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

A Very nice basic amplifier. Bass Treble and volume. Takes up very little space and sounds good. Perfect for background music or for Computer. Very easy to set up and all-inclusive construction. I am very happy with the way it performs with my pc and bookshelf JBL Speakers. Oh, I forgot to mention it is at an unbelievable price!!!

I'm using this to replace my desktop speakers with some Klipsch RSX-5 speakers. The speakers are rated for 75 watts so I wasn't entirely sure this would power them sufficiently. It was actually plenty, with good speakers, this can fill a room with a good level of loudness. I was worried about the power draw so I dug up my watt meter and saw it was only using 2.6 watts!!!!!! (now I'm using 1.6 Watts MAX) At this point I was intrigued and I set it up to my two Polk Monitor60 Floorstanders (with 3 6" woofers and a tweeter in each, for a total of 8 speakers, Rated for 150/300 Watts) and it sounded acceptable (drawing like 4 watts), not as good as my $300 receiver, but at 3% the investment and virtually no heat or power use, it is a strong contender. Bass and Treble Boost works but is limited of course. I was going to set this up outside but got distracted and left it sitting on concrete in Florida sun for three hours, it got pretty hot. It still works, but now is makes the speakers make a weird noise when I turn it on (high-pitch low-decibel, not bad, just weird). It wasn't even on, or plugged in... Since it was $10, I don't blame the piece but want to share that experience. Ending statement - Great bargain at $10-12. Though it could power bigger speakers enough to use as a primary system, I wouldn't recommend it, but I will definitely never use a pair of "computer speakers" again, thanks to this. I'll probably buy 2 or 3 more of these for various rooms in my house... I powered my amplifier with a high quality 12v 2a Adapter I got for LED Strip Lighting.

For the price ($12) you cannot go wrong, as long as you have a 12v power supply since it does not come with one. My application: I use it as an amp for speakers that drive off the TV in our lower living room. I have the TV turn on a 5Vdc relay running off the USB port of the TV. This turns on the power to this amplifier that drives some decent bookshelf speakers. Sounds much better than the tv speakers. The amp seems to have a decent amount of power, 'feels like' maybe 5 watts per channel? (I am using an old AT&T 10watt 12Vdc power supply for the amp). The bass adjustment on this amp is more of a Low-mid frequency gain, similar to the old loudness adjustment on old receivers. The treble adjustment is pretty decent. the only downsize for me is there is a minor POP when the TV shuts off because I am basically turning off the power supply instead of the amp button in front. I would buy again if needed.

Replaced an old DROK Micro Stereo Amplifier that I bought in 2017 that set in my garage and used hard and finally gave out. Used this as soon as I received it with in hour after being place on my doorstep. I resumed my old 12v 2 amp plug and a set of 6ohm Techicns book shelf speakers. It preformed without a hitch in our Texas 90 degree heat with no air flow on it for three days straight. It got warm to the touch but nothing to concerning and I was jamming it pretty loud. I do like the fact that I can adjust the bass and highs, and has great sound. I’m a huge SQ guy and this gets my approval. Hopefully I get 8 years out of it. May purchase their 2.1 later down the road but first need to upgrade my outdoor speakers. Really enjoying this amp and worth the 12 bucks.

It'll work for a long period of time and then saddening it won't come on. You press the button and it lights up and then dies thereafter. Took it apart and jumped/crossed the power so it stays on (switch is faulty) and now when I turn on the car the amp comes on too.

