Products / Amplifiers

DCA 2 Channel Series

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

DCA 2-Channel Series
DCA 4-Channel Series

DOCUMENTS

DCA Users Manual (PDF 2.3MB)
DCA 2-Ch Specifications (PDF 200K)
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
DCA 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

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	10 k ohms unbalanced, 10 k 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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