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Hifonics BG-4000.1D Brutus Gamma Monoblock Super D Class 4000 Watt Car Audio Sound System Subwoofer Speaker Amp with Bass Knob, Remote

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Availability: In Stock.
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Arrives Tuesday, Aug 5
Order within 13 hours and 9 minutes
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Model: 4000 Watt Monoblock


Features

  • POWERFUL SOUND: Deliver powerful sound to your speakers and subwoofers with this Super D Class, 4,000-watt, mono car audio amplifier; Wired bass remote included
  • OPERATION: Control your sound with mono only operation, variable electronic crossover, and electronic equalizer capabilities; Monitor overload and speaker short protection with illuminated indicators on the amplifier end panel
  • OUTPUT TECHNOLOGY: Ultra-Fi MOSET output device technology and classic Hifonics aluminum construction for powerful sound, efficient cooling, and minimal distortion
  • CONNECTORS: Secure molded connection terminal with easy-to-access, angled ports for all power, ground, and speaker connections and high-temperature, impact-resistant, nickel-plated connectors; Nickel-plated connectors deliver efficient high/low level audio, crisp sound, while providing a secure and erosion-resistant seal
  • POWER: Power ratings: @ 1 ohms - 1 channel x 4,000 watts; @ 2 ohms - 1 channel x 2,200 watts; @ 4 ohms - 1 channel x 1,100 watts; Dual coil Pulse Width Modulated power supply keeps voltage constant through Ultra-Fi output devices

Manufacturer: MAXXSonics


Maximum Supply Voltage: 12 Volts (DC)


Mounting Type: Car Mount


Brand: Hifonics


Number of Channels: 1


Manufacturer: MAXXSonics


Maximum Supply Voltage: 12 Volts (DC)


Mounting Type: Car Mount


Brand: Hifonics


Number of Channels: 1


Output Power: 4000 Watts


UPC: 806576231646


Item Weight: 13.52 pounds


Item model number: 4000 Watt Monoblock


Date First Available: November 30, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Aug 5

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews


  • Resilient
Model: 1600 Watt 4 Channel
Honestly it overheats sometimes, but I've had it for a while before I went more professional with Sundown & Deaf Bounce. I must say though I pushed this thing, had it running speakers and a subwoofer damn near maxing it out every time I drive, and it still works like a champ!
Reviewed in the United States on June 16, 2025 by Lake Kastanek

  • Great amplifier for the money!
Model: 4000 Watt Monoblock
The media could not be loaded. So far this amplifier is pretty impressive. Makes tons of power and looks great. You will definitely need to upgrade your electrical a bit to safely run this amplifier an extra battery to support up to 3000 watts RMS.
Reviewed in the United States on December 8, 2024 by Jonathan Jonathan

  • Happy.
Model: BG-1900.1D
Wanted a hifonics amp for awhile after watching a video on youtube with someone using a 1606D brutus. Heard stories and all this other stuff about hifonics in recent years, so I was hoping I wouldn't be let down. I don't know how the amps are now compared to the old ones, but this one makes me happy. My current setup is nothing fancy, stock stereo for now, kicker KISLOC2, and 2-12" pyramid subs in pyramid bandpass box. I haven't figured a way to wire in my amp fully yet but I have 4 gauge knukonceptz wire to use. I used a 6 gauge jumper cable with one side cut off to test the amp with. So far I'm running it mostly untouched, only thing changed was gain. For my setup it might be overkill, but I'm happy with it for sure. It did come with a hole in the box, nothing missing or damaged however. *Update* 12/28/23 It's a beast. The pyramid speakers didn't last at all, expected as they were cheap. Got 2 skar 12s rated 1600w. They flex like crazy, my car drops in rpm at lights if volumes left up. Again, happy with this purchase. ... show more
Reviewed in the United States on August 29, 2022 by Dillon Lane Dillon Lane

  • Junk...worst amp of all time!
Model: 1600 Watt 4 Channel
This is a piece of junk. Won't turn off until u remove the power cord. I'm immediately requested a refund and this company keeps saying they sent me a prepaid label but never did! Amazon refused to help too. I paid almost 200$ for this. Amazon keeps telling me it's a 3rd party company even tho I ordered from Amazon! I guess I'm stuck with a piece of junk!🤬🤬 ... show more
Reviewed in the United States on June 13, 2025 by Dustin Sipes

  • Worth the money major upgrade
Model: 1000 Watt 4 Channel
So it began with a high phonics Zeus model which sounded great I had for JL audio speakers, C series, components in the front coaxial in the back. Everything sounded good amplifier ran nice and cool no issues. Read about the Brutus series saw that I had a couple extra features I liked it had better power transfer to sound. It has less distortion and uses power more efficiently. I installed on the same footprint it was the same footprint as the Zeus but what a difference. The base output was stronger the highs were clearer overall song quality was totally noticeable. I’ve been doing car audio for 25 years and I was very impressed with these amplifiers. But if I was starting from scratch I probably would’ve just bought the Brutus to begin with. I also just ordered a 1900 Brutus mono amp that’s on the way that is going to be an upgrade from the Zeus 3300 will see how it sounds ... show more
Reviewed in the United States on May 3, 2022 by maxx maxx

  • Replaced amp with warranty A++++
The amp is truly a great, I came back to give 5 stars!!! UPDATE: The amp was tested and replaced with the manufacturer's warranty. Thanks so much for all your help, they helped me get in touch the the right ppl to get this issue resolved. Would deal with again!!!! This amp is a piece of crap. I took out my old amp, put this new one in... It has never worked right, has hardly any sounds at all...I have contacted the seller and am dealing with the manufacturer, ill give a update as I get it... ... show more
Reviewed in the United States on September 21, 2020 by China LeBlanc

  • Nice power and features for the money
Model: BG-1900.1D
Using this to push two 10-in Kickers each rated at 350 watts. This amp provides more than enough muscle to do the job with my set without even warming up. The power I'm getting coupled with how many options exist to tune the output floats my boat really well. The amp is well-made, feels very sturdy, was easy to install, looks great, and isn't so overly large. Do your research though. This amp, for what I am doing, is probably overkill. There are a number of YouTubers who have reviewed/tested this line of amps, and for me the performance I'm getting so far validates what I've seen out there over the past year or two. Pleased so far. ... show more
Reviewed in the United States on September 14, 2022 by RobC

  • Good Amp for the price.
Model: 1600 Watt 4 Channel
Have this Amp running two 4 inch and two 6 inch. And two kicker 12 inch the Amp sounds great but gets hot and shuts off the much. Even use a external fan and still gets really hot.
Reviewed in the United States on September 3, 2024 by James J.

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