Eton GA4 4-channel SQ Class-D Amplifier
Eton GA4 4-channel SQ Class-D Amplifier is backordered and will ship as soon as it is back in stock.
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Shipping and Returns
Shipping and Returns
Refund & Returns Policy
GL Pro Sound prides itself on supplying high quality goods and the highest levels of customer service. We are happy to serve you at the highest level, especially in the case of an issue with the goods you have purchased. Please email us at info@glprosound.com.au within the warranty period so that we can address any problems, faults or issues.
In accordance with ACCC guidelines, we will endeavour to fix any problem, fault or issue with a good or service provided by us, within a reasonable timeframe, provided you retain your proof of purchase, have not abused or tampered with the product or service in question, or have not simply changed your mind or found it cheaper elsewhere. Also, you are not covered in the case that the issue, problem or defect was explained to you upon sale or delivery of the goods/services.
In the event that the product is not repairable, we will replace the product.
In the event that the product cannot be replaced, or an acceptable replacement cannot be agreed upon, you are entitled to a refund, or an applicable store credit if you would prefer.
All postage and insurance costs are to be paid by the buyer. We recommend that you return the product via Registered post and that you prepay all postage.
You assume any risk of lost, theft or damaged goods during transit; therefore we advise you take out shipment registration of insurance with your postal carrier. GL Pro Sound will not be responsible for parcels lost or damaged in transit if you choose not to insure.
The ACCC regulations and guidelines on the above, as well as a link to the Australian Consumer Law Consumer Guarantees can be found here:
https://www.accc.gov.au/consumers/consumer-rights-guarantees
If you have any enquiries regarding this document and/or the payment services offered by us through Shopify Payments, please email us at info@glprosound.com.au.
Shipping Policy
Gl Pro Sound will ship in stock goods within 48hrs some goods may be subject to be shipped within 14 days of receiving the order. All orders are shipped via Sendle. If goods cannot be processed a full refund will be offered. Shipping rates are $15 Aud flat rate 20kg and under. Over 20kgs will be calculated at checkout. If you have any queries please email info@glprosound.com.au.
Contact Us
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The Eton GA4 delivers compact yet powerful amplification with 220 watts per channel at 4Ω and exceptional 310 watts per channel at 2Ω.
In bridged mode, experience 640 watts of pure driving force. Built on Class-D efficiency, this 4-channel amplifier maintains studio-grade clarity with a 102dB signal-to-noise ratio and vanishingly low distortion of just 0.003% THD+N. Variable high-pass and low-pass filters provide precise sound shaping, while the subsonic filter protects your speakers.
Measuring just 270mm × 160mm × 51mm, the GA4 fits tight installations without compromise. Perfect for serious car audio builds demanding professional performance in a slim package.

Why Choose GL Pro Sound
Experience, Expertise & Complete Audio Solutions You Can Trust
With decades of industry experience, GL Pro Sound delivers premium audio solutions backed by expert advice, professional installation, and a passion for performance—enhancing everything from your daily drive to full-scale custom setups.


