Zapco Z-3KD II Mono Class D Competition Amplifier

Brand: Zapco
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Class D Competition Amplifiers

High Output Sound Quality


Over the last few years Zapco has developed two specialized amplifiers to take auto sound to a different level. The Z-Series AP amp, the ultimate SQ amp. No controls except gain. They also brought out the Z-SP Series amps for the fanatics that want to play full-volume full-time but still get audiophile sound. This year they stepped back and took a look at the amp that started it all. The Z-Series amplifier. Using some of the parts and technology from the new AP and SP models they have improved one of the most iconic amps in history. The new Z Series II Class D amps include:


• A beefed up power supply • Increased power • New high end audio caps like the SQ amps 

• New TI low noise op-amps like the SQ amps • Improved tiffany style panel mount RCA connectors

• The end plates are now recessed like the LX amps for a cleaner look

• The plastic controls have been replaced by the new metal pots and switches. The new pots  also have detents (like the SP amps) at 40ea so you can accurately set crossovers and gains identical with multiple amplifiers


Features and Functions


  • Mono Class D Linkable, bass amplifier,

  • Stable into 1 Ohm (2 Ohm w/2 amps Linked/Strapped)

  • PWM MOSFET power supply

  • 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 Linked (strapped) amplifier operation




  • Power @ 4Ω: 900 watts

  • Power @ 2Ω: 1800 watts

  • Power @ 1Ω: 3000 watts

  • Linked @ 2Ω: 6000 Watts

  • THD @ Rated Power  < 0.05%

  • Signal to Noise Ratio > 90dB

  • Damping factor: > 350

  • Efficiency: 86%

  • Input Sensitivity .2v to 8v

  • Dimensions in mm: 190(W) x 62(H) x 620(L) Overall: 190(W) x 62(H) x 657(L)


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