Nice little amp. I should admit immediately that I am addicted to these small amplifiers. I have many from various manufacturers from all over the world. These amps have a million uses because of their size. An obvious one would be to hook it to a computer and use some nice bookshelf size speakers for your PC sound as opposed to the junk one usually uses for computer audio. But the uses do not stop there by a long shot. Because it comes with "ears," it is ready to mount anywhere. Under a kitchen cupboard, on the back of a headboard for bedroom TV sound, I even have one inside my bathroom vanity for shower tunes. Most people don't understand "watts," because, frankly, manufacturers lie about wattage. They either list only "output watts," a measurement that has to do with electricity, not audio, or have slick terms like "music watts," "real watts," or "listening watts." These mean nothing. "RMS Watts" is the true, scientific measurement of audio wattage. The real RMS watt numbers listed in the description of this item seem low compared to the lies of dishonest sellers. For example, 50 watts RMS in a house or home, at full volume, is LOUD. Too loud to have a conversation over and loud enough to cause hearing damage for prolonged periods. When you see an ad for an amp that has 100 watts of power per channel and is the size of an asprin boittle- it's not 100wx2ch. Sorry... but it just isn't. Refreshingly, this seller has decided to tell you the truth. This is an 8 watt RMS amp- 4 watts per channel. Guess what? In a normal sized room in a house, that's loud. Turn it all the way up and you'll annoy someone else in your house. I also like that the audio quality measurements are included in the description (Min. THD: <0.005%70dB). The seller has made no bones about what this product is and what it is not. I know prices change, but I got mine for under $10 including shipping and that's still a steal for what you'll receive when you buy this amp. The uses are endless. Since it is powered by a 12V 2A power source, it can be fed by battery pretty easily with minimum know how and some internet research. I can see this unit being part of a portable DIY sound system- easily. For instance, wired correctly, an 8AA battery pack could run this amp, probably for 8-10 hours. So basically, anywhere this amp can fit, it can be used. Like I said, I have many like this one. Some are better, some are useless. A good comparison is the Lepai 2020+. That is a very popular amp a tad bigger than this amp with much more power (20 watts RMS per channel). I like that amp, but if I didn't need REAL LOUD, I'd go with this one at half the price, on average. I have another amp I will not name that is very similar to this one in appearance and description. A deceptive description that claimed 15 watts RMS per channel: a lie. This 4 watt per channel amp walks all over that other deceptive amp. I appreciate the quality, the honesty, the speed of delivery and the "get exactly what is described" way this amp is sold and used. I like it a lot. Sure, there are better. Not for $10. Not this size. Not this rugged. Not this adaptable. Not with so many uses. This thing is top of the heap for its size and price, hands down. One last thing. This amp comes without the power supply. This is really upsetting for a lot of people. It's also standard in the audio world. The power supply is your responsibility. It keeps costs down to NOT ship a heavy power supply (probably weighs as much or more than the item itself) across the ocean. And guess what? The needed supply is probably already in your house somewhere. They do send along the proper END to attach to a power supply. When I say power supply, I mean you'll need a "wall wart," one of those black box plugs that is on just about everything small with some power. They all have numbers on the back that look like Greek to the uninitiated. It's simple for this item. You look for the OUTPUT number and you need one that says "12V 2A." Sometimes it will say "12V 2000mA," which is the same. (mA = MILLIAMPS; 2000 MILLIAMPS is equal to 2 AMPS) Look around your basement or attic for old stuff that plus in. I bet you'll find one. This sort of thing is a deal breaker for many people. Many people do not want "extra work" or "parts missing" with anything they buy. To say that parts are missing isn't really accurate. The seller is doing what most amp module sellers do- leaving the power supply up to the buyer. It's industry practice, not just to save costs, but because a buyer can elect to give the amp more power or less power than recommended. I do not recommend either. 12V 2A is perfect for this unit. That covers everything. Now I think I'll put a few more of these in my cart...

Works well - We use on Pi software and hooks up great

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 FEATURE Several 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.

Muito bom

NICE MINI AMPLIFIER

suena muy potente para su tamaño exelente calidad de armado y sonido y te puede mover asta un stereo completo forzandolo pero si tiene bastante potencia mas de la que yo me imagine y sobre todo que con una bateria de 12V lo haces un sonido portatii

Don't waste your time or money on this junk. The one I received is being returned immediately for refund.

I purchased this for a mod of a Street Fighter II Arcade 1Up cabinet - adding a Raspberry Pi 3B+ - as it requires an amp for sound. It works great, although I was expecting it to have a 3.5mm plug (1/8th Headphone jack input) but it doesn’t. But that’s MY fault for not paying attention even though the Amazon listing had GREAT pix. It has RCA inputs. Luckily (and inexplicably!) I had an RCA to 3.5 mm cable lying around. But just know that going in. It has a decent sound (currently mono as I’m only using the one A1Up speaker) and a nice LED light that I’ll never see. It’s light weight and so far, no complaints! Works great!