Pioneer GM-A6704 4-Channel Car Amplifier

PIONEER ★ 3.9/5 · ItemOracle Score Mid-Range

$140 USD
Price subject to change
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Pioneer GM-A6704 4-Channel Car Amplifier  1000W Max, Class AB, Bridgeable Design, Bridgeable, High-/Low-Pass Filters

Pioneer GM-A6704 4-channel amplifier delivers up to 1,000 watts max with 60W RMS per channel at 4 ohms. Adds flexibility with bridgeable design and high-/low-pass filters. Customers note strong sound quality and easy installation, with mixed feedback on reliability

Highlights

  • bridgeable 4-channel design
  • 60W RMS x4 at 4 ohms
  • class AB efficiency with filters

Pros

  • 4-channel Class A/B amp
  • Bridgeable design
  • 60 watts RMS x 4 at 4 ohms
  • High-/low-pass filters
  • Powerful max output

Cons

  • Mixed feedback on heat generation
  • Some reports of reliability issues
  • Some users experienced amp failures after short use

Best For

  • drive front speakers
  • drive rear speakers
  • add subwoofer via bridge mode
  • enhance car audio clarity
  • adjust sound with filters
  • easy installation for upgrade

Features

  • 4-channel Class A/B amplifier with bridgeable mode for flexible speaker configurations
  • Delivers up to 1,000 watts max power with 60W RMS x 4 @ 4 ohms (190W RMS x2 bridged)
  • Supports high-/low-pass filtering for tailored audio playback
  • Efficient Class AB design balances performance with reliable operation
  • Low distortion output with minimized crossover distortion for clear sound

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