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Item#: 9SIA4T31X23749

Rockford Fosgate PBR300X4 300 Watt 4-Channel Amplifier for Compact Sub Systems

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  • Rockford Fosgate
  • Bridgeable
  • Class BR

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

PBR300X4 - 300 Watt Amplifier with Boosted Rail Technology

To achieve higher efficiency with lower distortion, Rockford's BR topology combines, Cycle-by-Cycle, an indirectly coupled high/low voltage rail linear topology with a switched high/low voltage linear rail topology. This combination yields an unsurpassed power density (watts per cubic inch). In addition, this patented technology allows the chassis design to be much smaller than traditional sized amplifier - 1.53" x 4.25" x 6.75" - making this amp a great solution for smaller stealth installations, motorcycles and recreational vehicles. In fact, now, with the introduction of the Rockford Fosgate RFKHD9813, installing the PBR300X4 into select 1998 - 2013 Harley Davidson motorcycles has never been easier. With unparalleled technology, flexible installation options, and big power from such a small footprint Rockford Fosgate has ensured that everyone can put a little Punch in any system.

PBR300X4 - 300 Watt Amplifier with Boosted Rail Technology
MEHSA - Max Efficiency Heat Sink Application

MEHSA3 is a proprietary process that yields up to five times better heat transfer than traditional FET mounting techniques, using the exact same components. A multi-layer insulated metal substrate operating with minimal thermal resistance spreads heat both downward & outward to quickly dissipate heat from each device across the heatsink. This process allows Rockford Fosgate to squeeze more watts per cubic inch from every output device as well as provide consistent thermal stability. The higher power handling results in a 20% reduction in thermal impedance.

PBR300X4 - 300 Watt Amplifier with Boosted Rail Technology
DSM - Discrete Surface Mounted Components

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.

PBR300X4 - 300 Watt Amplifier with Boosted Rail Technology
General Features:
  • Punch Series BR Full Range 4-Channel Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 75 watts x 4 chan.
      This amplifier is only capable of operation at 4-Ohm
  • Features Rockford Fosgate's Class-BR Topology
  • CEA-2006 compliant amplifier
  • 2/4 channel input switch
  • Ultra compact chassis
  • MOSFET output stage
  • Boosted Rail amp technology
  • Convection cooling design
  • Extruded aluminum heat sink
  • Low level RCA input connection
  • High level speaker input connection
  • 12dB / Octave Butterworth crossover
  • Selectable High-Pass / Low-Pass Filter @ 80 Hz
  • Detachable Compression Terminals
  • LED power (blue) and protect (red) indicators
  • Variable 4-6 volt hi level DC offset voltage input turn-on control
  • Features MEHSA3 (Maximum Efficiency Heat Sink Application - gen. 3)
  • Perfect for smaller stealth installations
  • Great for motorcycles and recreational vehicles
  • Wiring w/ Mounting Plate for Harley-Davidson Motorcycles Available: Rockford Fosgate RFKHD9813
  • 16 Gauge speaker wire output terminals
  • 10 gauge OFC power and ground wiring is recommended for installation.
  • 1-year Manufacturer's Warranty
    • Get a 1 Year Extended Warranty by adding a qualifying amp kit to order:
      • Rockford Fosgate RFK10
      • Rockford Fosgate RFK10I

PBR300X4 - 300 Watt Amplifier with Boosted Rail Technology
Amplifier Specifications:
  • Input sensitivity:
    • Low level: 150mV - 4V
    • High level: 400mV - 11V
  • Operating voltage: 9 - 16 VDC
  • Recommended fuse rating: 50 A x 1 
    (not included)
  • Max. current draw (13.8V Sinewave): 40 A
  • Average current draw (13.8V Music): 20 A
  • Frequency response: 20 - 20,000 Hz, +/- 1 dB
  • Total harmonic distortion: <1.0%
  • Signal to Noise Ratio: =100 dB
  • CMRR: >55 dB @ 1 kHz
  • Damping Factor: >200
  • High-Pass: Selectable 80Hz @ 12dB/Octave
  • Low-Pass: Selectable 80Hz @ 12dB/Octave
  • CEA-2006 Power Rating: 75W x 4 @ 4O =1.0% THD+N
  • Weight: 3.038 lbs
  • Dimensions: 6.75"L x 4.25"W x 1.53"H
PBR300X4 - 300 Watt Amplifier with Boosted Rail TechnologyPBR300X4 - 300 Watt Amplifier with Boosted Rail TechnologyPBR300X4 - 300 Watt Amplifier with Boosted Rail Technology

General

|
Brand
Rockford Fosgate
Series
Punch

Feature

|
Type
Amplifiers

General

|
Amplifier Class
Class BR
Amplifier Channels
4 Channels

Power

|
Max Power
300W
RMS Power
75 Watts x 4 @ 4-Ohm

Specification

|
Frequency Response
20Hz - 2kHz +/-1dB
Bridgeable
Yes

Feature

|
Brand
Rockford Fosgate
Warranty, Returns, And Additional Information
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  • Beach Audio

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    • Rockford Fosgate PBR300X4 300 Watt 4-Channel Amplifier for Compact Sub Systems
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    Ships from United States.

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  • New : A brand-new, unused, unopened item in its original packaging, with all original packaging materials included. Original protective wrapping, if any, is intact. Original manufacturer's warranty, if any, still applies, with warranty details included in the listing comments.
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  • Used - Like New : All of the instruction booklet or artworks are within the original case and showing no wear and tear. The disc has no visible scratch and in working condition. DLC content may have already been redeemed.
  • Used - Very Good : All of the instruction booklets or artworks are within the original case but showing minimal wear and tear. The disc has light scratches and in working condition. DLC content may have already been redeemed.
  • Used - Good : Either the instruction booklet or the artworks are missing from the original case and showing wear and tear. The disc has light scratches and in working condition. DLC content may have already been redeemed.
  • Used - Acceptable : The instruction booklet and the artworks are missing from the original case and showing wear and tear. The disc has scratches but in working condition. DLC content may have already been redeemed.
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