Rockford Fosgate
150W RMS Mono Amplifier

Rockford Fosgate PBR300X1
Rockford Fosgate PBR300X1 Rockford Fosgate PBR300X1 Rockford Fosgate PBR300X1 Rockford Fosgate PBR300X1 Rockford Fosgate PBR300X1 Rockford Fosgate PBR300X1 Rockford Fosgate PBR300X1


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

The PBR300X1 is a mono car audio 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.

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

CTA-2006 Compliant

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


Stores energy and dynamically boosts rail voltage to create power on demand.

Punch EQ2

Onboard equalizer with up to +18dB @ 45Hz and/or up to +12dB boost at 12kHz.


MEHSA³ reduces MOSFET temperatures, lowers distortion, increases durability and prolongs the output device life span.


DSM utilize 1% tight-tolerances improving efficiency of the circuit, decreases cross-talk from other discrete components and lowers operating temperature.

Engineered in the USA

These Avatars are a personal signature from the Rockford Fosgate team member(s) who designed and engineered this fanatic product. This statement illustrates our commitment to being Designed and Engineered in the U.S.A.


300W RMS
75W x 1 @ 4Ω
150W x 1 @ 2Ω
300W x 1 @ 1Ω
Dynamic Power
96W x 1 @ 4Ω
189W x 1 @ 2Ω
326W x 1 @ 1Ω
Frequency Response
20Hz - 20kHz +/- 3dB
Input Sensitivity
Low-Level: 150 mV - 4 V
High-Level: 400 mV - 11 V
Circuit Topology Class
Class BR
75% @ 4Ω
75% @ 2Ω
75% @ 1Ω
Total Harmonic Distortion
4Ω: <1.0%
2Ω: <1.0%
Signal Input
High/Low Input Switch
High/Low Level Input: 4-Pin Harness
Hi-Level Sensitivity: Variable DC Offset Sensitivity
Signal Output
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
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 (+)
Operating Voltage
9 - 16 VDC
Recommended Fuse
30 A
Average Current Draw
15 A
Max. Current Draw
30 A
Suggested Alternator
75 A
1.53" x 4.25" x 6.75"
390 x 108 x 172mm
2.76 lbs (1.25 kg)
More Information
Brand Rockford Fosgate
Amplifier Class Class BD
RMS Power 150W RMS
RMS Power at 4 Ohms 75W RMS x 1 @ 4 Ohms