Rockford Fosgate Punch PBR400X4D Compact Chassis 400-Watt Full-Range 4-Channel Amplifier
Condition: New
Buy Now, Pay Later
As low as
/ mo
Learn more
- – Up to 36-month term if approved
- – No impact on credit
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
14 left in stock
Arrives
Tuesday, Feb 10
Recently Viewed
Features
- Our compact (1.5" x 4.25" x 6.75") PBR400X4D is small enough to fit in just about any application but packs a Punch with 400 Watts RMS of power!
- Versatile design can be used in either 2 or 4 channel configurations (RMS Power Output: 50 Watts x 4 @ 4-Ohm or 100 Watts x 4 @ 2-Ohm or 200 Watts x 2 @ 4-Ohm Bridged)
- Ultra efficient Class D full range design produces maximum power with minimal strain on the vehicle's electrical system. A great choice for both mobile installs as well as motorcycles and recreational vehicles
- High level inputs with auto-on feature as well as differential RCA inputs along with selectable fixed 12dbB/Octave Butterworth Crossovers make the PBR400X4D amp compatible with just about any installation
- Famous Rockford Fosgate build quality insures that the PBR400X4D will handle everything you throw at it! Full 1-year parts and labor warranty
Manufacturer: Rockford Fosgate
Brand: Rockford Fosgate
Model: PBR400X4D
Item Weight: 2.7 pounds
Item model number: PBR400X4D
Is Discontinued By Manufacturer: No
Manufacturer Part Number: PBR400X4D
Voltage: 12 Volts
Wattage: 400 watts
Date First Available: December 14, 2017
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Feb 10
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
I purchased this amp because I was adding a subwoofer to my boat. I have a Fusion UD-750 with 2 Fusion speakers and have now added a 10" Fusion subwoofer. I decided on this amp for the job, and I'm so glad I did! It fits in tight spaces and literally packs HUGE sound! I highly recommend this to anyone who is challenged with space and doesn't want to sacrifice sound or power.
...
show more
Reviewed in the United States on September 26, 2024 by ECNETWRKR
My music used to drown out at 40 mph on my Harley. I have the Rockford Fosgate head unit, 4- 5.25" speakers and 2- 6x9 speakers. The install was clean and easy. The amp size was perfect. My music is now louder and more clear than ever. The input and output clip settings are in the amp. I did not have to buy a sine wave meter. I just cannot believe the sound!! Crisp throughout the highs, mids, and lowers. Definitely can hear it on the interstate now. Thank you Rockford Fosgate for another great product!!
...
show more
Reviewed in the United States on October 23, 2024 by P Spencer P Spencer
I have been a fosgate guy for years . Super suprised with the power of this little amp and it is small enough to go anywhere . I use it on my 2015 dyna powering 2 full rage 6 inch fosgate speakers . Works perfectly
Reviewed in the United States on June 18, 2025 by Silverback
Sounds clear and powerfull
Reviewed in the United States on April 25, 2024 by luke
I had the same amp on my last street glide. Loved it so much I bought the same one for my new bike. Easy install and very user friendly for people like me who don't have a doctorate in audio engineering. Paired with some Rockford Fosgate 6.5s. Very powerful and great/clear sound at any speed.
Reviewed in the United States on April 1, 2024 by Erik
Installed this in a 2012 Harley Ultra, and paired with Harley stock radio (25w/channel), Hogtunes 2 ohm 6.5 front speakers (had to modify 5.25 mounts in batwing for them to fit), and 4 ohm 6x9 Polks in the saddle bag lids. I was amazed at the distortionless volume increase! Can hear the system clearly at highway speeds. The set up was straight forward but I didn’t receive the test tone cd needed to set the gains. There are multiple websites with free test tones that you can download to your smart phone or cd (in my case) or just set up with music from your radio. Also, the “auto-on” feature that was supposed to work with line-out setups with the radio didn’t, so I had to connect the “REM” input on the amp to a 12v source (cigarette lighter in my case), to get the amp to power up. Not a big deal, but just an extra step. Only have used this for about a month, so not sure of long term reliability but so far, it’s great!
...
show more
Reviewed in the United States on April 17, 2022 by Streetman12
Very impressed, bridged this to a set of 6x9 components in a miata. Together with a compact sub this go cart of a car ROCKS. I definitely recommend it
Reviewed in the United States on July 27, 2025 by Pinstriper
Great sound, perfect size, very easy to install
Reviewed in the United States on April 13, 2024 by DracoWhite82