EMG BTS 2-Band EQ 4 Potentiometers, Control system for active EMG bass pickups, With Active Balance Control with centre grid, which allows lossless crossfading between two pickups, With 2-band equaliser with single-pole filters - for musical instruments, wide-band single-pole filters are often preferred, as they are less selective and sound more ""musical, With the 2-position DIP switch, you can adjust the frequency and the behaviour of the treble control according to your taste@+@+*Included in delivery:*@+@+, Active balance control, 2 EQ pots, Master volume control, Output socket, Battery bus and clip