QSC DCA 1222 - Page 30

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DCA1222 DCA1622 DCA2422 DCA3022 DCA3422
OUTPUT POWER in watts
20 Hz–20 kHz @ 0.03% THD
8Ω per channel 200 300 425 550 700
20 Hz–20 kHz @ 0.05% THD
4Ω per channel 325 500 700 900 1100
EIA: 1 kHz @ 1% THD
8Ω per channel 215 325 475 625 800
4Ω per channel 375 550 825 1050 1250
2Ω per channel 600 800 1200 1500 3400
Bridge Mono:
16Ω, 20 Hz–20 kHz, 0.1% THD 400 600 850 1100 1400
8Ω, 20 Hz–20 kHz, 0.1% THD 700 1000 1500 2000 2200
4Ω, 1 kHz, 1% THD 1200 1600 2400 3000 3400
DYNAMIC HEADROOM 2 dB @ 4Ω
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 @ 8Ω
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 @ 8Ω 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 @ 4Ω 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 6 KΩ unbalanced
12 KΩ balanced
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
COOLING Forced-air, with fan speed fully variable from off to full; back-to-front air flow
AMPLIFIER PROTECTION Full short circuit, open circuit, thermal, ultrasonic, and RF protection
Stable into reactive or mismatched loads
SPECIFICATIONS SPÉCIFICATIONS TECHNISCHE DATEN ESPECIFICACIONES