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Q-SYS DCA3422 2-Channel Cinema Power Amplifier

Q-SYS DCA3422 2-Channel Cinema Power Amplifier

SoundPro Item: 119388 | Part Number: DCA3422

Pricing available upon request

Pricing available upon request

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  • DataPort Interface Enables Direct Integration With QSC DCP And DCM Cinema Processors
  • Active Inrush Limiting Prevents Circuit Breaker Trips At Power-On During Rack Startup
  • Exclusive PowerLight Power Supply Maintains Tight Low-Frequency Control Under Dynamic Loads
  • Patented Output Averaging Short Circuit Protection Guards Against Load Faults
  • Gain Control Security Cover Prevents Tampering And Accidental Misadjustment After Commissioning
  • Variable-Speed Fan With Back-To-Front Airflow Manages Thermal Load Quietly
  • Neutrik Speakon And Safety-Shrouded Barrier Strip Outputs Provided On Every Channel
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The Q-SYS DCA3422 is built for cinema integrators who need a rack-efficient, high-output amplifier in non-networked cinema installations. Its two channels deliver 800W into 8 ohms and scale to 1700W per channel into 2 ohms under EIA conditions, providing the dynamic headroom required for main screen channels and subwoofers in mid-to-large auditoriums without thermal shutdown or nuisance breaker trips. Active inrush limiting makes it well-suited for pre-wired systems that ship without deinstallation procedures.

What separates the DCA3422 from general-purpose install amplifiers is its DataPort HD15 interface, which enables direct communication with QSC DCP Digital Cinema Processors and DCM Digital Cinema Monitors. This integration path is absent from most category alternatives and removes the need for additional interface hardware in a cinema equipment rack. The exclusive PowerLight power supply and 2-Step H output circuitry maintain low-frequency control and high efficiency under real-world dynamic loads, while the unweighted SNR exceeding 107 dB satisfies the strict acoustic baseline of dedicated cinema rooms with very low ambient noise floors.

At 3.5 inches high and 14 inches deep, the DCA3422 fits standard rack bays without special clearance or chassis extensions. Front recessed gain controls sit behind a security cover to prevent accidental adjustment after commissioning, and rear DIP switches handle clip limiting, LF filtering, and bridge mode configuration without requiring software access. Neutrik Speakon and safety-shrouded barrier strip outputs are provided on every channel, covering both touring-style connector and permanent install wiring approaches.

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Specifications

Audio
Channels
2
Power Output (8 ohm, 20 Hz-20 kHz, 0.03% THD)
700 W per channel
Power Output (4 ohm, 20 Hz-20 kHz, 0.05% THD)
1100 W per channel
EIA Power (8 ohm, 1 kHz, 1% THD)
800 W per channel
EIA Power (4 ohm, 1 kHz, 1% THD)
1250 W per channel
EIA Power (2 ohm, 1 kHz, 1% THD)
1700 W per channel
Bridged Mono (16 ohm, 20 Hz-20 kHz, 0.1% THD)
1400 W
Bridged Mono (8 ohm, 20 Hz-20 kHz, 0.1% THD)
2200 W
Bridged Mono (4 ohm, 1 kHz, 1% THD)
3400 W
Signal to Noise Ratio (20 Hz-20 kHz, unweighted)
> 107 dB
Input Sensitivity (full rated power at 8 ohm)
1.9 V rms / +7.8 dBu
Input Sensitivity (full rated power at 4 ohm)
1.7 V rms / +6.8 dBu
Frequency Response (LF filter off)
20 Hz-20 kHz, +/- 0.2 dB; 8 Hz-50 kHz, +0/-3 dB
Damping Factor (1 kHz and below)
Greater than 500
Input Impedance
10 kohm unbalanced, 20 kohm balanced
Input Clipping
10 V rms (+22 dBu)
Voltage Gain (8 ohm)
40x (32 dB)
Distortion SMPTE-IM
< 0.02%
Distortion THD (20 Hz-20 kHz, 10 dB below rated power)
Less than 0.01% at 8 ohm and 4 ohm
Output Circuitry Class
2-Step H
Connectivity
Input Connectors (per channel)
1/4" TRS, 3-pin XLR, 3-pin detachable terminal block
Output Connectors (per channel)
Neutrik Speakon, safety-shrouded barrier strip (includes Monitor output)
DataPort Connector
One HD15
Controls
Front Panel
AC switch, Ch. 1 and Ch. 2 recessed gain knobs
Rear Panel
DIP switches: Clip Limiter on/off per channel, LF Filter on/off per channel, LF Filter Freq 30 or 50 Hz per channel, Inputs Parallel or Stereo, Bridge Mode
Indicators
Per Channel LEDs
CLIP/PROT (Red), LEVEL -10 dB (Green), LEVEL -20 dB (Green), SIGNAL -35 dB (Green), BRIDGED (Yellow), PARALLEL INPUTS (Yellow), POWER (Green)
Construction
Cooling
Variable-speed fan, rear-to-front airflow
Amplifier Protection
Full short circuit, open circuit, thermal, ultrasonic, and RF protection
Load Protection
On/off muting, DC-fault power supply shutdown
Dimensions
Height x Width x Depth
3.5" x 19" x 14"
Height x Width x Depth (mm)
89 x 483 x 356
Weight
Net Weight
21 lbs (9.5 kg)
Included Items
Optional Accessories
XC-3 Cinema Crossover, SF-3 Subwoofer Filter, LF-3 Low Frequency Filter

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