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Hifonics BRX320.4

320W 4-Channel Brutus Series Class AB Bridgeable Power Amplifier

In Stock. Only 2 Left!
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List price $259.99

$109.95

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Arrives by Thursday, Oct. 30 to zip 07095

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Hifonics BRX320.4

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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: 40 watts x 4 chan.
    • 2 ohms: 80 watts x 4 chan.
    • Bridged, 4 ohms: 160 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
  • 8 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: 13-3/16"L x 10-5/16"W x 2-1/2"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Power Specifications - Full Range Channels

RMS Power @ 4 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

40 watts x 4 channels
RMS Power @ 2 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 2 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

80 watts x 4 channels
Bridged RMS Power

Bridging refers to combining two channels on an amplifier to create one channel with double the voltage and an increased power output. A 2-channel amplifier will bridge down to 1-channel and a 4-channel amplifier can bridge to create 2-channels. An amplifier is most commonly bridged to drive a subwoofer.

Remember, once you bridge two channels down to one its final impedance will be 4 ohms unless otherwise specified. This rating lists the RMS power created once an amplifier is bridged.

160 watts x 2 channels

Amplifier Specifications

Amplifier Series
This designates the series of the amplifier. Many amps are available in a litany of different wattage and channel configurations, but maintain consistent features throughout the product line.
Brutus (Hifonics)
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.

AB
Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
4
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.

320 watts
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
4 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
2 ohms
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
4 ohms
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
No
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
1 pair
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Low-pass (LP)
High-pass (HP)
High-Pass Crossover Frequency
The high-pass crossover frequency can be a fixed crossover point or a variable crossover range. A variable high-pass crossover allows you to select a specific crossover point which allows frequencies above the set crossover point to pass, while making frequencies below the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

10 - 15000 Hz
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

30 - 250 Hz
Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
90 dB
Channel Separation
Also referred to as crosstalk. The amount of interference on one stereo channel caused by the leaking of the other stereo channel. The higher the rating in decibels (dB), the better the Channel Separation.
80 dB
Bass Boost
The objective of the bass boost is to get more kick out of your subwoofer. It is a circuit that emphasizes the lower frequencies at a given point. The bass boost should always be set first before setting the gain. This feature is known for destroying subwoofers and is commonly used incorrectly, so be cautious.
0 - 10 dB
Bass/Gain Remote
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Optional (Accessory required and sold separately)
Fan Cooled
A great feature to have if an amp generates a large amount of heat. Cooling fans can help regulate the temperature to prevent the amp from overheating (burning).
No
Fuse Rating
The amperage and the number of fuse(s) an amp requires.
25A x 2 
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.

Yes
Strappable
Some amplifiers can be "strapped" together in order to increase the output of a single audio channel. These amplifiers feature RCA preamp outputs, allowing you to pass the signal directly from one amp to the other to ensure consistency.
No

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
67%
4 Star
33%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
5.0
Value
5.0
Features
5.0
Design
5.0
Usability
4.8
Derek

Overland Park, KS

Overall
Durability
Value
Features
Design
Usability
Hifonics Amps Are GREAT!

September 24, 2013

Got this to power front door component speakers and 3-way rear deck speakers (both JBL). This amp is fantastic and freaking awesome! It sometimes gets a little warm when I am blasting music, but usually it stays pretty cool. And speaking of cool, the blue lights on it are FREAKING COOL!!! It has all the control I want with an HPF, LPF, and BandPass, the number of different ways to use this amp are infinite! I love this amp, I have had no problems with it and I would be shocked if I ever do.

1 of 1 found this helpful

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Don

Hanover Park, IL

Overall
Durability
Value
Features
Design
Usability
Great beginner amp

August 15, 2014

I say beginner amp because of the price.This thing will make your system jam. It's really loud and sounds good from what I can tell. It's really hard to say how it compares to other amps unless you swap amps in the same car with the same system. If I could hear my same system with a $400 amp to hear the difference that would help determine how this amp compares, but I can't do that. But overall, this is a good amp with a great price. And from my experience, Hifonics makes a quality product. I am running this amp to Infinity 6.5" rear door speakers and Infinity 6.5" components up front. I also have a Brutus 1200.1 for my subs for 2 years and it works flawlessly.

