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Pioneer GM Series 4-Channel Power Amplifier - GMA4604

Abt Model: GMA4604 | UPC Code: 884938219709
 Discontinued Product This item is no longer available from our website.
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480W Total Power Bridged/ 4 x 80W (4 Ohm) Or 4 x 120W (2 Ohm)/ 2-8 Ohm Allowable (Stereo)/ Screw-Type Speaker Terminals/ 3 - 26V Speaker Input Level/ Black Finish
Discontinued (details)
Your Shipping Zip Code: 20149 (change)

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Product Details

Pioneer GM Series 4-Channel Power Amplifier, Model GMA4604

A combination of great design and massive power, the GM-A4604 amplifier gives you total installation freedom and no distortion. With a one-body heat sink and gain adjustment of up to 6.5V, you can turn your in-car audio experience into the sound staging environment that you’re looking for. This 4-channel amp allows you to drive multiple speakers and subwoofers, it’s also bridgeable to power a single sub.


  • Maximum Output Power: 480W (Bridged) or 4 x 80W (4 Ohm) or 4 x 120 W (2 Ohm)
  • CEA 2006 Power (THD + N = 1%): 2 x 120W (4 Ohm)
  • Continuous power output (RMS): 4 x 40W (4 Ohm) or 4 x 60W (2 Ohm) or 1 x 120 W (4 Ohm bridged)
  • Load impedance capability: 2-8 ohm allowable (stereo)
  • Frequency response: 10Hz ~ 70kHz (+0dB , -3dB) Hz
  • Distortion: < 0.05 %
  • S/N ratio: > 94 dB
  • LPF: 80Hz (-12 dB/oct)
  • Speaker Terminals: Screw-type
  • High Voltage Input (+): 300 mV - 6.5 V
  • Speaker Input Level: 3 - 26 V
  • Max. current consumption (A/4 Ohm): 31A

Approximate Dimensions:

  • Height: 2.36"
  • Width: 12.52"
  • Depth: 8.46"

Approximate Weight:

  • Unit: 4.63 lbs
  • Shipping: 6 lbs

Warranty Information:

  • Manufacturer Warranty (authorized online retailer): One Year Parts and Labor
More reasons to buy the Pioneer GMA4604 from Abt Electronics
  • is an authorized dealer (Learn More).
  • The Pioneer GMA4604 is Brand New.
  • The Pioneer GMA4604 Ships in a Factory Sealed Box.
  • Abt ships this product for free!
Number of Channels4-Channel


by PowerReviews
Pioneer GM Series 4-Channel Power Amplifier

(based on 1 review)

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Reviewed by 1 customer

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Great amp fir the money


from Spokane WA


  • Clear Audio


    Best Uses

      Comments about Pioneer GM Series 4-Channel Power Amplifier:

      The amp is easy to install and gives a much needed boost for clearer sound

      • Was this a gift?:
      • No

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      Pioneer GM Series 4-Channel Power Amplifier

      Pioneer GM Series 4-Channel Power Amplifier


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