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Rockford Fosgate Punch PBR300X2Punch Boosted Rail 300 Watt 2-Channel Amplifier
The Punch PBR300X2 is a compact 300 Watt, 2-channel car amplifier that uses Rockford Fosgate's patented Boosted Rail Technology (BRT) to deliver substantial output while remaining physically small and electrically efficient.
Highlights
- 1 Year Warranty
- High level inputs
- MOSFET output stage
- Variable 4-6 volt hi level DC offset voltage input turn-on control
Key specs
Full specs- Number of Channels
- 2
- Total Power (Sum of Rated Power)
- 300 Watts
- Rated Power (RMS Continuous Power)
- 100 Watts x 2 @ 4-Ohm 150 Watts x 2 @ 2-Ohm 300 Watts x 1 @ 4-Ohm Bridged
- Dynamic Power (PVC/PowerCube®)
- 114 Watts x 2 @ 4-Ohm 160 Watts x 2 @ 2-Ohm 387 Watts x 1 @ 4-Ohm Bridged
- Bridgeable
- Yes
- Frequency Response
- 20Hz - 20kHz +/-3dB
- Input Sensitivity
- 150 mV - 11 V
- Circuit Topology Class
- Class BR
Key specs
Full specs- Number of Channels
- 2
- Total Power (Sum of Rated Power)
- 300 Watts
- Rated Power (RMS Continuous Power)
- 100 Watts x 2 @ 4-Ohm 150 Watts x 2 @ 2-Ohm 300 Watts x 1 @ 4-Ohm Bridged
- Dynamic Power (PVC/PowerCube®)
- 114 Watts x 2 @ 4-Ohm 160 Watts x 2 @ 2-Ohm 387 Watts x 1 @ 4-Ohm Bridged
Highlights
Overview- 1 Year Warranty
- High level inputs
- MOSFET output stage
Overview
The Punch PBR300X2 is a compact 300 Watt, 2-channel car amplifier that uses Rockford Fosgate's patented Boosted Rail Technology (BRT) to deliver substantial output while remaining physically small and electrically efficient.
Best for
- Drivers needing a powerful amp for limited-space installations
- Trucks and sub-compact cars
- Electric and hybrid vehicles where electrical efficiency matters
- Integrating with OEM systems that require hi-level turn-on compatibility
- Users exploring motorsports or motorcycle audio—see Element Ready™ options for dedicated models
Key points
- 300 Watt, 2-channel amplifier
- Boosted Rail Technology (BRT) for compact, efficient power delivery
- Does not use a switching power supply to generate rated power
- Variable hi-level DC offset turn-on for easier OEM integration
- Class-BR design and CTA-2006 compliant
- Includes Rockford Fosgate technologies: Punch EQ2, MEHSA3, DSM; Engineered in the USA
Fit and use
The PBR300X2 is sized for installations where chassis space and electrical load are limited. Its compact form factor and BRT design make it suitable for standard two-channel setups and for installations that need reliable operation without a large power supply footprint. The variable hi-level DC offset turn-on helps when connecting to many OEM head units.
What to know
This amplifier emphasizes efficiency and small physical size by using Boosted Rail Technology rather than a traditional switching power supply. It includes a hi-level DC offset turn-on feature to assist OEM-system installations and meets CTA-2006 compliance. For full electrical specifications, wiring details, and comp…
Highlights
Key features
- 1 Year Warranty
- High level inputs
- MOSFET output stage
- Variable 4-6 volt hi level DC offset voltage input turn-on control
- 12dB/octave Butterworth crossover
- Ultra compact chassis
- Punch EQ2
- MEHSA3
- CTA-2006 Compliant
- DSM
- Engineered In The USA
- Class-BR
More info
Manufacturer details
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.
See our Element Ready™ amplifiers designed specifically for Motorsports and Motorcycle applications.
Additional details
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.
See our Element Ready™ amplifiers designed specifically for Motorsports and Motorcycle applications.
Technologies
Punch EQ2
In the early 70's, Jim Fosgate studied the acoustical properties of automobiles. Utilizing a real-time analyzer
MEHSA3
MEHSA3 reduces MOSFET temperatures, lowers distortion, increases durability and prolongs the output device life
CTA-2006 Compliant
Power ratings on Rockford Fosgate amplifiers conform to CTA-2006 industry standards. These guidelines mean your
DSM
DSM - An industry-leading manufacturing process, DSM utilizes high-speed robotics, high-quality 1% tight-tolerance
Engineered In The USA
[av• uh•tahr -noun] 1. an embodiment or personification, as of a principle, attitude, or view of life 2. a
Patent: 8,212,620
Class-BR
To achieve higher efficiency with lower distortion, Rockford Fosgate's BR topology combines, cycle-by-cycle, an
Specs
Specifications
28
| Number of Channels | 2 |
| Total Power (Sum of Rated Power) | 300 Watts |
| Rated Power (RMS Continuous Power) | 100 Watts x 2 @ 4-Ohm 150 Watts x 2 @ 2-Ohm 300 Watts x 1 @ 4-Ohm Bridged |
| Dynamic Power (PVC/PowerCube®) | 114 Watts x 2 @ 4-Ohm 160 Watts x 2 @ 2-Ohm 387 Watts x 1 @ 4-Ohm Bridged |
| Bridgeable | Yes |
| Frequency Response | 20Hz - 20kHz +/-3dB |
| Input Sensitivity | 150 mV - 11 V |
| Circuit Topology Class | Class BR |
| Efficiency (average) | 68% @ 4-Ohm |
| Total Harmonic Distortion (THD+Noise) | 4-Ohm: <1.0% 2-Ohm: <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 |
| 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 |
| Cooling | Convection |
| Operating Voltage | 9 - 16 VDC |
| Recommended Fuse (not included) | 50 A |
| Average Current Draw (13.8V Music) | 23 A |
| Max. Current Draw (13.8V Sinewave) | 45 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 | 2.8 Lbs. (1.27 Kg.) |
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Installation resources
Wiring diagrams
10
Wiring Diagram #1
Source: Rockford Fosgate
Wiring Diagram #2
Source: Rockford Fosgate
Wiring Diagram #3
Source: Rockford Fosgate
Wiring Diagram #4
Source: Rockford Fosgate
Wiring Diagram #5
Source: Rockford Fosgate
Wiring Diagram #6
Source: Rockford Fosgate
Wiring Diagram #7
Source: Rockford Fosgate
Wiring Diagram #8
Source: Rockford Fosgate
Wiring Diagram #9
Source: Rockford Fosgate
Support
Return Authorization
If you bought this product from Onkar Electronics, use the Contact Us page on the Onkar Electronics website and we will help with return authorization and warranty support. If you purchased it from another dealer, contact that authorized dealer first for return assistance.
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