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Rockford Fosgate

Rockford Fosgate PBR300X1 Punch 300 Watt Mono Boosted Rail Amplifier

Regular price $249.99 USD
Regular price $249.99 USD Sale price $249.99 USD
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This price was last updated on 1 Mar 2023 05:52 AM EST. Details

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Brand: Rockford Fosgate

Color: Black


  • Our ultra-compact (1.53” x 4.25” x 6.75”) Punch PBR300X1 mono amplifier packs a Punch with 300 Watts of power without sucking a lot of juice from your electrical system
  • Designed for compact subwoofer systems that requires little space (RMS Power Output: 75 Watts x 1 @ 4-Ohm OR 150 Watts x 1 @ 2-Ohm OR 300 Watts x 1 @ 1-Ohm)
  • Featuring our Class BR, Rockford Fosgate’s patented Boosted Rail technology that sips current while retaining a storage reserve for extended bursts of power. Perfect in motorcycles, ATVs and hybrid-electric vehicles
  • Featuring high level inputs, MOSFET output stage, variable 4-6 volt hi level DC offset voltage input turn-on control, and 12dB/octave Butterworth crossover
  • Famous Rockford Fosgate build quality with a full 1-year warranty when purchased from an authorized Rockford Fosgate reseller
  • Mono amplifier with 300W x 1 @ 1-Ohm RMS power rating (150 Watts x 1 @ 2-Ohms, 75 Watts x 1 @ 4-Ohms)
  • Designed for a subwoofer system that requires little space--just 1.53 x 4.25 x 6.75 inches
  • High- and low-level inputs with variable 4-6 volt hi level DC offset voltage input turn-on control
  • 35Hz - 250Hz low-pass crossover with 12dB/octave Butterworth slope
  • One-year limited warranty

Binding: Wireless Phone Accessory

Publisher: Rockford Fosgate


The PBR300X1 is a mono amplifier designed for a subwoofer system that requires little space. Rockford's Boosted Rail Technology offers an ultra efficient design that doesn't need a switching power supply to generate its 300 Watts of power, and features a variable hi-level DC offset turn-on circuit for easy installation into any OEM system. Great for motorcycles and recreational vehicles.

A mono amplifier designed for a subwoofer system that requires little space, delivering 300 watts of MOSFET power.

300 Watts in an Ultra-Compact Amplifier


Power ratings on Rockford Fosgate amplifiers conform to CEA-2006 industry standards. These guidelines mean your amplifier's output power ratings are REAL POWER numbers, not inflated marketing ratings.

Discrete Surface Mount

DSM--An industry-leading manufacturing process, DSM utilizes high-speed robotics, high-quality 1% tight-tolerance parts and large board traces. The discrete components are laser etched to meet a particular value and a very low tolerance. This lower tolerance improves the efficiency of the circuit, decreases cross-talk from other discrete components and lowers operating temperature. These superior components are used by aerospace, automotive, and cellular manufacturers.

Dynamic Thermal Management

Heat is often inefficiently dissipated across a heatsink causing "hot spots". This impacts important design goals, which are:

  • Keeping internal components cool.
  • Maximizing potential of all components.
  • Reducing distortion for better sound quality.
  • Increasing efficiency to produce more power.

Rockford Fosgate engineers have developed an award winning cooling design called DTM. This patent pending design seamlessly manages the output of power supply temperatures, while evenly distributing the excess heat across the entire amplifier.

Switchable high- and low-leve

Package Dimensions: 9.1 x 6.2 x 3.4 inches

Languages: English