In Phase IPA 2001D Manuel D'instructions page 3

Specifications
Amplifier
Peak Output Power
4 Ohm Cont. RMS Output Power
2 Ohm Cont. RMS Output Power
1 Ohm Cont. RMS Output Power
Efficiency / Typical @ 4 Ohm
Min Rate @ 1 Ohm
Bandwidth ±1dB
Signal T o Noise
Damping Factor
Input Sensitivity
Input Impedance
Dimensions (W x H x D)mm
Low Pass (Variable)
Fuse Rating
Subsonic Filter (Variable)
All specifications are with 14.4 volts DC.
IPA 2001D
2000W
800W x 1
1200W x 1
2000W x 1
90%
79%
10Hz - 250Hz
>100dB
200
200mV-6V
22k Ohm
250 x 55.5 x 320
50Hz-250Hz
25A x 3
15Hz - 50Hz@24dB
1
IPA 4001D
4000W
1200W x 1
2300W x 1
4000W x 1
90%
79%
10Hz - 250Hz
>100dB
200
200mV-6V
22k Ohm
250 x 55.5 x 480
50Hz-250Hz
N/A
15Hz - 50Hz@24dB