I used this amp to power my portable bluetooth speaker. It did its job well and had more than enough power. This is a class D amplifier with premium sound. Like most Class D amplifiers, this one can produce more power from a smaller size and drive the speakers more efficiently. This makes it an ideal candidate for powering speakers with a 12V Li-Ion battery. The sound is still that of a Class D amplifier, but has a good warmth. I'm deducting one star for two flaws mine has. The rear speaker terminals marked left and right are reversed. This was immediately noticeable as the sounds came from opposite directions. Not a big deal, but worth mentioning. Out of the box, I had a very faint static noise when adjusting the volume. I have very sensitive ears and the sound isn't too annoying. But otherwise the amp was reliable and has the best build quality for the price. You may not be in this price range.
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