DiGiYes Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 50W x 2+100W DC 12V-24V Audio Power Amplifier Module for DIY Bluetooth Audio and Store Home Theater with Treble and Bass Control

So far so good

Did not work properly i dont like it the item was damaged

Before continuing, ignore the way it's put together in the photos for the listing, it's been assembled upside down (see the DC power going into the port labelled Aux-In, for example).The provided instructions are a poorly photocopied single sheet of A4, that don't provide any details about Bluetooth pairing and the likes, but that's fine - I only want to use a wired connection because I don't want any latency (it's for synthesisers). Fortunately it's not a hard thing to build - if you've got any sense at all you'll manage. It even comes with a terrible screwdriver to help you along the way!The entire case, which is just a top and bottom with the panel for the knobs already in place, is made from PCB material (the same as the PCB - crazy, I know!). Given the sides and back are open to the elements I guess its main purpose is to prevent fingers getting close to the heatsink. It's all quite 1980s futuristic, being black with silver for the labels! The provided knobs are also silver in colour, and just a bit too shiny for me so I'll swap them out later. All the hardware is provided, but there are no spare screws or anything which means that, if you drop one of the tiny screws, you might be in trouble. I dropped one... but I'd hoovered the workshop floor a minute beforehand so I found it very quickly.That's all my complaints done. It's actually a very capable little amplifier and can bring life back to speakers that you've had sat on the side for ages because they're too good to get rid of. For me it's using the speakers from an extremely old iPod dock - it hasn't been used since 30-pin connectors were abandoned - and it does a fine job of it. The subwoofer didn't make it but the main speakers sound good.I've not tried the Bluetooth, as explained, and I've only run it on a 12V supply because that's what I had to hand. It's a standard 5.5x2.1mm barrel jack, centre positive, and you've almost definitely got something that will power it in the house already.With better instructions, knobs and enough screws to be able to drop one without panic, it would be a five star review. As it stands, it's a good part to modify lightly for projects.