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  • JBL GX-A604 435Watt 4 Channel Amp
  • JBL GX-A604 435Watt 4 Channel Amp

JBL GX-A604 4 CH Car Amplifier

Product Code : GXA604

List Price: $349.00 On Sale: $218.85 (GST Included) (You save 37.29%)

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



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Product Info

Product Info

Check out the JBL GX-A604 435Watt 4 Channel Amplifier's Key Features
(JBL GXA604)

  • 12 Month Australian Warranty
  • Risk Free Purchase Guarantee (bottom of page)
  • Equipped with both low-level and high-level inputs
  • Electronic crossover
  • Bass Boost circuit


A 435-watt, four-channel, full-range powerhouse, the JBL GX-A604 is certainly a versatile system building tool. It has on-board variable electronic crossovers and variable Bass EQ on the rear channels. With all that power inside a 2-1/16" (52mm) high, 8-1/8" (206mm) wide and 11 13/16" (300mm) deep package, the JBL GX-A604 is easy to install yet can serve as the foundation of a truly sophisticated sound system. Features include a cast-aluminum heat sink, built-in electronic crossover networks and bass boost circuits.


Equipped with both low-level and high-level inputs
The GX-A604 is equipped with both low-level and high-level inputs, allowing connection to virtually any factory or aftermarket head unit. Low-level input is made via standard RCA connectors and high-level inputs made via a supplied Molex connector and harness.

Electronic crossover
The 12dB per octave electronic crossover is fixed at 80Hz and can be selected either high-pass or low-pass. This allows the GX-A602 can be used as a an amplifier to drive full-range speakers or as a subwoofer amplifier.

Bass Boost circuit
The GX-A602 also has an switchable bass boost circuit on the rear channels that adds a fixed at 45Hz and will provide+12dB of gain.

JBL Car Audio

JBL Car Audio products are some of the finest and most innovative products available. With an undeniably rich heritage in audio, JBL have their products in major concert venues and stadiums around the globe and are a go to choice for music professionals. JBL have perfected their car audio products, so you can enjoy the true clarity and energy of music in your vehicle.

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 JBL 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. This product is NOT DROP SHIPPED from overseas.

Tech Specs

Technical Specifications

Audio Specifications

Signal-to-Noise Ratio

Total Peak Power Output

;less than 1%

Frequency Response

Input Sensitivity

Bridged Power Output
170W x 2 into 4 ohms

4-Ohm Power Output
60 Watts RMS x 4 channels

Variable Bass Boost
0 to + 12dB @45Hz

2-Ohm Power Output
85 Watts RMS x 4 channels

In The Box

What's Included?

  • 1 GX-A604 Amplifier
  • 1 Owner's Manual

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