This pedal is in very good condition for its age with all controls working well. It has been fully tested in store and our techs have gone through and cleaned/conditioned the jacks and pots. One of the feet is warped but still holds the screw in place.
There isn't a tonne of information on this pedal but from our research this seems to have been built in West Germany by Schaller and looks to be a direct copy of their Treble-Bass Boost pedal. The internals also look to be identical to the Schaller branded ones.
For control this pedal has a volume control as well as a 5-way switch with 2 treble modes, 2 bass modes. When this 5-way switch is set in the middle it doesn't boost treble or bass and mostly just darkens the overall tone.
