I'm looking for a 2.1 50w / 100w bluetooth amplifier board that will allow me to add potentiometers that control volume, tone, crossover frequency.

I really like this board and it sounds like the potentiometers on this one can be moved but it's a delicate operation. Can you recommend something similar that might be easier to work on?

Also, what exterior potentiometers would you recommend, especially keeping in mind that on this particular board, the volume knob serves several functions. Long push controls power and short push toggles between bluetooth and aux in, and of course turning controls volume (surprise!).