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Serious Power. Seriously Compact.
- Rated RMS Power: 50 Watts x 4 @ 4-Ohm OR 100 Watts x 4 @ 2-Ohm OR 200 Watts x 2 @ 4-Ohm Bridged
- Full Range Class D topology
- Differential inputs with high level auto turn-on feature
- 8 AWG power/ground connector
- Remote-Out feature when using high level inputs
- Real time output and power supply thermal sensing
- Selectable Fixed 12dB/Octave Butterworth Crossovers
- Compact design for stealth installations (1.5" x 4.25" x 6.75")
PBR400X4D
The Punch PBR400X4D is a full-range 4-channel amplifier that is small enough to fit in just about any application but packs a Punch with 400 Watts RMS of power! The BRT (Boosted Rail Technology) allows the PBR400X4D to be compact and efficient while providing power on demand. The BRT also has a variable hi-level DC offset turn-on circuit for easy installation into any OEM system.
Our integrated level setting technology called C.L.E.A.N (Calibrated Level Eliminates Audible Noise) helps to quickly setup the amp output controls by removing the guesswork & eliminating any speaker damaging distortion. This amp is ideal for UTVs, motorcycles, or compact mobile installs, not only because of its size, but because it doesn’t suck a lot of juice from your electrical system.
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
Dual Selectable Crossovers Improve Flexibility
Installation flexibility is improved by the addition of dual, selectable high pass crossovers. With crossover points at 60Hz and 80Hz, you can now better set up the output of the amplifier to match the connected speaker
ECNETWRKR
2025-08-14 16:57:53
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.
Paulette Spencer
2025-08-11 18:52:05
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!!
Erik
2025-07-26 12:56:36
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.
luke
2025-06-24 11:17:44
Sounds clear and powerfull
Gary A.
2025-06-23 15:27:11
It’s easy install and it’s loud for my MC.
Streetman12
2025-06-11 18:43:56
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!
DracoWhite82
2025-03-29 13:02:58
Great sound, perfect size, very easy to install
Brandon
2025-02-26 11:47:25
I used this to replace the crappy Harman Kardon amp on my 2012 Street Glide. Super easy install if you’ve ever had experience installing an amp. I’m using the high pass filter to run 4 speakers and it produces a ton of sound with very little use on the gain. Plenty of power left to upgrade to better speakers.
Jassimalaskar
2025-01-28 16:41:20
Cool
Dennis B.
2025-01-14 15:15:28
Man so stoked about this amp, put it in did the set up and adjustments, no longer need the volume dial at max, now it’s up to 25 and I can’t hear my Harley anymore, PERFECT!!!!!!
Shy
2024-12-19 12:32:18
Works amazing - 8 months later and still no issues - great product and service
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