than 0.02% than 0.02% than 0.02% NR 400W 250W 800W NR 500W tha

14、n 0.01% 450W 250W 160W 500W 900W 320W than 0.01% DCA 1222 Distortion (SMPTE-IM) Distortion (typical) Frequency Response Damping Factor (1 kHz and below) Input Impedance Input Clipping Cooling Connectors (each channel) Controls Indicators Amplifier Protection Load Protection Dimensions Voltage Gain 2

15、0 Hz-20 kHz:10 dB below rated powerLess than 0.01% THD, 4 inputs parallel or stereo; bridge mode All modelsAll models Continuous Average Output Power Per Channel Continuous Average Output Power * 120 VAC, both channels driven;multiply current by 0.5 for 230V units FTC:all channels driven EIA:one cha

16、nnel driven PWR-ON:Green LEDLEVEL -20 dB:Green LED (1 per channel) BRIDGED:Yellow LEDLEVEL -10 dB:Green LED (1 per channel) PARALLEL INPUTS:Yellow LEDCLIP/PROT:Red LED (1 per channel) SIGNAL -35dB:Green LED (1 per channel) 30 22 2Channels 2Impedance at Rated Power 30 00Watts Total Rated Power MODEL NUMBERING SYSTEM 1.0 kHz and below:full rated powerLess than 0.01% THD, 4 & 8 DCA 1622 RadioFans.CN 收音机爱 好者资料库