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Rockford Fosgate

Rockford Fosgate Punch 300 Watt BRT Full-Range 4-Channel Amplifier - PBR300X4

Abt Model: PBR300X4 | UPC Code: 780687333102
 Discontinued Product This item is no longer available from our website.
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Rockford Fosgate - PBR300X4 - Car Audio Amplifiers
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High Level Inputs/ MOSFET Output Stage/ Extruded Aluminum Heat Sink/ Convection Cooling/ 300 Watts RMS/ High Pass And Low Pass Crossover Controls/ Bridgeable/ 20Hz - 20kHz +/-1dB Frequency Response/ Block Harness Power Input Connector/ 4 Channels/ Ultra Compact Chassis/ 12dB/Octave Butterworth Crossover/ Black Finish
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Product Details

Rockford Fosgate Punch 300 Watt BRT Full-Range 4-Channel Amplifier, Model PBR300X4

The PBR300X4 is a full-range 4-channel amplifier designed for stereo front/rear systems that requires little space. The BRT (Boosted Rail Technology) is an ultra efficient design that generates 300 Watts of power! The BRT also has a variable hi-level DC offset turn-on circuit for easy installation into any OEM system. Great for motorcycles and recreational vehicles.


  • MOSFET output stage
  • 2/4 channel switch
  • 12dB/octave Butterworth crossover
  • High level inputs
  • Ultra compact chassis
  • Variable 4-6 volt hi level DC offset voltage input turn-on control


  • Number of Channels 4
  • Rated Power (RMS Continuous Power)
    • 75 Watts x 4 @ 4-Ohm 
    • This amplifier is only capable of operation at 4-Ohm
  • Total (Sum of Rated Power) 300 Watts RMS
  • Bridgeable No
  • Efficiency (average) 55% @ 4-Ohms
  • Crossover Controls Selectable 80Hz LP/AP/80Hz HP @ 12dB/Octave
  • Signal Input
    • Hi-Level: Variable DC offset sensitivity 
    • High-Level: harness 
    • Low-Level: 2 Pair RCA
  • Power Input Connector Block harness
  • Power Wire Gauge 10 AWG
  • Speaker Output Connector Harness 
  • Speaker Wire Gauge Harness 16 AWG
  • Heat Sink Type Extruded aluminum
  • Cooling Convection
  • Visual Indicators
    • Power
    • Protect
    • Boost
  • Circuit Topology Class Class-BR
  • Frequency Response 20Hz - 20kHz +/-1dB

Approximate Dimensions:

  • Height: 1.53"
  • Width: 4.25"
  • Length: 6.75"

Approximate Weight:

  • Shipping: 12 lbs

Warranty Information:

  • Manufacturer Warranty (authorized online retailer): 1 Year Parts & Labor
  • Extended Service Warranty Available: Click the warranty tab above for details
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More reasons to buy the Rockford Fosgate PBR300X4 from Abt Electronics
  • is an authorized dealer (Learn More).
  • The Rockford Fosgate PBR300X4 is Brand New.
  • The Rockford Fosgate PBR300X4 Ships in a Factory Sealed Box.
  • Abt ships this product for free!
Rockford Fosgate Punch 300 Watt BRT Full-Range 4-Channel Amplifier

Rockford Fosgate Punch 300 Watt BRT Full-Range 4-Channel Amplifier


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