The BQC Control features a bass and treble equalizer on a concentric (stacked) pot along with the concentric (stacked) mid-control. It takes up very little space and will work with any pickup, active or passive. It comes complete with knobs including 2 extra volume knobs.

MPN EMG-BQCC 4 4

Item Number
EMG-BQCC

Package Includes: 2 concentric knobs sets, 2 extra knobs, output jack, and battery clip set.