Skip to: | - A great place to buy computers, computer parts, electronics, software, accessories, and DVDs online. With great prices, fast shipping, and top-rated customer service - once you know, you Newegg.

If you are reading this message, Please click this link to reload this page.(Do not use your browser's "Refresh" button). Please email us if you're running the latest version of your browser and you still see this message. - Computer Parts, Laptops, Electronics, HDTVs, Digital Cameras and More!

  • Back2School
  • Wish List
  • Feedback
  • Help
Search all
Home > 
Automotive > 
Car Electronics > 
Car Amplifiers > 
Rockford > 
Item#: 9SIA15511G6501
Rockford Fosgate 300W 4 Channels Bridgeable Amplifier

  • Pin It
  • Email this page
ICON Loading...
  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Rockford Fosgate amplification at an unbelievable value. The R300-4 4-channel amplifier is so versatile, it will be the only amplifier your system needs. Full-range or component speakers on the front channels and a single R1S410 10" or R1S412 12" woofer bridged/mono on the rear. A perfect addition for your car, if you love music, the Rockford Fosgate R300-4 is necessary.

  • newegg CEA-2006 Compliant Compliant with the CEA-2006 standard, the Rockford Fosgate R300-4 Bridgeable Amplifier provides optimized system efficiency and high Signal-to-Noise ratio.
  • newegg 300W Peak Power The Rockford Fosgate R300-4 delivers a maximum of 300W output power to drive all your woofers, speakers and other audio devices.


Rockford Fosgate




Amplifier Class
Class AB
Amplifier Channels
4 Channels


Max Power
RMS Power
50 Watts x 4 @ 4 Ohms

75 Watts x 4 @ 2 Ohms
Bridged Power
150 Watts x 2 @ 4 Ohms


Frequency Response
20Hz - 20KHz
Built-in Crossover
Crossover Frequency Range
Front Channels High-Pass (HP): 80Hz @ 12dB/octave Butterworth

Front Channels Low-Pass (LP): 50Hz-250Hz @ 12dB/octave Butterworth

Rear Channels High-Pass (HP): 80Hz @ 12dB/octave Butterworth

Rear Channels Low-Pass (LP): 50Hz-250Hz @ 12dB/octave Butterworth
Bass Boost Control
Front Channels Punch Bass: 0dB/+6dB/+12dB @ 45Hz

Rear Channels Punch Bass: 0dB/+6dB/+12dB @ 45Hz
CEA-2006 Compliant
I/O Ports
Signal Input Low Level: 2 RCA pair

Power Input Connector: Screw terminal barrier strip

Speaker Output Connector: Screw terminal barrier strip

Power Wire Gauge: 4 AWG

Speaker Wire Gauge: 8 AWG
2.40" x 7.67" x 17.09"


Heat Sink Type: Extruded Aluminum

Cooling: Convection

Manufacturer Warranty

1 year limited
1 year limited
Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
  • Read full details

Do you own this product? Write a Review

ICON Loading...

Filter Results

  • Christopher D.
  • 1/12/2011 8:17:43 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat!

Pros: Great sound. I run in 3 channel mode with my sub bridged on the rear channel. I'm very impressed with the built in crossovers. The high cutoff is just right. I'm able to drive my front channel speakers without bogging them down with excessive bass. The amp in general is much louder than I expected it to be.

Cons: The amp is a bit too long. I like to mount my amp under my driver's seat. It works ok in my car but I could see it being a problem for others.

Other Thoughts: Be sure to install this with some good cables.

Did you find this review helpful? Yes No

ICON Loading...
Are you an E-Blast Insider? Subscribe Newegg e-Blast
Shop without retyping payment details. Secure shopping made faster.
Check out with PayPal.

Home > 
Automotive > 
Car Electronics > 
Car Amplifiers > 
Rockford > 
Item#: 9SIA15511G6501
Shop by Region: United States | Canada | China | Taiwan
VeriSign Click for the BBB Business Review of this Computers - Supplies & Parts in Whittier CAThis site protected by Trustwave's Trusted Commerce program Inc500
Policy & Agreement | Privacy Policy  © 2000-2015 Newegg Inc.  All rights reserved.
If the Adobe Reader does not appear when you click on a link for a PDF file, you can download Adobe Reader from the Adobe web site.