100W Bluetooth 5.0 Amplifier Board with Treble and Bass Control, TPA3116D2 50Wx2, Bluetooth AMP Board for Home Passive Speakers

This worked exceptionally well for my DIY Bluetooth speaker. It provides ample power for two speakers, and the Bluetooth connection is seamless. The knobs are smooth and easy to use. The size is great, and the overall quality is excellent. I would definitely buy again.

Easy to assemble and set up. The power output is amazing for such a small device. The Bluetooth signal isn't very strong; I have to place it within sight of the connected device. Also, the treble hums if turned up past 75%.

The popular ZK-502T has probably been sold a million times by now. I have purchased at least 10 so far for all my projects. If you want better, spend more. This is the cheapest Bluetooth amp board there is with T&B controls and a TPA3116 chip. Two thumbs up.

It works pretty well. I had a fair bit of noise coming through the speakers when I turned the volume up very high at all on the this unit which was disappointing, but then I realized the issue almost entirely goes away if you keep the volume on this unit low, and instead crank the volume on the connected device (laptop, phone, etc). This is despite delivering the full 24V power and checking polarity, so if you still have noise after all troubleshooting, try this. I am still able to get a good loud speaker volume with the volume knob turned pretty low with connected device volume turned up most of the way.

I purchased and wasn't happy with product so I'm actually returning it, just sent it back today. Once wired up, the light turns on but doesn't always hook up to speakers. I'd say 1/10 times you turn it on it'll hook up. Don't buy unless you want to be irritated by just tryna get the damn thing to work.

Hard to put together and sound quality sucks it makes my speakers distorted

I though this had broken when I attached it to a full sized speaker and cranked the bass. I in reality, it blew out the woofer of the speaker. Badass little box.Easy to assemble, and comes with a screwdriver, but probably a hair daunting if you're not familiar with the brass standoffs, or the stickered-on heat sink.

I used it in a jukebox, with a 9V power supply, that doesn’t have high-end speakers.It would be nice if the product included a face plate, or marked knobs, to know which knob does what when mounted in a cabinet. It wasn’t a big deal for me, because I used a Dremel to cut down the top plate that comes with the product.