Alpine S-A32F S-Series Class D 4-Channel Amplifier

I couldn’t be happier with the Alpine S-A32F S-Series Amplifier. I’ve been upgrading my car audio system piece by piece, and this amp was the perfect addition. The sound is incredibly clean, powerful, and well-balanced across all channels. It brought my speakers to life in a way I honestly didn’t expect—zero distortion, even at high volumes.Installation was straightforward, and the compact design made it easy to fit in a tight space. I also love that it's a Class D amp, so it runs cooler and more efficiently than my old setup.This amp is perfect if you want serious sound quality without breaking the bank. Alpine really nailed it with this one—it delivers professional-level audio performance at a great price.Highly recommend it for anyone looking to elevate their car audio game!

I recommend this amplifier, it is very compact and the functions it brings are very good. It doesn't make any noise from the car's engine, the sound is very clear and powerful

Compact, runs cool, very clean output. Can't say there was any noticeable sound quality differences from the Kenwood Class D I replaced, but this amp runs much much cooler, which was my main reason for replacement, my old amp would run dangerously hot for the carpeted space that I had it installed.. HPF works great, easy setup, terminals and controls clearly marked.

I needed to replace an amplifier that died and I didn't want to skimp on quality; so when I saw this amplifier at a great price I didn't hesitate.First I am really happy with the build quality and aesthetics, my only disappointment is the wire terminals are just small set screws without a wire clamping system. I recommend terminating your wires with pin connectors. For the power and ground wires(8 gauge), I had to improvise pin connectors from larger gauge ring terminals. This improves and makes connections secure.I have been impressed by the sound. Punchy, deep bass, smooth mids and highs. Some of the improvement may be because the old amplifier was mounted under the rear deck on metal, which probably created a ground loop, and heat dissapation issues. I mounted this amp to the trunk liner with some plastic spacers underneath for airflow and wood backing behind the liner for reinforcement.This amp was about $90 less than the newest Alpine model, so this was an easy decision and I am cruising with great tunes again.

Great amp to push four 6 x 9

Good quality!

I needed to replace an old amp that developed a crackle to run Polk 6.5/tweeter separates and single 10 4ohm sub. This isn't as loud as my old amp but it sounds clean and the price was right. I'd buy it again.

Honestly, it has more power than I expected. Great amp for the price. My ‘71 VW Bus rocks once again!