AlpineKTP-445 4-Channel Amplifier

This works as promised but if you're buying it to install on a factory stereo to upgrade your sound quality it isn't the only thing you'll need. After having my speakers upgraded in my 2018 Colorado with Kicker 6x9 w/ tweeters up front, Kicker 6.5's in the rear & Kicker 11hs8 Hideaway Sub & this amp, the tweeter started popping after volume was only about 1/2 way. Another trip the the audio installer to get it adjusted had me getting an AudioControl LC7i installed as well to smooth things out. Sounds awesome now but wasn't expecting to have to spend another $400 to get there. Oh well, you pay for what you get & great sound is what I wanted.

Très heureux de mon achat, installé sur ma moto Kawasaki 1700 voyageur 2016, bonne emplacement pour l'installé et super le son...j'avais déjà changer mes haut parleurs 45 watts RMS mais ils ne sont pas assez puissants donc prochaine achat de nouveaux haut parleurs éventuellement, pour l'instant ça me convient parfaitement.

It's made a noticeable improvement to the factory stereo in my Mazda CX 5. Where I was cranking the volume all the way up to 50, now I'm getting as much power at 30 with added clarity.It was easy to install, was able to find colour codes for speaker wires online and use a multimeter probe to find the accessory lead and make the connections.Small enough to jam in against the firewall behind the stereo.Can tap into ground and power leads for systems protected by a 15 amp fuse, so no running wires to the battery.

Installed on my 2007 Honda Civic With stock deck.Installed moral Maximo 6 1/2 speakers. Sounds very clean. All from amazon.

Hallo,ich habe diese Endstufe heute erhalten und ich muss sagen es hat sich gelohnt. Endlich werden meine Eton Pows voll ausgereizt und hören sich nochmal deutlich besser an als zuvor. Der Zuwachs an Bass ist enorm und man hat angst lauter zu drehen (positiv gemeint) :)Einfach Super!!!