Zapco Z-1100.1 AP Class AB Full-Range Mono Amplifier

$1,499.99 OR

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Model: Z-1100.1AP UPC: 8033373004445 Item: 180130

Product Information

The Ultimate SQ Amp

For the new Z-AP series amplifiers, ZapCo took the best of their LX amps and tweaked the circuitry to perfection. In the signal path, they replaced the electrolytics with the high-end WIMA poly caps and used a new low-noise, audio op-amp for the input stage with the smoothest audio op-amp they could find. They doubled the output drivers and increased the operating voltage of the matched final output devices. To get heat off the output devices faster, and increase efficiency, they used a new aerospace insulator. At the differential input stage, they used 0.1% resistors, not 1% but 0.1%... to assure the lowest possible floor. They developed our own patented, multi-ground RCA connectors with extra heavy gold plating for perfect signal transfer. Zapco even improved the low noise gain pots had added detents to make watching levels a breeze. To top it all off, they gave it a new look, with a matt black finish and a solid copper plate with the logo and serial number engraved for posterity.


  • Class-AB, Full-Range Mono Amplifier
    • Power @ 4Ω: 650 watts
    • Power @ 2Ω: 1100 watts
    • Power @ 1Ω: 1600 watts
  • Signal to noise ratio of over 110dB
  • Coupled the output drivers
  • Highest HFE (Gain) Sanken selected output devices
  • Differential balanced input stage
  • 0.1% resistors for lowest possible noise floor
  • TI LME49720 (BJT) op-amps on the inputs
  • TI LME49720 (BJT) op-amps in the signal path
  • WIMA MKS2 series caps in the signal path
  • Extremely low ESR caps throughout
  • Proprietary patented RCA connectors



  • Power @ 4Ω: 650 watts
  • Power @ 2Ω: 1100 watts
  • Power @ 1Ω: 1600 watts *
  • THD @ Rated Power:  < 1%
  • Signal to Noise Ratio: > 110dB
  • Frequency Response: 10Hz to 30,000Hz ±1dB
  • Input Sensitivity: 1v to 9v
  • Dimensions (W x H x D): 7.48” x 2.44” x 18.89”

*AP amplifiers are stable at 1Ω only when used with music signal and with proper ventilation.

What's in the Box

What's in the Box

  • Z-1100.1 AP Class AB Full-Range Mono Amplifier
  • Manual


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