QSC Audio DCA 1222 User Manual
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DCA1222
DCA1622
DCA2422
DCA3022
DCA3422
OUTPUT POWER
in watts
FTC: 20 Hz–20 kHz @ 0.03% THD,
all channels driven
8 ohms per channel
200
300
425
550
700
FTC: 20 Hz–20 kHz @ 0.05% THD,
all channels driven
4 ohms per channel
325
500
700
900
1100
EIA: 1 kHz @ 1% THD, one channel driven
8 ohms per channel
215
325
475
625
800
4 ohms per channel
375
550
825
1050
1250
2 ohms per channel
600
800
1200
1500
1700
Bridge Mono:
16 ohms, 20 Hz–20 kHz, 0.1% THD
400
600
850
1100
1400
8 ohms, 20 Hz–20 kHz, 0.1% THD
700
1000
1500
2000
2200
4 ohms, 1 kHz, 1% THD
1200
1600
2400
3000
3400
DYNAMIC HEADROOM
2 dB @ 4 ohms
DISTORTION
SMPTE-IM
< 0.01%
< 0.01%
< 0.02%
< 0.02%
< 0.02%
FREQUENCY RESPONSE
20 Hz–20 kHz, ±0.15 dB
(at 10 dB below rated output power)
-3 dB points: 5 Hz and 100 kHz
DAMPING FACTOR
> 500 @ 8 ohms
NOISE (unweighted 20 Hz to 20 kHz, below rated output)
106 dB
107 dB
108 dB
107 dB
107 dB
VOLTAGE GAIN
40× (32 dB)
INPUT SENSITIVITY, V RMS
full rated power @ 8 ohms
1.0v (+2.2 dBu)
1.2v (+3.9 dBu)
1.5v (+5.5 dBu)
1.7v (+6.8 dBu)
1.9v (+7.7 dBu)
full rated power @ 4 ohms
0.9v (+1.3 dBu)
1.1v (+3.2 dBu)
1.3v (+4.6 dBu)
1.5v (+5.7 dBu)
1.7v (+6.6 dBu)
INPUT IMPEDANCE
10K ohms unbalanced
20K ohms balanced
# OF CHANNELS
2
2
2
2
2
CONTROLS
Front: AC switch, Ch. 1 and Ch. 2 gain knobs with 21 detents
Rear: 10-position DIP switch
INDICATORS
POWER:
Green LED
CLIP:
Red LED, 1 per channel
PARALLEL:
Yellow LED
-10 dB:
Green LED, 1 per channel
BRIDGED:
Yellow LED
-20 dB:
Green LED, 1 per channel
SIGNAL:
Green LED, 1 per channel
CONNECTORS
Input: XLR and ¼" (6.3 mm) TRS, tip and pin 2 positive; detachable "Euro-style" terminal blocks
Output: Barrier strip and Neutrik Speakon™
HD-15 female connector for QSControl, DCM Digital Cinema Monitor, or accessories (XC-3, LF-3, or SF-3)
COOLING
Forced-air, with variable-speed fan; back-to-front air flow
AMPLIFIER PROTECTION
Full short circuit, open circuit, thermal, ultrasonic, and RF protection
Stable into reactive or mismatched loads
S P E C I F I C AT I O N S S P É C I F I C AT I O N S TECHNISCHE DATEN ESPECIFICACIONES