SZHFJCTH Audio Amplifier Board with 15W×2+30W 2.1 Channel Subwoofer Amplifier Board, DC12-19V Audio Component amplifiers for Store Solicitation Home Theater Square DIY Speakers

This works great, I added a switch and a potentiometer (1k ohm), it has pretty good sound for what you pay I actually think the switch and potentiometer might have cost more than the amp!!I used the box it came with (it gets a tiny bit hot) while I 3d print a real one... I would absolutely recommend.I used this potentiometer (plug and play): https://www.amazon.com/dp/B082FCFSHX?ref=ppx_yo2ov_dt_b_product_details&th=1

This little board works great to amplify pc sound for Arcade cabinet

It's got the bass!

Compact and powerfull. Super easy to commect

Connected small speakers, 12V power and tried both phone headset and phone aux as input. Nothing. Not a peep. Tried multiple speakers and inputs, and with and without the sub-woofer jumper connected. Nada.

This worked perfectly for my recent project that needed to run a single speaker. Was able to power this right off an arduino and it worked exactly as I needed without any clipping. and the single 4" speaker got very loud. Glad I went with this and saved a few dollars compared to the one that was recommended for the project I was doing. 10/10!

I needed an amplifier to provide background music throughout the secondary rooms of my house (a separate multi room hi-fi sound system was built into the primary rooms). I didn’t want to spend a lot of money on it and sound quality wasn’t as important.I came across this tiny amplifier and thought it might be able to fulfill my current needs. It is basically an amplifier on a chip with the fundamental inputs and outputs required. I was able to fit it into a small circuit box about the size of a pack of playing cards.The power source has to be supplied externally - I used a variable voltage transformer to get the preferred 16 volts. And I used a BlueTooth receiver for my signal input. Then I hooked up the left and right outputs to a pair of speakers (just to test it out before connecting to my wiring that goes to the 5 secondary rooms). And finally I connected my iPhone via Bluetooth to the receiver … and it immediately started playing the music I had selected!The sound volume it put out (rated at 15 watts per channel plus a sub woofer if desired) was more than enough. In fact, to make listening comfortable I had to turn it down to about half via the built in volume control. But even at full volume I didn’t detect any distortion.For under $50 (excluding my pre-installed speakers and wiring) I have a (practically) whole house audio system amplifier that will play anything I send to it via Bluetooth.

This is a fun little project amp that works well.I'm using this to power some desktop speakers. I'm not using the sub out at the moment, but am planning on putting together a small one to go with the current pair of speakers. I use a defunct Dell laptop power supply to run it. These often fail when the cord breaks at the power connector. I whack off the old plug then use one of the plugs with screw terminals to replace it. This amp is rated for 19V which is perfect. At 12 V you only get about half the power that you get at 19V, which is needed to get the rated 15/15/30W. 15 WPC is perfect for my desktop speakers.I'd pay a bit more if it came with the pot or at least a cable for the woofer volume, but its not a big deal to make one up (I solder).