Zapco AG Reference-series - Manual (Page 40)

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Reference 500.1 Specifications
Total Power (14.4V @ 1kHz)
.2% T.H.D. 500 watts
Rated Power T.H.D.+N
350 watts x 1 @ 4 Ω < .04%
500 watts x 1@ 2 Ω < .20%
Frequency Response 20 – 20kHz, +0/-.5dB
S/N Ratio > 80dB
Transient Distortion (4 Ω , 35W) < .013%
Slew Rate > 25 V/ µ S
Damping Factor > 250 @ 4 Ω
Input Sensitivity
Balanced (DIN) 250mV – 10V
Max. Current Requirements 40 Amps @ 500 watts
Idle Current .65 Amps
Dimensions 12”L x 7.5”W x 1.95”H