Zapco's flagship Class-AB "Audiophile" amplifier, built to set new sound-quality standards for car and home alike — designed by listening as much as by measuring.
The AP Difference
The same high-end audiophile electrolytic caps as the flagship LX amps, with WIMA poly caps in the signal path.
A new low-noise input op-amp and the smoothest available op-amp in the signal path.
Doubled output drivers with increased operating voltage; a new aerospace insulator pulls heat off the outputs faster.
0.1% precision resistors at the differential input stage for the lowest possible noise floor.
Patented multi-ground, gold-plated RCA connectors for perfect signal transfer.
Low-noise gain pots with detents; matt-black finish with an engraved solid-copper serial plate.
Power Output
4 Ω Stereo
4 × 150 W
2 Ω Stereo
4 × 275 W
1 Ω Stereo
4 × 400 W *
4 Ω Bridged
2 × 550 W
2 Ω Bridged
2 × 800 W *
Performance
Amplifier Class
AB
Channels
4
Signal-to-Noise
over 110 dB
THD at Rated Power
under 1%
Frequency Response
15 Hz – 30 kHz
Tested Voltage
14.4 V
Connections & Controls
Inputs
4 × RCA
Outputs
2 × RCA (pass-through)
Gain
Adjustable, 9 V – 1 V
Dimensions
Overall (L × W × H)
468 × 190 × 62 mm
Chassis (L × W × H)
440 × 190 × 62 mm
* Stable at 1 Ω stereo / 2 Ω bridged with music signal and proper ventilation.
RiotousAudio