Power Output – RMS, Both Channels Driven (20 Hz - 20 kHz)
120 watts x 4 @ 8Ω
150 watts x 4 @ 4Ω or 2Ω

Minimum Speaker Impedance:
A+B Outputs of a Single Channel: 2 Ω

Note: Continuous operation at this minimum impedance might require additional ventilation for the amplifier.

Frequency Response:
20 Hz - 20 kHz, +0/-0.25 dB
5 Hz - 50 kHz, +0/-3 dB

Total Harmonic Distortion:
< 0.05 % at typical listening levels
< 1.0% at full power

Interchannel Crosstalk: 70 dB at 20 kHz

Total Gain: 29 dB (Level controls set to Maximum)

S/N Ratio: >112 dB, input shorted, IHF A-weighted

DC Trigger Requirements: +9 Vdc to +12 Vdc, 5 mA

Audio Trigger Requirements: 2 mV audio signal

AC Power Requirement:
600 Watts maximum
60 Watts typical (music playing in all zones)
30 Watts idle (all zones on)
15 Watts idle (one zone on)
100-250 VAC 50/60 Hz (automatic)

Dimensions:
Width: 17.25" (437 mm)
Depth: 14.25" (362 mm)
Depth: 16" (406 mm) with cables connected
Height, with feet: 2.5" (63.5 mm)
Height, without feet: 1.75" (45 mm), 1U

Weight:
Net: 12 lbs. (5.5kg)
Shipping: 18 lbs. (8.2 kg)