DollaTek ZK-502M Audio Mini 2.0 Stereo 50W+50W Bluetooth Digital Amplifier Module 50W2 AMP Amplificador Home Theater AUX USB

Very easy to put together, and feels more robust as a pair of printed circuit boards connected with brass standoffs than an equally-cheap plastic housing would. The negative reviews seem to suggest it can burn itself out, but adding active cooling is extremely easy - it keeps its USB port powered when it's in the other modes, and there's enough current coming from it that its 5V output is keeping a 120mm PC fan meant to run on 12V spinning quickly enough to move air, but slowly enough to be silent. If you don't want to run a bodge, one of those pound-shop gooseneck USB fans for laptops would probably be just as good, and 50mm fans with USB cables are cheap too as people use them to cool 3D printer hot ends. When I was putting it together, I made sure to fit the little heatsink so that the fins are perpendicular to the edge it's closest to - I don't know how much of an actual effect that'll have, but it means the air can move through the fins rather than into the side of one. It seems to be fine with some pretty big speakers - I had a pair of Alesis M1 Mk. II active monitors die, victims of the capacitor plague, and I converted them to passives: each are now 8-ohm with 5.5-inch 75W woofers and 25W tweeters, and this thing, powered by a 20V 3.95A laptop PSU rescued from the dump, is able to run the pair of them fine. More than loud enough for a medium-sized room with no missing low-end. The photos make it look like it'll be too small for this to be possible...and it's even smaller in person. Brow-furrowing. If I haven't updated the review, assume it's still alive!

Un buen aparato, no lo puedo negar, se escucha bien, aunke da algún problema de vez en cuando con el bluetooth, xo si usas Jack o usa va de lujo

Fonctionne bien, remplace un ampli pour un PC.

Was not expecting that high quality and volume for that size and price. Playing it with bookshelve speakers and a 12v 2amp power cord I had lying around. If you are looking for a small and cheap amp, here you go!!!

Hifi Qualität darf man nicht erwarten, aber der Verstärker funktioniert super .