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Hifonics BRX640.4

640W 4-Channel Brutus Series Class AB Bridgeable Power Amplifier

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• 80W x 4-Chan. @ 4 ohms
• 160W x 4-Chan. @ 2 ohms
• 320W x 2 Chan. @ 4 ohms
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• Ultra-Fi MOSFETS Circuit for Smooth Sound Quality

Learn more about the brx6404

Good news and a little bad...

This item has been discontinued

But you may be interested in the newest model that's available.

brx6164 thumbnail

Hifonics Brutus BRX616.4 4 Channel Amplifier

OUR PRICE: $134.99

View item

Product Highlights


• 80W x 4-Chan. @ 4 ohms
• 160W x 4-Chan. @ 2 ohms
• 320W x 2 Chan. @ 4 ohms
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• Ultra-Fi MOSFETS Circuit for Smooth Sound Quality

Description


Hifonics brand icon

Authorized dealer

Brutus BRX Amps: Brutal to Competition

Hifonics Brutus Crossovers

Accu-Cross Crossovers for Sound Shaping

The Gods have struck again from Mt. Olympus. The famous Brutus amplifier has gone through a redesign and now features a new look along with amazing sound. The design for the new Brutus BRX amplifiers has a blue illuminated underglow that gives the amplifier a floating appearance when properly mounted.

The molded and angled illuminated terminals add to the stylish design and also provide stress-free installation access. Accu-Cross crossovers allow for adjustments and sound shaping. The Ultra-Fi MOSFET power supplies ensure the amplifier can maximize its sound capabilities. The new Brutus BRX amplifiers take it to the next level, and are certainly a brutal amplifier.



Hifonics Brutus Terminals

Molded and Angled Illuminated Terminals

The full-range multi-channel Brutus BRX amplifiers all feature Super A/B Class technology. This complex circuitry was initially developed purely for the flagship Mt. Olympus amplifiers – however this superior technology was passed on to the Brutus line as well. This efficient circuitry allows for maximum sound quality while also ensuring maximum efficiency.

Initially Brutus amplifiers were only monoblock amplifiers by Hifonics, however for 2013 they deicded this amplifier series was too good to pass up, and added two-channel and four-channel alternatives to their purely subwoofer filled lineup. These new stylish multi-channel amplifiers were welcomed with open arms by the car audio industry, and have performed extremely well on the market since being released.


General Features:

  • Brutus Series 4-Channel Super AB Class Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 80 watts x 4 chan.
    • 2 ohms: 160 watts x 4 chan.
    • Bridged, 4 ohms: 320 watts x 2 chan.
  • Ultra-Fi MOSFETS Circuit maximizing power efficiency while improving sound quality
  • Wired remote bass level control available and sold separately (Hifonics HFR3)
  • LED power (green) and protect (red) indicators
  • Variable Bass Boost (0 to +10 dB bass boost)
  • Built-in system diagnostics
  • 4/3/2/1 Channel operation
  • Preamp RCA outputs to daisy chain multiple amps
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Heavy duty aluminum alloy heat-sink with illuminated Hifonics logo
  • Lighted connectors and blue wash of light from the underside of the heatsink
  • Input sensitivity:
    • Level: 200mV-6V
  • Variable high-pass filter (10-1,500 Hz)
  • Variable low-pass filter (30-150 Hz)
  • Frequency response: 10-45,000 Hz
  • 4 gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier.
  • CEA-2006 compliant amplifier
  • Dimensions: 15-15/16"L x 10-5/16"W x 2-1/2"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Product history:

Hifonics BRX616.4 thumbnail
(newest, current model)
Hifonics BRX640.4 thumbnail
(previous model, replaced by Hifonics Brutus BRX616.4 4 Channel Amplifier)

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
80 watts x 4 channel
RMS Power @ 2 ohms
160 watts x 4 channel
Bridged RMS Power
320 watts x 2 channel
Amplifier Specifications
Series
Brutus Series
Amplifier Class
A/B
Number of Channels
4-Channel
Total Peak Power Output
640 watts
Total RMS Power Output
320 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
2 ohms
Minimum Impedance Bridged
4 ohms
Speaker Level Inputs
No
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
10 - 15000 Hz
Low-Pass Crossover Frequency
30 - 250 Hz
Signal-to-Noise Ratio
90 dB
Channel Separation
80 dB
Bass Boost
0 - 10 dB
Remote bass/level controller
Optional (Accessory required and sold separately)
Fuse Rating
30A x 2 
Strappable
No
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

BRX640.4

Weight:

11.00lbs

Internal SKU:

brx6404

Internal Product ID:

67930

Product and How-to Videos


  • Hifonics Brutus BRX Car Amplifier | Maxxsonics @ CES 2013
  • Hifonics Brutus BRX Car Amplifiers (Mono, 4, & 5 Channel Amps)
  • How To Install an Amplifier: Car Amplifier Basics Part 2

Customer Ratings & Reviews



5 star
79%
4 star
14%
3 star
0%
2 star
7%
1 star
0%



Durability
4.3
Value
4.7
Features
5
Design
4.8
Usability
4.9

Customer Reviews

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Great Amp

Amp is used for my doors. Power four Infinity Kappa's. Real HQ amp. Hifonics is CEA Certified and this amp is a great example why. True power is being distributed to each speaker.

Pros: CEA Certified amp. Very durable. Terminals hold wire very well. Looks good.

Cons: none

I would recommend this amp to anyone.

By Mitch on January 31, 2014

45

found this helpful.

great amp Hifonics BRX640.4

This amp is reall good, I have it bridged to two p2 fosgates 12" on a thirdgen camaro convertible in a sealed box. Man it hits hard.. the amp don't get hot at all..it looks awesome at night...

By smirk on June 6, 2014

46

found this helpful.

love it

Everything works perfect, great quality only thing is it doesnt come with remote knob so i just bought an rca remote level knob. No problem here

By c on March 21, 2014

39

found this helpful.

Pretty awesome amp

This amp runs my kicker 5.25's and mtx 6.5 component set on two channels and fosgate 6x9s on the other two. The sound is incredibly crisp and loud. The amp does a great job especially for the price. The only thing I somewhat dislike is the large size, but if you have room you cannot go wrong with this amp.

By Ron on January 27, 2014

42

found this helpful.

brx 640.4

I have two of these amps on mids and highs...one word..awesome!!!

By Carl on September 18, 2013

35

found this helpful.

love it!

Sweet amp. I never owned a hifonics amp before but I can say I will own more. It will do its power...

By Raymond on March 27, 2014

36

found this helpful.

Eh tu Brute'

This amp is a monster, powers my RE XXX6.5C speakers with ease!, and runs relatively cool! The lights look pretty cool too! Buy this amp you will not be disappointed.

By Adam on March 14, 2014

34

found this helpful.

Great amp

Great amp but does get a little hot. Lights look great but are bright. Clear sound and good power.

By Michael on December 8, 2013

33

found this helpful.

Great power

I have this running my alpine type r components and co ax speakers in my car and they sound amazing. Have great mid bass from the amp and the amp looks awesome at night with the seats down.

By Jesse on October 18, 2014

33

found this helpful.

True power and features

I have this powering four Rockford fosgate 6x8 powers and it is true power. Has a lot of features, easy to use, love the heat sinks and led's. Does get hot after awhile though. Mine had a problem with the RCA inputs and one of the corner were broke off but I guess that happened in shipping but other than that the amp is great.

By Robert on September 30, 2013

31

found this helpful.

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