Kinter MA170 12V 2 Channel Mini Digital Audio Power Amplifier for Car or Mp3 Without Power Supply

I recently purchased this 2-Channel Mini Digital Audio Power Amplifier, and I couldn’t be more impressed! The compact size is perfect for my setup, and despite its small footprint, it delivers incredible power and clarity. The sound quality is outstanding, with crisp highs and deep bass, making it ideal for both home audio systems and smaller events.Setup was straightforward, and the build quality feels solid and durable. It’s also very efficient with minimal heat output, even after long hours of use. The adjustable volume and tone controls are easy to use, allowing for precise tuning to suit your preferences.For anyone looking for an affordable yet powerful amplifier, this one is a fantastic choice. Highly recommended!

First off, things I dislike: The stupid color-changing LED is annoying if this thing is anywhere you can see it. The speaker terminals are mounted tab-down, making use difficult if you have this mounted to something. The volume knob is too easy to accidentally adjust. The front panel is slightly off-center in relation to the circuit board. There's no heatsink on the amp IC.So why did I give it 5 stars? This thing is the same price as a burrito and has way more than enough power to drive my 3" desktop "monitors". I bought this to replace the innards of my Behringer MS-20 2x10W "near field monitors." I didn't like that the electronics of the Behringer system were so hot, heavy and power hungry, and I don't need any of the digital inputs. So I ripped all that out and plopped this bad boy on top. Sounds fine.People complain that it doesn't come with a power supply, but honestly that's one of the best features in my opinion. Do you really want the cheapest possible power supply crammed in there with your audio amplifier? Didn't think so. There's a nice beefy cap in there to provide enough power smoothing for anyone but audiophiles who wouldn't buy this thing anyway.In short, this little dude delivers a lot of performance for the price point. My only other complaint is that if I turn the volume knob past 1/3, a mysterious, irregular knocking/banging sound starts at the ceiling and walls of my apartment, and eventually makes its way to my front door. I'm sure I'll figure out what that is eventually.Disclaimer: I'm not an audio enginerd, just a normal dude who wants music at his desk to not sound tinny.

This is a great little amplifier for under $10, and it works very well except for one minor annoyance that's easily fixed.I have a Kindle Fire hooked to some small speakers (through the headphone jack), and I use it to play rain sounds at night when I go to sleep. The problem is that even at full volume the output of the Kindle just isn't loud enough to hear the rain sounds very well.This little amplifier solved that problem- it's got more than enough power to play the sound as loud as I want. It's easy to hook up and works like a charm to boost the sound.THE ANNOYING FEATURESeveral people have mentioned in their reviews that the amp contains a very bright LED behind the volume control, and when the amp is on it cycles through various colors. It's so bright that it would light up part of my room and the changing of the colors was also extremely annoying. If you're experiencing this problem (as others have mentioned in their reviews), there's an easy fix that you can do in about 5 minutes:1) Unplug ALL the wires and connectors from the amp.2) Pull the volume knob off (it just pulls straight off, no tools required).3) Behind the volume knob is a clear plastic piece that's attached to the shaft of the volume control with a small flat nut. With a pair of pliers, gently unscrew and remove the nut.4) Gently pull the clear plastic piece off. Behind it is the LED that is soooo annoying.5) Take the clear plastic piece and spray paint the back side of it with some paint. Almost any color will do as long as it's not transparent. Give it a couple of good coats of paint and let it dry.6) After it's dried, put the plastic piece back in, screw the nut back on, and press the volume control back on the shaft. That's it- problem solved. No more annoying light. :)(Alternatively you could follow the steps to #4 and then paint the LED with some nail polish or dark paint.)I hope this fix helps others. Aside from this one minor annoyance, this is a great amplifier for general use and I wholeheartedly recommend it.