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

This pre amplifier controller is a game changer for your home audio system. Its sleek design and user-friendly functions make it easy to adjust the audio according to your preferences. The amplifier is perfect for any home theater setup and really enhances overall sound quality. However, the only drawback is that it may take some time to understand all of the features. Overall, this pre amplifier is a great investment for any tech-savvy audiophile looking to upgrade their home theater system…

Very good sound controller. It has a wide bass and treble range with a well integrated midrange control. It also has a very impressive audio gain boost. Highly recommended with one caveat: the power supply ground must not be shared with the audio ground. There is no audio output with this connection.

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…