Review on 🔊 DollaTek XH-A901 NE5532 Tone Board Preamp with Adjustable Treble, Bass, and Volume Controls for Amplifier Board by Daniel Delgado

Connects between source and amplifier. It does not work. I noticed that my CC-CV supply current started to increase. Turn off the radio source. Luckily I had the power set to low so nothing was affected. Disconnect power from this preamp board and try again. This time the amp picked up a weak signal, but still too weak to be heard well. Upon further inspection of the board and comparison to Revain's photos. My board came with a VCC bridge rectifier. I'm not sure why it needs to accept DC as I said. Next I noticed the jumpers on the board where the capacitors appear. RETURN ASAP Luckily my other gear is fine, but I think that's just because I was careful to set the low amperage on the first try. The last board I ordered, like this one, burned my original board. I'll try to contact the seller for more information but I don't really think so as everything on the board is in Chinese and I can't understand it.