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Out of stock 209 days · last price £429 · longest previous gap was 208 days

Alpine R-A90S 6-Channel Digital Amplifier - 1200W

Amazon

Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 655 days · 655 data points (no recent data)

Historical
Generating forecast…
£504.33 £421.47 £439.55 £457.63 £475.70 £493.78 £511.86 21 October 2024 02 April 2025 13 September 2025 23 February 2026 06 August 2026
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R-A90S

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Price Distribution

Price distribution over 655 days • 7 price levels

Days at Price
Current Price
579 days · current 11 days 3 days 6 days 36 days 16 days 4 days 0 145 290 434 579 £429 £467 £478 £484 £490 £495 £504 Days at Price

Price Analysis

Most common price: £429 (579 days, 88.4%)

Price range: £429 - £504

Price levels: 7 different prices over 655 days

Description

The Alpine R-A90S is a versatile 6-channel Class-D digital amplifier designed to deliver powerful, high-resolution audio for car audio systems. With a unique variable power channel layout, this amplifier provides 1200W maximum output power, featuring 4 x 100W at 2 ohms or 4 x 75W plus 2 x 250W at 4 ohms to match diverse speaker and subwoofer configurations. The R-A90S incorporates adjustable high pass and low pass filters with band pass filter options, allowing seamless integration into multiple system types. Built to complement Alpine's R Series speakers, this amplifier delivers the same premium sound quality and performance. The flexible 6/5/4/3 channel configuration with bridging capability on channels 5 and 6 means you can tailor the amp to your specific installation requirements, whether powering front and rear speakers, subwoofers, or a combination of both.

Key Features

The R-A90S 6-channel amplifier delivers 1200W maximum output power across multiple impedance configurations at 14.4V with low distortion.

Class-D digital amplifier technology provides efficient, compact power delivery compared to traditional analog amplifiers.

Variable power channel layout offers 4 x 100W at 2 ohms or 4 x 75W plus 2 x 250W at 4 ohms for flexible speaker and subwoofer matching.

Channels 5 and 6 on the R-A90S can be bridged to achieve 500W output for dedicated subwoofer channels when needed.

Integrated adjustable crossovers include low pass filter, high pass filter and band pass filter for precise frequency control.

The R-A90S 6/5/4/3 channel configuration adapts to different car audio system layouts and component counts.

Bass EQ functionality allows fine-tuning of low frequency response to match your vehicle's acoustics and personal preferences.

Product Specifications

Brand
Alpine
Model
R-A90S
Domain
Amazon UK
Release Date
03 January 2021
Listed Since
13 November 2020

Barcode

No barcode data available

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