Review on WHDTS Stereo Bluetooth Power Amplifier Board with Infrared Remote Control – 5V/12V/24V, 20W/30W/40W – Complete with Case by Sean Santhanam

This is surprisingly good for the price. Bought to upgrade old speakers and it did the job perfectly. Its performance is entirely dependent on the power source you can provide it with. I found some old used power supplies to connect. Pros: 1) Incredible Bluetooth range, like at least 40 feet through multiple walls 2) Can drive larger speakers (I've tested a lot and they work much better from 6 inches) or larger speakers because the effective sensitivity is higher than smaller speakers ). I use it to run a 10" subwoofer. 3) Doesn't get very hot, even at high volumes. 4) Incredibly good sound quality. Cons: 1) Bluetooth's sensitivity is so strong that if you're using multiple phones on it, you'll find the other Having to make phone forget the device every time because that thing is almost a hassle to just reconnect 2) The 6-point dummy wire connector is so tiny you have to be surgically careful not to short adjacent wires 3) That's it As far as I can tell, it can't be connected to mono to make it easier to use a single speaker without losing the sound quality of the channel 4) The equalizer, while versatile, can really only be used at one or two of the six settings 5) The ringer is VERY loud on power on and Bluetooth connection, remember to turn down the volume on the amp before turning it off All s all in all this is an amazing article.