We are an Alpine authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!
The R-A90S features a unique staggered channel design, delivering double the power on the last two channels. Perfect for bass lovers, the 5th and 6th channels can be bridged to unleash up to 500 watts at 4 Ohm, making it an ideal match for dual 10-inch Alpine Halo S-Series Preloaded Subwoofer Enclosures with ProLink™.
Breaking away from the limits of traditional amplifiers, the R-A90S introduces a groundbreaking staggered power channel layout for unmatched adaptability. This innovative design provides different power levels across channels, giving you the flexibility to configure your system exactly how you want it. Acting as both a 3-way active amplifier and a 5-channel powerhouse, the R-A90S ensures optimal power delivery where it’s needed most, making it the perfect solution for evolving audio setups.
Built on Alpine’s legacy of innovation, the R-A90S utilizes exclusive components from the premium X-Series amplifiers. Its dual post-filter feedback loops actively correct signal distortion, ensuring the output stays as true as possible to the original input—delivering exceptionally accurate, high-fidelity sound reproduction every time.
Enhance your control with the optional RUX-KNOB.2 Remote Bass Control Knob (sold separately). This convenient add-on lets you instantly fine-tune your subwoofer’s bass levels by adjusting the amplifier gain, giving you quick, precise control whenever you need extra low-end power.
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This Alpine R series amp is killer, man! So far, it's perfect, just what I'd expect. Super flexible and easy to configure. Offers mad value and versatility, few other six-channel amps can match it. The extra power rocks for midbass drivers, and that bandpass filter feature is dope. Solid build quality and feel. It's a solid amp for a full car upgrade. Total win, no doubt!
Controls can be overwhelming, but once you understand how they work, you’ll immediately love this 6ch amp from Alpine. Great balanced sound with my 6.5 speakers and subs and it can surely go loud if you push the volume to the max.
Had it set up on my Tacoma for five months now and its performing out pretty well. Connected two pairs of speakers and a sub, leaving out the last channel for another sub in the future, and the filters are really very helpful in tuning out the audio components to what I want to hear from them.
it's been two months since I bought this Alpine amp and I can't really get over how great it is. it's my first time buying a $600 amplifier, and you really get with what you pay for it. planning to buy a subwoofer and now I don't think I have to power up the sub. this amp can totally take one.
We are an Alpine authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!
The R-A90S features a unique staggered channel design, delivering double the power on the last two channels. Perfect for bass lovers, the 5th and 6th channels can be bridged to unleash up to 500 watts at 4 Ohm, making it an ideal match for dual 10-inch Alpine Halo S-Series Preloaded Subwoofer Enclosures with ProLink™.
Breaking away from the limits of traditional amplifiers, the R-A90S introduces a groundbreaking staggered power channel layout for unmatched adaptability. This innovative design provides different power levels across channels, giving you the flexibility to configure your system exactly how you want it. Acting as both a 3-way active amplifier and a 5-channel powerhouse, the R-A90S ensures optimal power delivery where it’s needed most, making it the perfect solution for evolving audio setups.
Built on Alpine’s legacy of innovation, the R-A90S utilizes exclusive components from the premium X-Series amplifiers. Its dual post-filter feedback loops actively correct signal distortion, ensuring the output stays as true as possible to the original input—delivering exceptionally accurate, high-fidelity sound reproduction every time.
Enhance your control with the optional RUX-KNOB.2 Remote Bass Control Knob (sold separately). This convenient add-on lets you instantly fine-tune your subwoofer’s bass levels by adjusting the amplifier gain, giving you quick, precise control whenever you need extra low-end power.
