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DCA 2 Channel Series


DCA 2-Channel

Crystal-clear, breathtaking, seat-shaking cinema sound is here with our DCA Series Digital Cinema Amplifiers. Five 2-channel and two 4-channel models offer power points from 200 to 1700 watts per channel in a two rack, 21 pound amplifier. With QSC's exclusive PowerLight® switching technology you'll hear ultra-powerful bass and superior highs in every scene.

With technology, DCA amplifiers take your soundtracks to a whole new level. Not only does it give your music bigger bass and cleaner highs, PowerLight also cuts wasted heat and boosts reliability. PowerLight 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 with conventional supplies, the audio signal is never starved prematurely, but remains crisp and clean. It virtually eliminates hum and greatly reduces noise, providing a vast dynamic range that can handle the most demanding digital soundtracks without running out of headroom. 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.

FEATURES
  • Active Inrush Limiting - won't blow circuit breakers at turn-on (a QSC cinema exclusive!)
  • Both speaker and monitor panel outputs (a QSC cinema exclusive!)
  • Exclusive PowerLight power supply for great bass (a QSC cinema exclusive!)
  • A hum-free noise floor and ultra low distortion
  • Optional crossover 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 signal processing accessories and the DCM - Digital Cinema Monitor (a QSC cinema exclusive!)
  • Patented Output Averaging™ short circuit protection
  • 14" deep - works with standard depth racks for lower cost and less floor space
  • Only 21 lbs for easier racking and shipping - no 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® and safety-shrouded barrier strip output connectors
  • LED indicators for metering, status, and operating mode (a QSC cinema exclusive!)
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DCA SERIES AMPLIFIERS


DOCUMENTS

DCA 2-Ch Specifications (PDF 200K)
User Manual - EN ES FR DE (PDF 2.3 MB )
User Manual - 简体中文 (PDF 2.9 MB )
Surround EX (PDF 288K)
QSC THX Approved Amplifiers (PDF 128K)
Cinema Accessories for DCA (PDF 410k)

HI-RES IMAGES

Front Panel (4608x1160, 715K)
Rear Panel (4120x1090, 851K)
Front Left (5006x1292, 693K)
Front Right (5106x1382, 761K)

RELATED CINEMA PRODUCTS

DCM Digital Cinema Monitor
DCP Digital Cinema Processor
DCS Digital Cinema Speakers

ACCESSORIES

DataPort Accessories:
DSP-3* | DSP-4* | DPX-4 | DDI-3

Analog Signal Processing
Crossover: UF-2** | UF-3** | XC-3
Low Frequency: LF-3
Subwoofer: SF-3
Equalizer: SEQ-1** | SEQ-2**

