I have to admit, I was a little skeptical about this amplifier, then I set it up. I am currently using this as a custom solution for a desktop sound system. I am using a Sony 3.1 desktop bookshelf speaker system with a Sony 10 inch woofer and it sounds amazing.To get the center channel, I bridged left and right speaker outputs (one positive, one negative) to the center channel speaker. This amp is very stable at 4 ohm loads, so bridging two 8ohm speakers with a third in the middle leaves a 4ohm load on the front channel which does not even cause heating or clipping even at the ridiculous volumes I enjoy.Also, having the dedicated passive subwoofer output is awesome, it even has its' own volume control so you can finitely dial-in the right amount of bass for your setup.For the price, you cannot go wrong with this amp. It may look small, but it really delivers in desktop or bookshelf applications.I have used this to drive two Paradigm 9se 4ohm tower speakers as well, and again, this little amp drives those huge tower speakers with no struggle.Bluetooth works well, and the line-in features are either RCA inputs or the standard headphone-type input, which is awesome if you are running linbe-out from your PC or laptop.I highly recommend!

Powerful to run two Bose rotating cube speakers with more than enough audio volume. Love the many ports, Bluetooth, USB, RCA, even another set of speaker ports to run a subwoofer. The only subwoofer that I could find to be small enough for this computer (or TV) setup is for a car stereo system and I need to make a box to install it into. Have not done that yet but the options, power, sound quality and very reasonable price point (far less than a NY strip steak at a steak restaurant) make this amp a no brainer. Forget those cheap computer speakers and instead buy better quality small sized passive speakers to use with this mini amp.Also - it is so cute it makes you want to buy several just to look at.Makes a fabulous gift for a teen or young adult away at college.Easy to install, bought an RCA to 3.5 headphone cable to attach to TV or laptop.

I'm not usually one to leave reviews, but this little amp has impressed me so much that I felt it deserved it. Last year we added a new back patio on to our home, and one of the upgrades we included was an outdoor audio system. While shopping for components, I couldn't justify the costs of some of the ready to go wireless/bluetooth audio systems I was seeing, so I decided to piece my own system together. After lots of research and google-fu, I decided to go with this Kinter amp for a few reasons: compact form factor, Bluetooth and wired input ability, and sufficient power output for my needs, and cheap enough that I wouldn't be upset if it didn't survive outside. I paired this up with a set of Polk Audio 8" outdoor ceiling speakers, and all in I'm only about $350 into my outdoor audio setup. All I can say is this combo has blown me away. Using my phone as the BT audio source and volume set to 50% on my phone and 50% on the amp, it's more than loud enough for us and crystal clear audio. If I turn my phone up to 100%, it's unbearably loud on the patio, and my neighbor that's more than 100yds behind us can hear it easily. I'd honestly be scared to know how badly it would blow my speakers out if I tried to go a full 100% on both ends. This thing has been going strong living it's entire life outside for the last 8 months, and has given me zero issues so far. I plan on picking up another one of these soon for the audio system I'm going to be installing in my workshop too.

Muy buena calidad de sonido, trabaja excelente tanto en línea como por BT, y el precio es lo mejor de todo.

Excelente calidad, y muy buen precio, con unas bocinas de calidad suena perfecto, la potencia es adecuada para una habitación pequeña-mediana (24 m^2) que es donde lo tengo instalado. La función Bluetooth también está muy bien se sincroniza de forma inmediata tengo conectado el amplificador a un iPhone X, Xiaomi redmi 9, Samsung 10s y a 3 laptops en todos ellos no ha variado su función.

Esta muy bien construida, suena bien y tiene mucha potencia, PERO en Bluetooth tiene MEDIO SEGUNDO DE DEMORA (delay) lo cual es muy molesto para ver peliculas. Lo había comprado para usar con mi proyector pero no sincroniza con la imagen. Si lo quieres para música y ya es excelente.

Muy buen producto, fácil de instalar y funciona perfectamente, lo conecté a un par de bocinas aiwa que eran de un equipo de sonido modular de los años 90. El sonido es muy bueno y el bluetooth funciona muy bien.

