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Technical Specifications
QDA-4400
Power supply:
100-240 V AC, 50/60 Hz
Power consumption:
830 W (1/8 power)
Power output (RMS):
Stereo, parallel at 4 Ω
4 x 1100 W
Stereo, parallel at 8 Ω
4 x 650 W
Bridge mode at 8 Ω
2 x 2000 W
Frequency response:
20-20000 Hz
S/N ratio:
>100 dB
THD:
<0.1 %
Damping factor:
>500
Slew rate:
>10 V/µs
Crosstalk:
>65 dB
Input sensitivity:
0.775 V/1.0 V/1.81 V or 39.3 dB/37 dB/32 dB, switchable
Voltage gain:
39.3 dB
Input impedance:
20 kΩ (balanced), 10 kΩ (unbalanced)
Input connectors:
4 x XLR
Output connectors:
4 x Speaker, 4 x XLR feed-trough output
Circuitry:
Class D
Protection circuits:
softstart, short-circuit, overheat, overload, clip limit, RF and VHF
signals
Control elements:
power switch, level control, mode switch (stereo, bridge, parallel),
input sensitivity
LED indicators:
protect, clip, -5 dB, - 10 dB, - 20 dB (per channel)
Cooling:
2 temperature-controlled fans, front-to-rear
Construction:
steel chassis, aluminum front
Dimensions (DxWxH):
483 x 461 x 89 mm
rack installation with 2 U
Weight:
9.2 kg
Specifications are subject to change without notice due to product improvements.
8.1 Dimensions (mm)
24