Power Output Per Channel .1% THD @ 1kHz in Watts

        Stereo Mode             Bridged Mono
        8 ohms  4 ohms  2 ohms  8 Ohms  4 Ohms          

PS 1 110     165             330
PS 2     220     330             660
PS 3     330     500     700     1000    1400
PS 4     440     660     925     1320    1850

Intermodulation Distortion           Less than 0.05% at rated output
                                     (SMPTE method, 60Hz & 7kHz, 4:1 ratio)

Small Signal Frequency Response      8Hz - 175kHz +0, -3dB

DC Offset Voltage                    Less than 10 millivolts at output terminals

Hum and Noise Level                  Better than 100dB typical below rated 
                                     output into 8 ohms (A-wtd., 20Hz to 20kHz)

Min. Input Impedance (/ch)           10k ohms balanced

Input Sensitivity                    0.775 Vrms for rated 8 ohm output: or 1.55 Vrms (PS4)

Voltage Gain                         PS1 33.2dB        PS2 34.2dB
                                     PS3 35.7dB    PS4 37.2/31.2dB

Damping Factor                       Greater than 200:1 (ref. 8 ohms)

Load Impedance                       4 ohms or greater (PS1 & 2)
                                     2 ohms or greater (PS3 & 4)

Power                                Specify operation for either 120, 
                                     220 or 240 volts AC, 50-60 Hz

Dimensions            
        Height                       2U 3.5 inches (8.89 cm)
        Width                        19 inch standard rack front panel (48.3 cm)
        Depth                        12.6"(PS1)   12.6"(PS2)   13.6"(PS3)   17.1"(PS4)

Weight Net/Shipping                  26/31 lbs    32/37 lbs    37/40 lbs    53/58 lbs