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Rockford Fosgate PRIME R300-4

300W Prime Series 4-Channel Amplifier

Product videos
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• 50 Watts x 4-Chan. @ 4 Ohms
• 75 Watts x 4-Chan. @ 2 Ohms
• Selectable Bass Boost
• 2-Way System Protection Circuitry
• Extruded Aluminum Alloy Convection Heat Sink

Learn more about the r3004

Good news and a little bad...

This item has been discontinued

But you may be interested in the newest model that's available.

r300x4 thumbnail

Rockford Fosgate Prime R300X4

OUR PRICE: $249.99

View item

Product Highlights


• 50 Watts x 4-Chan. @ 4 Ohms
• 75 Watts x 4-Chan. @ 2 Ohms
• Selectable Bass Boost
• 2-Way System Protection Circuitry
• Extruded Aluminum Alloy Convection Heat Sink

Description


Rockford Fosgate brand icon

Authorized dealer

  • Prime Series 4-Channel Class A/B Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 50 watts x 4 chan.
    • 2 ohms: 75 watts x 4 chan.
    • Bridged, 4 ohms: 150 watts x 2 chan.
  • MOSFET power supply and output stage
  • LED power and protect indicators
  • Bass Boost/EQ details: selectable bass boost (0, 6, 12 dB at 45Hz)
  • 4/3/2 channel operation
  • 2-Way System Protection circuitry (overload and speaker short protection)
  • Adjustable gain from 150mV to 8V
  • Heavy duty extruded aluminum alloy convection heat sink for extreme heat dissipation
  • Nickel-plated RCA level inputs
  • Nickel-plated screw terminals
  • Variable high-pass filter (80 Hz)
  • Variable low-pass filter (50-250 Hz, 12 dB/octave Butterworth)
  • CEA-2006 compliant amplifier
  • Frequency response: 20-20,000 Hz
  • Dimensions: 17.09"L x 7.67"W x 2.40"H
  • 8-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • 1-year SonicElectronix.com warranty

Product history:

Rockford Fosgate R300X4 thumbnail
(newest, current model)
Rockford Fosgate R300-4 thumbnail
(previous model, replaced by Rockford Fosgate Prime R300X4)

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
50 watts x 4 channel
RMS Power @ 2 ohms
75 watts x 4 channel
Bridged RMS Power
150 watts x 2 channel
Amplifier Specifications
Series
Prime Series
Amplifier Class
A/B
Number of Channels
4-Channel
Total RMS Power Output
300 watts
Maximum Input Gauge Size
8 AWG
Minimum Impedance Unbridged
2 ohms
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
1%
Speaker Level Inputs
No
Preamp Outputs
No
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
80 Hz
Low-Pass Crossover Frequency
50 - 250 Hz
Signal-to-Noise Ratio
70 dB
Bass Boost
0, 6, 12dB
Remote bass/level controller
No
Fuse Rating
25A x 2 
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Item Details


Manufacturer:

Model Number:

R300-4

Weight:

9.00lbs

Internal SKU:

r3004

Internal Product ID:

19566

Product and How-to Videos


  • 3Sixty3 Aftermarket Setup Wizard Tutorial
  • How To Install an Amplifier: Car Amplifier Basics Part 2

Customer Ratings & Reviews



5 star
79%
4 star
21%
3 star
0%
2 star
0%
1 star
0%



Durability
4.8
Value
4.9
Features
4.7
Design
4.6
Usability
4.9

Customer Reviews

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r300.4

I have this amp powering all my pioneer door speakers, i play it loud for extended amounts of time and no overheating at all, great sturdy amp at a unbeatable price.

By Maxwell on June 10, 2010

27

found this helpful.

wow

wow ok so before this i had a sound storm 4 channel to power all 4 speakers now i have this baby and man does it make a difference!!!! the sound is so clear and loud. Now my 2 12s are in perfect match with my speakers!

By jr on September 19, 2012

25

found this helpful.

GOOD AMP

I don't have a whole lot of experience with car amps, but my home systems have always been the envy. My friends would spend twice as much as me, and would eventually just have to concede that my system had the best sound. I know what I'm doing. My electronics background, and years as a musician with perfect pitch hearing is my gift. I feel I hit it right on the mark again in building my relatively inexpensive car system, starting with this amp!!!
The amp is clean, and loud. Plenty loud for the little Nissan I have it in.
In a larger sedan, I might want to step up the watts, but I like it loud. I have this pushing the two front, and two rear speakers, with a separate powered sub. It was stinking hot this summer, and it's stinking cold now!!! I had no problems what so ever. I didn't wait till the car cooled down any before I cranked it up, and the amp handled all that heat in my black car.

By John on December 23, 2010

24

found this helpful.

Awsome amp!

I have this amp running 4 infinity reference 4x6 plates. My vocals are amazing! This amp doesn't get hot at all, and underrated in power. My birth sheet says 345 watts. To good to pass up on this product, a win win situation!

By B. J. on August 22, 2010

25

found this helpful.

Rockford amp R300-4

Awesome sound and great price. I replace my old Power Acoustic 400 × 4 with this Rockford amp, and believe me, it sounds like a whole new system. A lot more powerful and stronger mids plus clear highs, what else you can ask.

By Martin on September 17, 2013

23

found this helpful.

good amp but not a thumper

Amp works good. Watch your specs. The amp does what is says and that's it. Can't go on low ohm subs when bridged mono. If the rated specs are what you need then I would give it 5 stars. It sounds good and performs excellent. However, that's only 150 watts max per sub. Most subs require much more.

Excellent mid and tweet amp. No doubt

By itsmedamnit on July 12, 2011

24

found this helpful.

Great buy.

This is a good amp for 4 door speakers, its not small but it still fits under the seat in my truck. Sounds great, I love it!

By Mike on December 26, 2010

24

found this helpful.

rockford fosgate prime speaker

like the speaker

By bob on November 23, 2010

25

found this helpful.

amazing!

I love all RF products! this cheap amp literally pushes my cars speakers to their limits!
i dont have top notch audio, cause im a college student and i cant afford to spend 500 on a pair of mids/highs. But i do have 150/pair speakers in front and back on doors. JBL, to be exact.
Great amp!

By mark on January 8, 2014

23

found this helpful.

great product

This product is wonderful i have rockford before but i just love the look and style of this model

By Brandon on February 9, 2010

23

found this helpful.

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