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$269.00 $242.10

In stock (can be backordered)

Free set of 1/0-4ga reducers?


The Ampere Audio AA-75.4 is the perfect amplifier for anyone looking to step up their front stage. This quality sounding class A/B 4-channel will work with a majority of speakers on the market today.

Technical Specs

  • Number of Channels: 4
  • RMS power, 4 ohms stereo: 75W x 4CH
  • RMS power, 2 ohms stereo: 110Wx 4CH
  • RMS power, 4 ohms bridged: 220W x 2CH
  • Input Sensitivity: Variable 200mV~8V (+/- 5%)
  • Channel Separation: 75dB
  • Frequency Response: 10Hz~40KHz (+/- 1dB)
  • Low Pass Frequency Crossover: 30Hz~250Hz (CH1/2), 50Hz~5KHz(CH3/4)
  • High Pass Frequency Crossover: 50Hz~5KHz (CH1/2), 50Hz~1KHz(CH3/4)
  • Subsonic Filter: 10Hz~100Hz
  • Bass Boost: 0 ~ 12dB
  • T.H.D Continuous @ 4 ohm, 1KHz: <0.5%
  • Working Voltage: DC 8.5V~16V
  • Signal To Noise Ratio: >90dB
  • Recommended Fusing: 25A x 2
  • Dimensions: 256(W) x 55(H) x 310(L) mm


  • Multi-Way Protection Circuitry
  • (Thermal/Over Current/Speaker Short/Speaker DC Protection)
  • Variable Subsonic
  • Variable Bass Boost
  • Variable Low Pass Filter
  • Variable High Pass Filter
  • 8 Gauge Power Supply Connectors
  • Class-A/B
  • 2 Ohm Stability

Xplicit Audio is proud to be an Authorized Ampere Audio Dealer!

Weight8 lbs
Dimensions17 × 8 × 4 in


In the event that an Ampere Audio Amplifier/Subwoofer fails due to a manufacturing defect, we will fix or replace it free of charge for a time period of one year from the date of purchase. This only applies to the original purchaser with original box and accessories must accompany. Warranties are non-transferable and amplifiers will not be covered under warranty if ran below a 1 ohm load or if underpowered by a weak electrical system. Failure to do so can decrease the life of the amplifier and void your warranty.

This warranty does not apply with respect to the following:

  1. Ampere Audio’s warranty does not cover burned/open voice coils or lead wires, ripped surrounds or folded cones.
  2. Defects or damage caused by environmental accidents.
  3. Products that have the serial numbers removed or altered.
  4. Products which have been altered or repaired by anyone other than Ampere Audio or dB-r.

All returns must be sent with a RA # on the outside of the box in four place. Products sent without a RA will be refused and shipped back at the customers expense. The RA # can be obtained by contacting Ampere Audio and requesting the needed information.

Warranty claims must be accompanied by the original invoice to validate the warranty service or contact Ampere Audio for information.

Amplifier Repair: dB-r electronics

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