Transformers:
70-Volt Output: OT-300a | OT600
Input: XF-1**

Limiters/Attenuators:
SPL-1**

*Remote Mounting only, DPX-2 and
DPX-4 Recommended

**(Requires BSC-3 or BSC-5 BusCard)

RoHS Compliant
RoHS Compliant


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SPECIFICATIONS DCA 1222 DCA 1622 DCA 2422 DCA 3022 DCA 3422
  STEREO MODE, Both Channels Driven
8 ohms, 20Hz-20kHz, 0.03% THD 200W 300W 425W 550W 700W
4 ohms 20 Hz-20 kHz 0.05% THD 325W 500W 700W 900W 1100W
EIA: 1kHz,1% THD @
  8 ohms/Ch
  4 ohms/Ch
  2 ohms/Ch
215W
375W
600W
350W
600W
800W
475W
825W
1200W
625W
1050W
1500W
800W
1250W
1700W
  BRIDGED MONO MODE
16 ohms, 20Hz-20kHz, 0.1% THD 400W 600W 850W 1100W 1400W
8 ohms, 20Hz-20kHz, 0.1% THD 700W 1100W 1500W 2000W 2200W
4 ohms, 1kHz, 1% THD 1200W 1600W 2400W 3000W 3400W
Signal to Noise
20Hz-20kHz, unweighted		 <-106 dB <-107 dB <-108 dB <-107 dB <-107 dB
Input Sensitivity
Full Rated Power @ 8 ohms		 1.0Vrms
+2.2dBu		 1.2Vrms
+3.9dBu		 1.5Vrms
+5.5dBu		 1.7Vrms
+6.8dBu		 1.9Vrms
+7.8dBu
Input Sensitivity
Full Rated Power @ 4 ohms		 0.9Vrms
+1.3dBu		 1.1Vrms
+3.2dBu		 1.3Vrms
+4.6dBu		 1.5Vrms
+5.7dBu		 1.7Vrms
+6.8dBu
Output Circuitry Class Type AB AB 2-Step H 2-Step H 2-Step H
Distortion (SMPTE-IM) < 0.01% < 0.01% < 0.02% < 0.02% < 0.02%
  ALL MODELS
Distortion (Typical)
   20Hz-20kHz: 10 dB below rated power
   1.0kHz and below: full rated power
Less than 0.01% THD @ 8 & 4 ohms
Less than 0.01% THD @ 8 & 4 ohms
Frequency Response
   (LF filter switched off)		 20Hz-20kHz, ± 0.2 dB
8Hz-50kHz, + 0/-3 dB
Damping Factor 1 kHz and below
Greater than 500
Input Impedance
10k ohms unbalanced, 20k ohms balanced
Input Clipping
10Vrms (+22 dB)
Cooling
Variable-speed fan, rear-to-front air flow
Connectors, each channel
Input: 1/4" TRS, 3-pin XLR & 3-pin detachable terminal block
Output: Neutrik Speakon® and safety-shrouded barrier strip, including Monitor output
Voltage Gain at 8 ohms
40x (32 dB)
Controls
Front: AC switch, Ch. 1 and Ch. 1 recessed gain knobs
Rear: DIP switch (Clip Limiter On/Off, each channel; LF Filter On/Off, each channel; LF Filter Freq select 30 or 50 Hz, each channel; Inputs Parallel or Stereo; Bridge Mode)
Indicators
1 each per channel:
CLIP/PROT Red LED
LEVEL -10 dB Green LED
LEVEL -20 dB Green LED
SIGNAL -35 dB Green LED
BRIDGED Yellow LED
PARALLEL INPUTS Yellow LED
POWER Green LED
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
19" (48.3 cm) rack mounting, 3.5" (8.9 cm) tall (2 rack spaces),
14" (35.6 cm) deep (from front mounting rails)
Weight
21 lb (9.5 kg) net
Optional Accessories
Download the Cinema Accessories for DCA Amps User Manual (PDF 410k)
XC-3 Cinema Crossover, for bi-amp applications with all commonly used cinema speakers
SF-3 Subwoofer Filter, an adjustable highpass filter for subwoofers
LF-3 Low Frequency Filter, used with the XC-3 for tri-amp applications

CURRENT CONSUMPTION DCA 1222 DCA 1622 DCA 2422 DCA 3022 DCA 3422
Idle current
(no audio program material)		 0.8A 0.9A 0.9A 0.9A 0.9A
1/8 Power (Pink Noise)
(typical of program material
at maximum unclipped or rarely clipping power)		 8 ohms
4 ohms
2 ohms
 3.8A
6.0A
9.6A
 5.6A
9.0A
14.0A
 5.0A
7.9A
11.8A
 6.0A
9.5A
14.0A
 7.6A
11.6A
16.6A
1/3 Power (Pink Noise)
(typical of program material with severe clipping)		 8 ohms
4 ohms
2 ohms
 5.4A
8.9A
14.3A
 8.0A
13.3A
21.0A
 8.4A
13.5A
22.0A
 11.0A
17.0A
27.0A
 13.1A
20.0A
30.4A
Note: values are for 110VAC; multiply values by 0.5 for 230V units

THERMAL LOSSES (ALL MODELS)
  Idle 1/8 Power
(pink noise)		 1/3 Power
(pink noise)		 Full Power (sine)
Model Load BTU/hr kcal/hr BTU/hr kcal/hr BTU/hr kcal/hr BTU/hr kcal/hr
DCA1222 8 ohms + 8 ohms
4 ohms + 4 ohms
2 ohms + 2 ohms 		200
200
200 		50
50
50 		565
995
1740		 145
250
440		 720
1245
2255
 180
315
570
 715
1295
2425
 180
325
610
DCA1622 8 ohms + 8 ohms
4 ohms + 4 ohms
2 ohms + 2 ohms
 165
165
165
 40
40
40
 910
1570
2560
 230
395
645
 1130
1945
3470
 285
490
875
 1090
1875
3585
 275
475
905
DCA2422 8 ohms + 8 ohms
4 ohms + 4 ohms
2 ohms + 2 ohms
 200
200
200
 50
50
50
 790
1310
2255
 200
330
570
 1080
1910
3190
 275
480
805
 1245
2320
4610
 315
585
1160
DCA3022 8 ohms + 8 ohms
4 ohms + 4 ohms
2 ohms + 2 ohms
 220
220
220		 55
55
55
 900
1525
2305		 225
385
580		 1415
2560
4265		 355
645
1075		 1705
3070
5835		 430
775
1470
DCA3422 8 ohms + 8 ohms
4 ohms + 4 ohms
2 ohms + 2 ohms
 225
225
225
 57
57
57
 1195
2135
3975
 300
540
1000
 1760
2335
5210
 445
590
1315
 2050
3755
NA
 515
945
NA


All Specification Subject to Change Without Notice.

PowerLight is a registered trademark of QSC Audio Products, LLC

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