Zapco AG Reference-series - Manual (Page 62)

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Reference 650.6 Specifications
Total Power (14.4V @ 1kHz) Power
Dynamic (4 Ω mono) 540 watts
Rated Power / Channel T.H.D.+N
50 watts x 6 @ 4 Ω < .05%
104 watts x 6 @ 2 Ω .2%
Max Power
90 watts x 4 @ 2 Ω
175 watts x 2 @ 1 Ω
.2%
Frequency Response 20 – 20kHz, + 0 / - .5dB
S/N Ratio > 95dB
Transient Distortion (4 Ω , 40W) < .02%
Slew Rate > 23 V/ µ S
Damping Factor > 160 @ 4 Ω
Input Sensitivity
Balanced (DIN) 500mV – 10V
Unbalanced (RCA) 250mV – 5V
Separation > 60dB
Max. Current Requirements 80 Amps @ 540 watts
Idle Current 1.72 Amps
Dimensions 31”L x 7.5”W x 1.95”H