To see product details, add this item to your cart. You can always remove it later.
Added to

Sorry, there was a problem.

There was an error retrieving your Wish Lists. Please try again.

Sorry, there was a problem.

List unavailable.
Other Sellers on Amazon
Added
Sold by: WoofersEtc
Sold by: WoofersEtc
(5831 ratings)
94% positive over last 12 months
Shipping rates and Return policy
Added
Sold by: Absolute Pro Music
Sold by: Absolute Pro Music
(4160 ratings)
75% positive over last 12 months
Shipping rates and Return policy
Added
Sold by: Absolute Pro Music Superstore
Sold by: Absolute Pro Music Superstore
(505 ratings)
93% positive over last 12 months
Shipping rates and Return policy

Rockford Fosgate PBR300X4 Punch 300 Watt 4 Channel Boosted Rail Amplifier

4.6 4.6 out of 5 stars 1,364 ratings

To see product details, add this item to your cart. You can always remove it later.
Eligible for Return, Refund or Replacement within 30 days of receipt
This item can be returned in its original condition for a full refund or replacement within 30 days of receipt. You may receive a partial or no refund on used, damaged or materially different returns.
4 Channel
300 Watt

Purchase options and add-ons

  • 4-Channel Car Amplifier
  • 50 watts RMS x 4 at 4 ohms (100 watts RMS x 4 at 2 ohms)
  • 200 watts RMS x 2 bridged at 4 ohms (4-ohm stable in bridged mode)
  • C.L.E.A.N. gain setup system includes test tone CD
  • Ultra compact and efficient design with dimensions: 6-3/4" W x 1-9/16" H x 4-1/4" D
See more product details

Frequently bought together

$269.99
Get it as soon as Tuesday, Apr 2
In Stock
Ships from and sold by WoofersEtc.
+
$34.99 ($17.50/Item)
Get it as soon as Wednesday, Apr 3
Only 1 left in stock - order soon.
Sold by Kustom Cycle Parts and ships from Amazon Fulfillment.
+
$18.69
Get it as soon as Wednesday, Apr 3
In Stock
Sold by Speece, Inc. and ships from Amazon Fulfillment.
Total price:
To see our price, add these items to your cart.
Details
Added to Cart
Some of these items ship sooner than the others.
Choose items to buy together.

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here [PDF ]

Feedback

Rockford

Rockford Fosgate PBR300X4 Punch 300 Watt 4 Channel Boosted Rail Amplifier


Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive.

Where did you see a lower price?

/
/
/
/
Please sign in to provide feedback.

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 9 x 6 x 3.4 inches; 2.54 Pounds
  • Item model number ‏ : ‎ PBR300X4
  • Date First Available ‏ : ‎ May 1, 2011
  • Manufacturer ‏ : ‎ Rockford Fosgate
  • ASIN ‏ : ‎ B004T163SY
  • Customer Reviews:
    4.6 4.6 out of 5 stars 1,364 ratings

Product guides and documents


Product Description

Serious Power. Seriously Compact.

300 watt 4 channel amplifier compact
  • Rated RMS Power: 75 Watts x 4 @ 4-Ohm
  • Full Range Class BR Topology
  • 2/4 channel input switch
  • 12dB/octave Butterworth crossover
  • High level inputs
  • Variable 4-6 volt hi level DC offset voltage input turn-on control
  • Ultra compact chassis (1.53" x 4.25" x 6.75")
PBR300X4

The Punch PBR300X4 is a full-range 4-channel amplifier that is small enough to fit in just about any application, but packs a Punch with 300 Watts RMS of power!

The PBR300X4 is designed for stereo front/rear systems where space is tight and may have a lower current capable charging system, but still need big power!

The Punch PBR300X4 uses our patented BRT (Boosted Rail Technology) for an ultra-efficient design that utilizes internal capacitors and power management components that store energy and dynamically boost rail voltage to create power on demand!

The PBR300X4 is not only compact & efficient, making it perfect for smaller vehicle installs such as motorcycles or recreational vehicles, but it has all the power you’ll need to keep your stereo system rocking!

amp for motorcycle boat marine utv off road hybrid compact

Input Flexibility To Meet Any Install Situation

The amplifier will accept both speaker level and RCA level signal types through the same inputs, allowing it to be integrated into OEM and aftermarket systems alike. This versatility makes the amplifier perfect for a wide variety of installations and vehicles

amplifier for compact tight small powerful

Small Stealth Package with Mounting Options Galore

The small footprint of the amplifier (1.5" x 4.25" x 6.75" ) allows it to be installed virtually anywhere. This means that aside from automotive use, its perfect for applications such as Marine, Motorsports and Motorcycle installs

