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

Focal R-4280 4 Channel Amplifier

Click on above image to view full picture

  • Focal R-4280 4 Channel Amplifier
  • Focal R-4280 4 Channel Amplifier
  • Focal R-4280 4 Channel Amplifier

List Price: $329.00 On Sale: $188.85 (GST Included) (You save 42.60%)

SKU: R4280


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


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

Check out the Focal R-4280 4 Channel Amplifier's Key Features
(Focal R4280)

  • 12 Month Australian Warranty
  • Risk Free Purchase Guarantee (bottom of page)
  • Class A/B amplification
  • 4/3/2 Channel amplifier
  • 4 x 70 watts RMS at 4 ohms
  • 4 x 90 watts RMS at 2 ohms
  • 2 x 170 watts RMS at 4 ohms (bridged)
  • Stable under 2 ohms
  • RCA Input
  • Good power quality/ratio
  • Bridgeable


The Focal R4280 4 channel amplifier is a class A/B amplifier with aluminum chassis to dissipate high heat. These has a power of 4 x 70 watts under 4 ohms impedance power and 4 x 90 watts RMS under 2 ohms impedance. Featuring the crossover setting with low-pass and high pass crossovers with RCA inputs.

The R 4280 4 channel amplifier operate in 4, 3, 2 channel mode configuring high pass and low pass crossover.

Focal - Car Audio

Established in 1979, Focal have continuously poured technological perfection into the manufacturing and development of high fidelity loudspeakers and drivers. With the majority still hand made in France, Focal continue to maintain some of the best quality control and technology leading designs within the car audio industry. They have such a broad range from their affordable Universal series all the way to their K2 Power series, Focal is bound to have exactly what you need. Their endless input and hand crafted designs maintains top quality control and the sound produced through their entire range is second to none.

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 Focal.

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.

Due to differing operating costs associated with selling products via different marketplaces such as eBay, Amazon or our Online Store, our pricing may vary as a result.

Tech Specs

Technical Specifications

CEA Power (4Ω): 4x70W RMS
Maximum power (2Ω): 4x90W RMS
Maximum Power (bridged 4Ω): 2x170W RMS
Bandwidth (-3dB): 10Hz – 30kHz (3dB)
THD: 0,06%
Channel Separation (1KHz): 54dB
SNR (1W/A): 83dBA

Low level input sensitivity: 0.2V - 5V
High-pass crossover (channel 1-2): 60Hz–1.2Khz
High-pass crossover (channel 3-4): 100Hz- 2.2Khz
Low-pass crossover: 50-250Hz
Full range Mode:
Protections:Short-circuit / Low impedance / Polarity reversal / Over voltage / Low tension / Thermal overload
Weight Lbs / g: 6.61 / 3 000
Dimensions (Lxlxh):139/16x21/2x97/16"
Inches / mm: (345x64x240mm)

In The Box

What's Included?

  • 1 x Focal R-4280 4 Channel Amplifier

No Reviews Available

  •   1 star 2 stars 3 stars 4 stars 5 stars

* Required Fields