Parasound HALO A31 3x250W power Amp

Continuous power output:
     250 W RMS x 3, 20 Hz - 20 kHz, 8 Ω, all channels driven
     400 W RMS x 3, 20 Hz - 20 kHz, 4 Ω, all channels driven

Current capacity: 60 amperes peak per channel
Power bandwidth: 5 Hz - 100 kHz, 0/-3 dB at 1 watt
Total harmonic distortion:< 0.2 % at full power
IM distortion: balanced 16 V rms  < 0.04 %
Slew rate: > 130 V/µsecond
Dynamic headroom: > 1.5 dB
Interchannel crosstalk:  > 78 dB at 1 kHz;
                                  > 63 dB at 20 kHz
Input sensitivity:  1 V for 28.28 V (THX Reference)
Input impedance:  47 k Ω unbalanced; 94 k Ω balanced
S/N ratio: 112 dB, input shorted, IHF A-weighted
Damping factor:  > 1100 at 20 Hz

Dimensions:  17-1/4" w x 7-5/8" h x 19-1/8" d, 7" h without feet

Net weight: 65 lb.

Shipping weight: 79 lb