Compare with similar items

This Item
Rockford Fosgate PBR300X4 Punch 300 Watt 4 Channel Boosted Rail Amplifier
Rockford Fosgate PBR300X4 Punch 300 Watt 4 Channel Boosted Rail Amplifier
Recommendations
Rockford Fosgate T1693 Power 6"x9" 3-Way Full-Range Speaker (Pair)
dummy
Rockford Fosgate P500X1BD Punch 500 Watt Class-bd Mono Amplifier
dummy
Rockford Fosgate P400X4 Punch 400 Watt 4 Channel Amplifier
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Price$269.99$159.99$389.99$339.99
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Wednesday, Apr 3
Get it as soon as Thursday, Apr 4
Get it as soon as Wednesday, Apr 3
Customer Ratings
Sound quality
4.5
4.7
4.9
4.5
Value for money
4.2
4.5
4.9
4.3
Easy to install
4.5
4.6
4.5
Sold By
WoofersEtc
Rockford Fosgate
Rockford Fosgate
Rockford Fosgate

Looking for specific info?

Customer reviews

4.6 out of 5 stars
4.6 out of 5
1,364 global ratings

Customers say

Customers like the power, sound quality, ease of installation, and size of the electronic component amplifier. For example, they mention it delivers great power at lower volumes, has decent features, and a good frequency range. That said, some complain about the performance, saying that it fails after 1-2 years.

AI-generated from the text of customer reviews

442 customers mention384 positive58 negative

Customers like the quality of the amplifier. They say it's a solid performer, excellent, and a great product. Some say that it'll power their speakers to a certain degree. Overall, customers are satisfied with the quality and performance of the product.

"...if they are not exactly audiophile quality, but this amp is a solid performer also and a definite upgrade to the Alpine 445U it replaced...." Read more

"...amp is perfect for my small jeep, no light dimming, not problems with my vehicle running, and everything sounds so much better now when compared to..." Read more

"...Small footprint with lots of power. I have its sister amp for the main cabin speakers, using all Rockford Fosgate wiring/distribution blocks...." Read more

"...you purchase a 10 AWG power kit for the install as well as good quality speaker wire. Rockford Fosgate sells both types of products...." Read more

211 customers mention190 positive21 negative

Customers are satisfied with the sound quality of the electronic component amplifier. They mention that it has great sound, is loud, and clear even at high volume. Some say that the device puts out far more volume than they could handle. Overall, most are happy with the product's sound quality and recommend it to others.

"...to max with the gain adjustments as mentioned above, and it is sufficiently loud for me (tiring on the ears at any higher volume/gain) but if I..." Read more

"...light dimming, not problems with my vehicle running, and everything sounds so much better now when compared to only two speakers..." Read more

"...I fixed these issues, been 2 weeks now sounding amazing with exactly zero issues!..." Read more

"I love this amplifier. The sound is great, the price is very attractive, and the small size made it very easy to mount...." Read more

173 customers mention166 positive7 negative

Customers are satisfied with the size of the electronic component amplifier. They mention that it's small enough to fit on top of the stereo, perfect for a motorcycle, and fits nicely anywhere. Some say that it fits nicely under their fairing just above the headlight. Overall, most are happy with the compact size and ease of installation.

"...and is small enough to fit under the seat...." Read more

"...Gotta say though, this amp is perfect for my small jeep, no light dimming, not problems with my vehicle running, and everything sounds so much..." Read more

"...Small footprint with lots of power. I have its sister amp for the main cabin speakers, using all Rockford Fosgate wiring/distribution blocks...." Read more

"...The sound is great, the price is very attractive, and the small size made it very easy to mount...." Read more

87 customers mention82 positive5 negative

Customers find the installation process of the electronic component amplifier to be easy. They mention that the kit makes wiring it up a breeze, making it easy to mount and adjust. Customers also appreciate the great instructions, saying that the amp is a snap to install on their Harley.

"...This made the installation easier as the power and ground lines were not sufficiently long enough to make connecting it directly to the amp very..." Read more

"...great, the price is very attractive, and the small size made it very easy to mount...." Read more

"...Everything about this amp is easy to use and it does the job...." Read more

"...off my chest let me just say this is a great amp for my FLHTK easy fit hook up and blows away more expensive units easily...." Read more

74 customers mention74 positive0 negative

Customers are satisfied with the value of the electronic component amplifier. They mention that it is excellent for the price, blows away more expensive units easily, and provides a low cost-high quality audio upgrade.

