

⚡ Dominate your soundscape with Brutus-level bass power!
The Hifonics BXX4000.1D is a Class D monoblock amplifier delivering a massive 4000W RMS at 1 Ohm, engineered for professional-grade subwoofer performance. Featuring a precise subsonic filter (15Hz-35Hz) and a high signal-to-noise ratio (>95dB), it guarantees powerful, distortion-free bass with rock-solid reliability—making it a top choice for serious car audio enthusiasts.
| ASIN | B07942464C |
| Best Sellers Rank | #108,138 in Electronics ( See Top 100 in Electronics ) #224 in Car Mono Amplifiers |
| Customer Reviews | 4.3 4.3 out of 5 stars (296) |
| Date First Available | January 18, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 13.42 pounds |
| Item model number | BXX4000.1D |
| Manufacturer | Hifonics |
| Other display features | Wireless |
| Product Dimensions | 27 x 10.3 x 3.7 inches |
M**Z
BEST AMP I'VE EVER OWNED
Best amp I've ever owned No overheating, never goes into protect mode, never disappointed Definitely buying a 2nd one for my setups
D**.
Lots of power!!!!
I have this beast pushing 1 Skar ZVX 15. This was one hell of an Amp upgrade!! Biggest best Amp I've ever had. I've got 0 gage going to it. With a XS 3400 battery in the back. Excellent Amp!!!
A**R
Good product will buy again
Had the amp wired up to my double skar 5000w loaded pack, pushed out plenty of power and sounded amazing had the wipers in my jeep bouncing an inch off of the windshield lol. I definitely recommend because it wasn’t breaking the bank while still pushing out power
T**A
Slaps!
Slamming
J**N
Great amp
The only complaint I have is a VERY small thing, it was a faulty bass knob but that’s it. Everything else is perfect. Pushes my 2 sundown x12 like it’s nothin.
A**.
Please read
So durning normal play the amp shut down under a normal load . Powered into protect. We cycled the key off and back on, and the amp produced a high pitch squeal and back into protect. Me being a 30 mecp level one certified audio installer, went back to the amp, unplugged the RCA inputs and dialed all the gains down. Again cycling the key, the amp squealed and went into protect. Considering I used to work for American bass, not just in sales but also as a equipment repair tech, I decided that there a problem. So after disconnecting this amp, I opened it up. Upon opening I noticed right away that the tamper seals were previously split. Once I removed the cover, the pictures you see is what I found. This was not a brand new amp as advertised but a referb as you can tell by the solder points I am pointing to. When hifonics was made by API (audio products inc) these were unstoppable. The quality now...... I'm not going to comment. The pics speak for themselves. Fyi the output transistors part number hy4008w are 1.50$ a piece. I'm going to rebuild this amp not using these poor quality components. Just so you know this is what you are getting. It's a shame also that the quality of these I would use to chock my wheels with now as opposed to having being able to say I got a brutis 4k.
D**Y
Good til it burns up lol
Had since 2008 and it finally burned up with 2 kicker comp vx 15s Gave it 3 stars cuz I did put it through hell lol
J**N
Get this mf
The best subwoofer in the game I beating them to 10000 w bridge 2 amps two highs and two lows and they don't get hot at all as long as u wire everything up the rite way and don't have ass it use 0 gage top quality wires at all times get the high $ ones I run stinger wire everything and get a good Deck 2 top dollar trust me
D**N
Sounds great with 2 Americanbass subs 👌
P**N
Great sounding amp lots of power
M**E
Amazing
Trustpilot
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