This is a mini tone controller circuit board. This is an optimized version of the passive preamplifier tone board. It has no potentiometer for bass and treble control. So, we recommend not to use this board if you don't have proper knowledge about this board. This board provides excellent tuned bass and treble. The sound quality is very pleasant. The best feature of this board is that you don't need any transformer for this board. You can easily achieve high and low tone adjustments without any transformer power supply.
High bass booster
High and rich quality sound
Don't have to use any transformer
You can easily achieve high and low tone adjustments