"I love this amplifier. The sound is great, the price is very attractive, and the small size made it very easy to mount...." Read more

"...Is it worth the price? I'm not sure about that.I use this to power an 8" R-F 'Punch'-series subwoofer at 2 ohms, 150-watt rms...." Read more

"...3M double stick tape on top of my deck (coulda done better) but it's cheap, quick, and provides some vibration dampening...." Read more

"Great quality for the price. Description is spot on. Sounds great" Read more

42 customers mention30 positive12 negative

Customers like the power of the amplifier. They say that it delivers great power at lower volumes, and provides lots of clarity and power to the speakers. Some mention that the amp is compact and well ventilated. Overall, customers are satisfied with the power and clarity of the product.

"...Hooking up the wires is a bit of a hassle. There are good clear indicators for the speaker wire pos/neg, and front/back, but the cable input is a..." Read more

"...For comparison, this setup now at middle volume is louder and more clear than the HK setup prior at full volume...." Read more

"...I put in the final fuse NOTHING, bummer, no power to unit!..." Read more

"This amplifier's main claim to fame is it's small size and efficient power consumption...." Read more

105 customers mention26 positive79 negative

Customers are dissatisfied with the heat produced by the electronic component amplifier. They mention that it gets very hot and can cause a hot spot or loss of connections. Some customers also report that the product has experienced overheating shutdowns.

"...Yes these amps are small enough for that! Many many overheating shutdowns later, I finally reinstalled the whole thing, new cables and all...." Read more

"...However this animal gets HOT... I mean REALLY hot, I mean like too hot to pick up with bare hands...." Read more

"...Have not had any problems with overheating as there is at least 1 inch of clearance around the amp as the company recommends for sufficient heat..." Read more

"...The amp does get warm but just need proper ventalation and install location to keep them from over heating...." Read more

21 customers mention6 positive15 negative

Customers are dissatisfied with the performance of the electronic component amplifier. They mention that it conveniently fails after 1-2 years once the warranty is expired, it barely lasts more than a year, and it has awful reliability. Some say that the power and ground melted together and that one of the components inside had blown up.

"...My issue is NOT with the product itself though it has gone bad within the warrantee period...." Read more

"This amp failed just under 6 months of use. Didn't blow the fuse, just quit." Read more

"...enclosure and couldn't be happier with the performance, it really fills in the lows that are lacking from the stock speakers...." Read more

"...Really rocked my 03 Electra Glide. 3 months in it went out. This was my 2nd one...." Read more

Best amp i ever had,does not get too hot,really consider this review before you buy.
5 Stars
Best amp i ever had,does not get too hot,really consider this review before you buy.
After reading reviews,my biggest concern was amp overheating so i purchased some computer fans of different sizes since they were inexpensive. I have been riding motorcycles with music for over 30years, with the last 3years using a pyle amp. After amp arrived i installed on my st1100 with a slim 60x10mm external fan on top. I went for a test ride in the streets of nyc(brooklyn)and cranked it up.the reviews were spot on, the sound clarity was exceptional. I have never heard music in my bike in over 30 years.Amp never got hot during 4 hrs ride,only warm to the touch.maybe it was due to the fan, or how stereo is mounted on the dash.(you can see the enclosed photos)Only time will tell how well this amp last but OMG I am so hooked, cant wait to go riding again. So to everyone not sure about getting the rf300x4, just get it dont procrastinate. I only paid $139 with amazon prime and so far it was worth it.P.S. thanks to all the motorcycle forums especially the Harley riders using this amp with helped me make my decision on the 300x4.i read hundreds of reviews before deciding.
Thank you for your feedback
Sorry, there was an error
Sorry we couldn't load the review

Top reviews from the United States

Reviewed in the United States on November 14, 2017
Style: 4 ChannelSize: 300 WattVerified Purchase
18 people found this helpful
Report
Reviewed in the United States on January 21, 2015

Top reviews from other countries

Translate all reviews to English
Ron Holman
5.0 out of 5 stars Excellent sound & powerful for it's size
Reviewed in Canada on July 28, 2022
Style: 2 ChannelSize: 300 WattVerified Purchase
Amazon Customer
5.0 out of 5 stars happy
Reviewed in Canada on June 26, 2020
Style: 4 ChannelSize: 300 WattVerified Purchase
mirko marini
5.0 out of 5 stars Perfetto
Reviewed in Italy on March 4, 2020
Style: 2 ChannelSize: 300 WattVerified Purchase
Amazon Customer
5.0 out of 5 stars Amp
Reviewed in Canada on January 24, 2024
Style: 2 ChannelSize: 300 WattVerified Purchase
Bram
5.0 out of 5 stars Very good product!
Reviewed in Canada on September 19, 2019
Style: 4 ChannelSize: 300 WattVerified Purchase