Alpine S-A32F, S Series Class D 4 Channel Digital Amplifier, 320 Watts

Alpine has always been my all-time favorite audio equipment! I added this amp to my 10.1 inch android auto head unit in standard cab, 1st gen tacoma. Mounted 6.5 infinity reference separates with baffle, into stock door holes. I have custom sub box with a mid grade 10" rockford fosgate behind driver seat and console. ABSOLUTELY AMAZING !! The sound is crystal clear and bass hit nice and sharp at all volume levels. I never moved gain controls from the half way position was shipped with, and. I have awesome sound!! Alpine always underrated!!! Yes, buy it!! Atleast when speaker are matched closely. Head unit is 47x4 watts I believe and produces great power with this amp added!!

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 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.

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

it's good as good as it can get Excellent product Going to buy another

Unlike amplifiers rated at 10x the wattage, these put out more than they're advertised to offer AND do it without distorting the sound. I'm a HUGE audiophile. EVERYTHING I OWN has a good stereo in it. Hell, I have 3 HUGE stereos in my house! 1 upstairs, 1 downstairs and 1 on the screened in rear deck/sunroom. My vehicles are no different! I HAVE TO GUARANTEE that when someone pulls alongside of me "thumping" (C)rap, that I don't have to listen to their shit sounding stereo and in at least 2 of my vehicles, can force them to hear whatever I have on! Plus, I am often on the road between Tn & Pa and a LOUD, clean sounding stereo is a MUST! I literally never turn the things down, only UP! I LOVE my music, but it has to sound GREAT! I DETEST added distortion. This amp is in a small vehicle/beater so it need not be HUGE. It powers 4 Infinity KAPPA 6.5" speakers, both component speakers and you'd be amazed that all of that sound is coming out of such small speakers. I have a pair of small, under the front seat powered subs to round out the sound, and except for the lack of "air moving" large speakers, the sound quality is impressive! Alpine has been offering higher end car audio since before I began driving in '87, and I'm happy to see they STILL do! Buy this. You won't regret it! Kirk

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.

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

At 4x55W (RMS) this Amp provides just a little more umph than the very common 50W competition in this price range. Construction is solid. No distortion at a volume that is too loud for the average listener. The manual states that this Amp is rated for 80W per channel at 2 ohms (RMS). I was quite impressed that the manual included the factory technician's hand written value of the actual performance for my specific unit. (92W) Paired with my new 12" powered subwoofer I find myself looking for excuses to run a few errands. Only criticism is that it did not have any pre-outs.

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