Pioneer GM-A6704 1000W 4-Channel Bridgeable Amplifier with Bass Boost

Sale price $219.00 Regular price $270.00

This 4-Channel Amplifier Unlocks Your Deepest Desire for Power


Give into your deepest desire for power. Work it out how you want with the bridgeable amps. Just consider the consequences whatever you do: pure and clean, distortion-free power. The GM-A6704 will ignite your system, but keep the heat under wraps. These amps are techno wonders and will rumble you to the core.

  Variable High Pass Filters
Variable HPF (High Pass Filter) allows for adjustable frequency between 40 Hz to 500 Hz* and greater car audio system flexibility according to subwoofer characteristics and personal listening preference.

  Bass Boost
Bass Boost featured in the GM-A6704 can be set to levels variably from 0 to 12 dB for optimal bass. This precise control can enhance the overall balance and impact of all sounds according to listening preference and music style.

  Growing Power, Shrinking Size
New Pioneer amps brilliantly integrate high-power performance superior to that of previous models in space-efficient sizes for flexibility of installation in various car cabins.

  Automatic Signal Sensing & Turn On
Pioneer amplifiers automatically select the proper input signal mode, either RCA or speaker level. When the receiver is turned on, the amplifier automatically turns on. When connected to an OEM receiver or a receiver without RCA output and utilizing speaker level output, the amp automatically senses the input mode and powers up in sync with the receiver.

When connected to an OEM receiver or a receiver without RCA output using speaker wire the amplifier is turned on at the same time as the receiver. Pioneer’s amplifiers automatically detect the input signal and select RCA level or speaker level.


  • 1000 Watts Max Power
  • Automatic signal sensing and Turn-ON
  • Variable high pass filter
  • Adjustable bass boost



  • RCA Inputs: 4-CH
  • Amplifier Class: Class AB
  • Hi-Res Certified: No
  • Bridgeable: Yes
  • Warranty: 1 Year
  • Speaker Level Input: Yes
  • Fuse Rating: 25A x 2
  • Bass Boost Remote: No
  • Automatic Signal Sensing and Turn-On: Yes
  • Hi-Volt Input Level Control: 0.3V to 6.5V (RCA in), 3.0V to 26V (SP in)
  • Terminal Type: Screw
  • Load Impedance Allowance (Ohms): 2 to 4
  • Protection Control System: Yes
  • Dimensions: 356(W) X 60(H) X 215(D) mm


  • Continuous Power (RMS) Output @ 1Ω: N/A
  • Continuous Power (RMS) Output @ 2Ω: 95W x 4
  • Continuous Power (RMS) Output @ 4Ω: 60W x 4
  • Continuous Power (RMS) Output - Bridged @ 4Ω: 190W x 2

Audio Adjustments

  • Low-Pass Crossover Frequency: 80 Hz
  • Low-Pass Slope (dB/octave): -12db/oct (A/B CH)
  • High-Pass Crossover Frequency: 40-500 Hz
  • Bass Boost Frequency: 50Hz
  • Bass Boost Level: 0/6/12dB

Audio Specifications

  • Frequency Response: 10Hz ~ 70kHz (+0dB , -3dB)
  • Total Harmonic Distortion (THD): <0.05% ( 10W, 1kHz)
  • Signal-to-Noise (SN) Ratio: > 95dB