Review on 🎵 Powerful Bluetooth Subwoofer Audio Amplifier Board with Dual Channel Stereo Amp Module - DIY Speaker Upgrade with Treble and Bass Control (50W+ 50W) by Tim Airy

This Wuzhi amp just works. Bluetooth audio is transmitted with absolute clarity. The audio over the 3.5mm jack is just as good as over a wired analogue connection. I use it in place of a broken amp on a set of Boston Acoustics 2.1 speakers (2 x 50w satellites and a 100w woofer) and it sounds just as good as the original amp 13 years ago. has a low price: - switching the volume to the "off" position does not turn off the device completely; I notice a small spark every time I plug in the power. The lack of a Bluetooth passcode means anyone can easily connect to it, therefore it is not ideal for parties. - In order to switch from Bluetooth to analog mode, the Bluetooth source device must be switched off completely. - Bluetooth on the amplifier cannot be deactivated. Even in analog mode, Bluetooth is always on.