Zapco Z-series D - Manual (Page 6)

Digital class-D linkable mono block amplifier
Daisy-chain pass-through RCA output
Dual MOS-FET PWM power supplies
Stable into 1 ohm / 2 ohm parallel speaker connection
24 dB Variable low pass (LPF) crossover
12 dB Variable bass boost equalization
0 - 180 degree variable phase shift
24 dB Variable subsonic filter
Selectable master and slave operation for strapped amplifiers
Speaker short, over current, thermal, and DC protection circuits
Line input and master output / slave input
Heavy duty cooper layer double sided epoxy PCB
4 Guage (AWG) battery input connectors (Z-1KD)
0 Guage (AWG) battery input connectors (Z-2KD/3KD)
100% QC testing and warm up
Efficiency: 86% at 4 ohm, 100 Hz
Tested voltage & THD : 14.4V and less than 0.5% THD at 4 ohm RMS watt
Operating voltage: DC 10V ~ 16V power input
Damping factor: > 350
Wired remote control (optional)
-5-
FEATURES
Z-1KD / Z-2KD / Z-3KD