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Rockford Fosgate PBR300X1 Punch 300 Watt Mono Amplifier

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Designed for a Subwoofer System That Requires Little Space


The Punch PBR300X1 is a 300 Watt mono amplifier designed for compact subwoofer systems. This efficient amp packs a Punch in motorcycles, ATVs and hybrid-electric vehicles without sucking a lot of juice from your electrical system.

The PBR300X1 is a mono amplifier designed for a subwoofer system that requires little space. The BRT (Boosted Rail Technology) is an ultra efficient design that doesn’t even use a switching power supply to generate its 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
  • 12dB/octave Butterworth crossover
  • High level inputs
  • Ultra compact chassis
  • Variable 4-6 volt hi level DC offset voltage input turn-on control


  • CEA-2006 Compliant
  • Number of Channels 1
  • Total Power (Sum of Rated Power) 300 Watts
  • Rated Power (RMS Continuous Power) 75 Watts x 1 @ 4-Ohm, 150 Watts x 1 @ 2-Ohm, 300 Watts x 1 @ 1-Ohm
  • Dynamic Power (PVC/PowerCube®) 96 Watts x 1 @ 4-Ohm, 189 Watts x 1 @ 2-Ohm, 326 Watts x 1 @ 1-Ohm
  • Bridgeable No
  • Frequency Response 20Hz – 250Hz +/-3dB
  • Input Sensitivity Low-Level: 150 mV – 4 V, High-Level: 400 mV – 11 V, Circuit Topology ClassClass BR
  • Efficiency (average) 75% @ 4-Ohm, 75% @ 2-Ohm, 75% @ 1-Ohm
  • Total Harmonic Distortion (THD+Noise) 4-Ohm: <1.0%, 2-Ohm: <1.0%
  • Signal Input High/Low Input Switch, High/Low Level Input: 4-Pin harness, Hi-Level Sensitivity: Variable DC offset sensitivity
  • Tone Controls External via Optional Punch EQ
  • Crossover Controls Low-Pass: 35Hz – 250Hz @ 12dB/Octave Butterworth
  • Remote Controls Optional PEQ provides 0dB to +18dB @ 45Hz
  • Visual Indicators Power/Protect, BRT (Boost)
  • Power Wire Gauge 10 AWG
  • Power Input Connector Detachable Compression Terminal
  • Speaker Wire Gauge 16 AWG
  • Speaker Output Connector 4-Pin Harness, Wiring Convenience: 2 Negative Terminals (-), 2 Positive Terminals (+)
  • Cooling Convection
  • Operating Voltage 9 – 16 VDC
  • Recommended Fuse (not included) 30 A
  • Average Current Draw (13.8V Music) 15 A
  • Max. Current Draw (13.8V Sinewave) 30 A
  • Suggested Alternator 75 A
  • Dimensions (H x W x D) 1.53 x 4.25 x 6.75 (in.) 3.90 x 10.8 x 17.2 (cm)
  • Shipping Weight 2.76 lbs. (1.25 Kg.)

Rockford Fosgate PBR300X1 Specs

Weight 1.25 kg
Dimensions 17.2 × 10.8 × 3.9 cm

Rockford Fosgate: Revolutionizing Audio in Automotive, Marine, and Motorcycle Industries

Rockford Fosgate, an iconic American brand, has carved a niche in the audio industry, particularly in automotive, marine, and motorcycle sectors. Known for their robust and high-quality audio products, Rockford Fosgate continues to innovate and provide exceptional sound systems that cater to audiophiles and enthusiasts who demand superior sound quality and durability in challenging environments.

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