Lo uso con Bluetooth conectado a un Cel Realme a 4m de distancia y funciona bien, no hay interrupción de la señal, el sonido es claro con la potencia suficiente para ambientar una recámara de 3x4m; le conecte unos baflesitos con woofer de 4'' y un subwoofer de 8'', ambos son accionados apropiadamente.No lo he conectado por línea de entrada porque resultó que mi pantalla no tiene salida de audio analógica, por lo que estoy esperando que me llegue el convertidor para probarlo viendo películas de plataformas.

It seems like I looked at every mini 2.1 amplifier here at Amazon, but none of them brought as much to the table for such a reasonable price as this Kinter K3118-2.1. The amps in the $25 - $35 price range are either just circuit boards or sandwich type cases (both of which look like high school science projects to me), and the price for the amps in full aluminum cases jumps to $70 - $80 – with most of those still requiring the purchase of a power supply. At $40, the Kinter K3118-2.1 is the happy medium with a full aluminum enclosure, a 19V 5-amp power supply, and dual Texas Instruments amplifier chips that provide all the juice I need for my DIY 2.1 system. With its good looks, solid build, and quality features, I feel that this is the hands down best value for a mini amplifier to be found here at Amazon.The Kinter K3118-2.1 is light, yet sturdy feeling, and, in my opinion, is the best looking mini amplifier here at Amazon. Both the power switch and the BT/LINE selector switch are solid and durable feeling and click audibly in a highly satisfying manner when toggled. The separate control knobs for the subwoofer, bass, treble, and master volume have a “just right” feel of tension to them with no sloppiness at all. Basically, the switches and knobs have the same feel to them as the switches and knobs on my far more expensive audio/video equipment inside my house. The Kinter K3118-2.1 really impresses me with a level of quality that belies its low cost. It’s nice to feel like I got more than I paid for once in a while, and I definitely feel that way about this amplifier. Connection can be done via Bluetooth or line, and both work flawlessly. In 2-1/2 months of use, it has never failed to connect to the Bluetooth on either my android phone or iPad, nor has it ever dropped the connections. I don’t think I own any other Bluetooth device that I can say that about, so pretty darn solid in that department. The speaker connectors are of the spring-loaded variety, and they clamp down on my 16-gauge wire tightly and securely. An interesting aspect of the K3118-2.1 that I didn’t see on any other 2.1 amplifiers is that the subwoofer is connected by bridge mode versus having some form of dedicated plug to facilitate the process. This is really neither good nor bad in my book, but it does require a little more work to make some splices to get a subwoofer connected.PRO TIP: I am using low voltage landscape wire instead of actual “speaker wire”. Braided copper wire is braided copper wire, and low voltage landscape wire or lamp wire is much cheaper than “speaker wire”.I built my speaker cabinets out of 1/2-inch MDF and used along with these surprisingly great sounding no-name wired to for my mains, and an for my subwoofer. According to the product description, I lose 10 watts per channel using 8-ohm speakers instead of 4-ohm, but 20 watts per channel is fine enough for me, and I prefer the lower heat generation of 8-ohm since this system is in my garage. The sound quality far exceeds my expectations, and I rarely turn the volume knob past the quarter mark to fill my 20 x 25 garage with crisp highs, solid midrange, and some satisfying low end punch. Movie soundtracks are also quite a surprise with sharp, clear dialogue and deep rumbling bass during explosions. The Kinter K3118-2.1 appears to be a high quality product that provides a lot of bang for the $40, and warrants serious consideration for anyone building their own mini system.

At first I thought this thing was broken, but after re-checking all my cables and making sure they were plugged in, it all worked fine as expected. Its the lowest price 2.1 amp i have found on the internet

Pequeñony bien hecho. No es para mover grandes bocinas, pero cumple bien por el precio. Facil instalacion. Aun no se si se calienta como dicen otros porque no lo he usado mucho

tenia unpar de bocinas y un subwoofer desde hace mas de 10 años. y funciono perfecto con este amplificador, el sonidoes bueno, no hay distorsión. la conexión por Bluetooth es muy buena. no hay perdida o deconexiones de audio.el material es de aluminio. llevo usando casi 1mes de uso, con un rango de 8hrs. continuas diario y no se calienta.

Lo compre para amplificar 2 satelites y un bajo Bose, al que se le daño el cerebro y ya no hay refacciones pero las bocinas estan en excelente estado, me gusto mucho el amplificador, lo pedí 2 veces, el primero que me llego tuvo un problema pero lo regrese y volví a pedir y 100% satisfecho.