NEED HELP? CALL US: 02 9568 8888

Shopping Cart 0 items · $0.00

    (All items shipped from our Sydney warehouse)


    $9.95 on all orders

    Heavy Items Excluded


    Best Prices & Price Matching


    Money Back Guarantee

Merry Christmas

Merry Christmas Sale

Click on above image to view full picture

  • HiFonics Brutus BRX640 4 Channel Amplifier
  • HiFonics Brutus BRX640 4 Channel Amplifier
  • HiFonics Brutus BRX640 4 Channel Amplifier

HiFonics Brutus 640w 4 CH Amplifier (BRX640.4)

Product Code : BRX6404

List Price: $329.00 On Sale: $158.85 (GST Included) (You save 51.72%)

$9.95 Flat Rate Generally ships out in 24 to 48 hours.

In Stock


How To Build A Bundle

The following accessories can be bundled with your purchase by checking the green ‘Include with Product’ button. You can add as many items to your order as you require and then simply ‘Add to Cart’ to complete order.

Product Info

Product Info

HiFonics Brutus BRX640 4 Channel Amplifier

We Think You Should Know

  • 12 Month Australian Warranty
  • Risk Free Purchase Guarantee (bottom of page)
  • Super A/B Class Amplifier
  • 4 Channel Amplifier
  • 4 x 160 watts @ 2 ohms
  • 4 x 80 watts @ 4 ohms
  • 2 x 320 watts @ 4 ohms (Mono Bridge)
  • Variable crossover Built-in
  • Bass Equalization
  • Diagnostic mode

The BRX series has a illuminated Hifonics logo with blue light from the underside of the heatsink to give a glow appearance on the distance. Featuring The Molded and angled illuminated terminals is designed for stress free installation access. Accu-Cross crossover allows for adjustment and sound shaping and The Ultra-FI MOSFET maximise its sounds to enhance the sounds quality and power.

The BRX640.4 is a 4 channel amplifier with 80 watts RMS power with variable input sensitivity for rated output power of 0.2V to 6V. This amplifier is set for 2 controls, channel 1 & 2 and channel 3 & 4 with selectable mode operation. This amplifier is designed with built in crossover, the high pass filter acts as subsonic filter and when LPF/BPF mode is selected the Bass EQ is also switch on.


Peace of Mind Purchase Guarantee & Declaration of Warranty
This product is directly imported and is offered with a full Australian 12 month warranty. (You may also be entitled to other consumer warranties as provided by the Australian Consumer Guarantee and these entitlements are not limited by this warranty). In the event that this product should fail please contact our service department to arrange service for this product.

We are not linked or associated with Hifonics Car Audio.

Our decision to import this product is in line with our company objectives to 'Offer our Customers the very best prices on the world's biggest brands and make sure our service is second to none'.

This product will be shipped from our Sydney Warehouse and you are welcome to pick it up directly from our store in Sydney. This product is NOT DROP SHIPPED from overseas.

Tech Specs

Technical Specifications

Amplifier Type

  • 4 Channel amplifier

Power Output

  • 4 x 160 watts @ 2 ohms
  • 4 x 80 watts @ 4 ohms
  • 2 x 320 watts @ 4 ohms (Mono Bridge)


  • Built-in Crossover: Low Pass/ High Pass
  • HI PASS: 10Hz to 1.3kHz.
  • LOW PASS: 30Hz to 150Hz.
  • BASS EQ: 45Hz bass boost variable from 0dB to 10dB.
  • LEVEL: Variable LEVEL (GAIN) control from 6.0V to 0.2V

Dimension (H x L x D): 15.92" x 10.31" x 2.52"

In The Box

What's Included?

  • HiFonics Brutus BRX640 4 Channel Amplifier

No Reviews Available

  •   1 star 2 stars 3 stars 4 stars 5 stars

* Required Fields