Customer Ratings & Reviews

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!

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.

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.

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.

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

rockford fosgate prime speaker

like the speaker

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!

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!

great product

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

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!

Will continue to buy from Sonic!

I was looking for an inexpensive amp to run the factory speakers in my 2003 Maxima.
-Amp works great
-Sonic ships to Canada and takes care of brokerage/duty at a reasonable price
-I will continue to use Sonic

Great Deal!!!

This was a great product for a really great price.

prime!!1

amp does its job. does get a little warm at times when run very hard

By Carson on July 15, 2015 Verified purchase

Great amp

I purchased this amp back in 2009 from my local car audio shop. at first i had some Memphis 6x9 and some 4x6 kickers. They sounded amazing. I later hooked up some 4x6 JBL power speakers and they sounded like 6.5 great mid-bass and clarity. anyways long story short i have hooked up different speakers to this amp and they all sounded great i currently have some 6x9 kickers and 6.5 PRV audio and some soundstream tweeters and it sounds fantastic.
Pros: its loud, clear, and reliable, I have taken 3 hour drives and had been bumping it almost non stop. (I did had to stop and put gas) the controls are easily accessible. easy to mount and you dont have to worry about the mounting feet breaking easily. doesn't get scratched up very easily eatheir.
cons: its somewhat bulky. on the instruction manual it says that it takes 4 gauge wire for power and ground but i could never get 4 gauge to fit unless you have some spades. it doesn't have high level inputs.

overall a great product and reliable.

Clean Straight up sound

I recently bought this amp and the sound, power, and price you cant beat. I am powering some diamond audio 6-1/2" components and factory 6x9s clean & pure sound. I recommend this amp to anyone who is looking for great undistorted sound. Pros- doesn't take up plenty space for the amount of power that it has, Cons-couldn't find any you cant go wrong buy this amp.

Rf

I have this bridged to two channels and it's running a pair of 6.5 component type r speakers to complete my 3 speaker system I got a 12 in type x, you'd need an expensive set up to beat the quality and power of this underrated amp, I completely recommend this even tho everything else in my car is alpine you cannot ignore how much amp you get for ur money

Great Amp, Great Price == Awesome performance

I would highly recommend this amplifier for anyone who wants tight, responsive bass. Make sure you have good subwoofers as this amp packs a punch! I would buy this over and over again!

Excellent Product

I have had several Rockford Fosgate products in the past. My last Rockford amplifier lasted 14 years. I have purchased many of their items from amps to speakers to head units. Very reliable product. I will continue to purchase Rockford products as well as recommend them to others.

rockford 4 channel

The rockford prime 300 is a good amp... Better than stock. I have this thing hooked up to 4 5.25 speakers and 2 3.5 speakers. I thought my car was not loud until I stepped inside my cousins grand prix. My system WAY louder and clearer. I would recommend this to a friend, because I get headaches just off vocals. The only con is that my speakers don't handle bass good enough(but that's whats subs are for). Love the way I can change db's by the flip of a switch.

Just what I wanted

Loud and clear just like the company claims.

Took care of everything, easy to set up and sounds great.

Cheap, simple to set up. Works excellently. It is a little large but still well concealed under the passenger seat of my '04 Camry and never ever has any heat issues (probably owing to the size). Hook it up for a full front stage sound system with subs and forget it exists. Just what I wanted. Also, I don't see the lack of crossover flexibility as a real negative. Most amps give you enough rope to hang yourself. This really has enough to cover what one would need in 99% of cases for 99% of the public.

Solid Amp

Solid amp at a low price.. Only powering some Alpine Type R coax's right now.. hopefully soon ill bridge it on some nice components.

Great Sound!

I'd highly recommend these speakers. I have them in the back of my Trooper powered from a 300W Rockford amp and they are amazing!!

great amp for your buck!

I'm basically a rookie in the car audio game workin for a shop with over 20 years in the game and me only 5 . but lemme just say i know my audio and i know how to make it last. but this amp is great by far better than anything else in this price range you cant go wrong unless your not hooked up properly the end great buy, but im ready for more power for my db drive mids and highs got over 18 speakers hooked up off two of these you can hear me way before you see me

Rockford Fosgate still great

I am using this amp to power my pillar tweeters and dash 4" speakers. It works great and I like the fact that it has fine tuning controls on the AMP itself.

Killer Value

Definitely a Rockford Rosgate amp, loud and clear. The lower end Fosgate amps would compare to other brand's high end amps. And just like all RF amps, this one is way underrated. My birth sheet shows 386 watts RMS, and the amp is rated for 300. Highly recommended!

wow

Wow I bought this amp to go with my other Rockford Prime speakers and it can easily over power and distort the 6x9"s and 6 1/2"s I may need to upgrade the speakers again.

good value good product

this product has worked perfectly from the moment i plugged it in! I am considering buying a new amp from u.

Great Value!

Really like it because of its features, power output and the overall quality it offers in terms of built and how it makes the speakers connected to it, have a well balanced sound between low, mid and highs. Long term durability wouldn't be able to give a rating because I only had it for a few months, though I wouldn't be concerned about it and I would recommend it. I have connected 4 JBL speakers.
Also at this price, performance and quality I had a hard time finding something similar

Great RF Quality!

To start my new system I needed a decent 4 channel amp at a low price. This amp is great! Basic functions but the sound quality makes any set of speakers sound amazing. Definitely recommend to anyone looking for quality on a budget.

Great amp for the price great quality

Pros- powerful, clear, adjustable for 4 speakers or 2 speakers and a sub. This amp over powers my kenwood speakers and makes them sound crystal clear all my friends are jealous of my vocals and think i payed over 200. Fast shipping from Sonic and the price is awesome.

Cons- really long amp for my lil car thats it

good amp

I bought this amp and put it on a pair of infiniti 6x9 and is sounds amazing. Good amplifier for the price.

Powers the entire system

I wrestled for sometime on which amp to go with as I was extremely limited on space, so I went with the fosgate 300-4. Im running a pioneer head unit, cadence 7v line driver as far as high end speakers I choose a pair of kicker 6.5's for the doors and kicker 6x9's for the rear and went with a kicker c124 sub. I am absolutely amazed by the bass and how clear the high end is. If you were in doubt about running "only 150 watts" to your sub(s) have no fear, this amp does a fantastic job. For the money you'll not find better.