5 channal
4-channel + mono digital Power Amplifier
Max Power Output Ratings
Total Max Power: 1600W
RMS Power Ratings
Per Channel into 4ohms, 14.4V (≤1%THD+N): 100W RMS x 4 + 500W RMS x 1
Per Channel into 2ohms, 14.4V (≤1%THD+N): 100W RMS x 4 + 500W RMS x 1
Bridged into 4ohms, 14.4V (≤1%THD+N): 200W RMS x 2
Sound Tuning
Crossover (CH1/2, HPF): 30 - 600 Hz (x1), 300 - 6kHz (x10), -12 dB/oct.
Crossover (CH3/4, HPF): 30 - 600 Hz, -12 dB/oct.
Crossover (CH3/4, BPF): 30 - 600 Hz (HPF), 300 - 6kHz (LPF, x10), -12 dB/oct.
Crossover (Subwoofer): 50 - 600 Hz, -24 dB/oct.
Subsonic Filter: 3 - 30 Hz, -24 dB/oct.
General
Power Requirements: 14.4 V.DC (11-16 V allowable)
Input Sensitivity (RCA Input): 0.2 - 4V (CH1/2, CH3/4), 0.1 - 4V (Subwoofer)
Input Impedance: >10k ohms
Frequency Response (+0, -3dB: 1W into 4 ohms) for CH-1/2/3/4: 3 - 100kHz
Frequency Response (+0, -3dB: 1W into 4 ohms) for Subwoofer: 3 - 600 Hz
THD+N (10W into 4 ohms) for CH-1/2/3/4: ≤0.005%
THD+N (10W into 4 ohms) for Subwoofer: ≤0.006%
THD+N (Rated Power into 4 ohms) for CH-1/2/3/4: ≤0.03%
THD+N (Rated Power into 4 ohms) for Subwoofer: ≤0.05%
Damping Factor for CH-1/2/3/4: >500 into 4ohms at 100Hz
Damping Factor for Subwoofer: >1000 into 4ohms at 100Hz
Signal to Noise (Rated Power into 4 ohms) for CH-1/2/3/4: 112 dB
Signal to Noise (Rated Power into 4 ohms) for Subwoofer: 119 dB
Weight: 2.7 kg
Dimensions
Footprint: 257 x 50.8 x 192 mm

https://www.alpine.co.uk/p/Products/SingleView/pdx-v9