Furman pq3/pq4 Parametric Equalizer.

[kalebk2204]

These units are getting hard to find and were used by many 80s guitarists as well as dimebag. Has a wonderful preamp built in with 3 or 4 bands of parametric eq. An amazing tone shaper either pre or post distortion. If you made a pcb for one I personally know many people in the dimebag Facebook groups would buy one.

 

[kalebk2204]

I built this parametric from byoc but it's not the same as the furman. Not nearly as much gain.