0 of 0 found this helpful

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donmcgowen

Hanover Park, IL

Overall
Durability
Value
Features
Design
Usability
Great Amp

August 13, 2014

I really can't say how this amp compares to every other amp since this is the only amp I have had in my car. But it makes my stereo jam. I have it running to Infinity components up front and 6.5" Infinity speakers in the rear doors. I then have a Hifonics Brutus 1200.1 powering 2x10" Alpine Type R's. All I can say is my stereo system kills. It's so loud I can't turn it up all the way. And for the price, you can't beat this amp.

0 of 0 found this helpful

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Ron

Wabasso, FL

Overall
Durability
Value
Features
Design
Usability
Great Amp!!

April 4, 2014

I bought this amp to run all of my pioneer speakers for the inside of my car and it really does the job. It pushes my speakers just right so that they are all extra loud and its at a great price you cant pass up on this amp.

0 of 0 found this helpful

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Joey

Kenosha WI

Overall
Durability
Value
Features
Design
Usability
Great Amplifier

February 7, 2014

It turns any aftermarket speakers into Crystal clear sounding speakers and you get that extra bump in bass out of them. No doubt anyone who's not looking for something crazy loud for an audio system this amp does the trick. Lastly I got this hooked up to Rockford Fosgate prime 4" & 6 1/2" speakers and wow. The only problem I have is I was looking for 50w rms per channel but oh well. However now they come out with one that offers 50w rms but no doubt the looks of this amp are way better in comparison so the 10 less rms watts I can live without.

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Leandro

Allen, TX

Overall
Durability
Value
Features
Design
Usability
Awesome

December 2, 2013

Hifonics has never let me down. Love their amps! LOOK GREAT and sound just as good. Best part is they cost half as much as competitors. Thanks to sonic Im always recomending them whenever any of my friends are looking for amps

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Accessory Tools and Products

Accessories added

NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

Comes with everything you need to upgrade your power and ground wire.

Your Price $59.99

Kicker Big 3 Package 1/0 Gauge Big 3 Upgrade Kit

Get all you need including wire cutters to upgrade your power and ground wire.

Your Price $151.99

Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

Your Price $39.99

StreetWires FB8

8 Gauge Firewall Bushing

Your Price $6.95

NVX XDBU4 - Top of the Line!

Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs

Your Price $17.99

NVX XIV45 4-Channel RCA Audio Interconnect Cable

5 Meters (16.4 ft.) 4-Channel RCA Audio Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology

Your Price $23.99

Kicker K-Series RCA Interconnect Cable

19 ft. of 4-Channel RCA cable with dual twisted-pair conductors, hyper-flex technology, and gold plated contacts for maximum signal transfer!

Your Price $29.95

StreetWires ZN7 RCA Interconnect Cable

16.4 ft. of 4-Channel RCA Cable with hyper twist construction, oxygen free copper, and precision machined tips.

Your Price $59.99

Kicker 4-Channel RCA Audio Interconnect Cable

4 Meters (13 ft.) 4-Channel K-Series RCA Audio Interconnect Cable

Your Price $19.95

NVX XWS1225 12 AWG Speaker Wire

25 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $39.99

NVX XWS1250 Speaker Wire

50 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $29.99

Belva BBSW167 16 AWG Speaker Wire

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $12.99

The Install Bay IB-CAP1F

True 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $37.99

e2 ECAP1 by Scosche - Mid-Level 1 Farad

Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $49.99

Rockford Fosgate RFC1D - Top of the Line 1 Farad

Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $99.99

Scosche SPL Meter SPL1000F

Handheld boomSTICK measures your SPL range from 60 to 135 dB

Your Price $21.99

Browse 3 questions and 5 answers
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Why did you choose this?
Sonic Electronix Store
Best bang for the buck quality. I have bought over 10k $ worth of Hifonics amps for my friend because the quality to price ratio is outstanding
Tyler A on Aug 8, 2014
This says it has speaker level inputs, but I don't see them in the pictures..... am I missing something?
Jesse on Sep 24, 2014
Best Answer: Hello Jesse,

We apologize for the confusion; the BRX320.4 does NOT have speaker level inputs. It will require an LOC to gain that type of feature.
Reply · Report · Customer SStaff on Sep 24, 2014
· Add Answer · I Have This Question Too (0)
What are the dimensions on this amp?
Richard J on Aug 13, 2014
Best Answer: Its a very good amp. I have 4 6x9 and 4 104 on this amplifier. Its push them like nothing
Reply · Report · Eric J on Aug 13, 2014
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

BRX320.4

UPC

806576220640

Weight

9.00lbs

Internal SKU

brx3204

Internal Product ID

67929

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Hifonics BRX320.4

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