Rockford Fosgate
100W RMS 2-Channel Amplifier

Rockford Fosgate PBR300X2
Rockford Fosgate PBR300X2 Rockford Fosgate PBR300X2 Rockford Fosgate PBR300X2 Rockford Fosgate PBR300X2 Rockford Fosgate PBR300X2 Rockford Fosgate PBR300X2 Rockford Fosgate PBR300X2


The PBR300X2 is a 300 Watt car audio amplifier with Boosted Rail Technology, allowing it to be compact and efficient while providing big power. 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 Punch PBR300X2 uses our patented BRT (Boosted Rail Technology) for an ultra efficient design that does not use a switching power supply to generate its rated power. This allows the chassis design to be much smaller than traditional sized amplifiers. The BRT also has a variable hi-level DC offset turn-on circuit for easy installation into any OEM system.

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


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


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

Punch EQ2

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

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
100W x 2 @ 4Ω
150W x 2 @ 2Ω
300W x 1 @ 4Ω Bridged
Dynamic Power
114W x 2 @ 4Ω
160W x 2 @ 2Ω
387W x 1 @ 4Ω Bridged
Frequency Response
20Hz - 20kHz +/- 3dB
Input Sensitivity
150 mV - 11 V
Circuit Topology Class
Class BR
68% @ 4Ω
Total Harmonic Distortion
4Ω: <1.0%
2Ω: <1.0%
Signal Input
High/Low Level Input: 4-Pin Harness
Hi-Level Sensitivity: Variable DC Offset Sensitivity
Signal Output
Tone Controls
Optional Remote Punch EQ
Crossover Controls
High-Pass: 50Hz - 500Hz @ 12dB/Octave Butterworth
Low-Pass: 50Hz - 500Hz @ 12dB/Octave Butterworth
All-Pass: Yes
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
Operating Voltage
9 - 16 VDC
Recommended Fuse
50 A
Average Current Draw
23 A
Max. Current Draw
45 A
Suggested Alternator
75 A
1.53" x 4.25" x 6.75"
390 x 108 x 172mm
2.8 lbs (1.27 kg)
More Information
Brand Rockford Fosgate
Amplifier Class Class BR
RMS Power 100W RMS