The BTC System by EMG is a pre-wired kit that contains a balance control (blend), a volume control, and then a combined bass and treble control (concentric knobs - stacked). If you’d prefer non-stacked treble and bass controls, check out the BTS system.
It should be noted though, that the Balance control is an active control which is designed specifically for EMG pickups.
The BTC is a Bass EQ System featuring a dual-dip switch allowing for four different configurations to customize your tone the way you want.
By using the latest technology, these control pots are able to be extremely quite (signal noise wise), and take only a little bit of current from your 9V battery.
The kit includes the 3 controls, the corresponding knobs, as well as the solderless wiring kit (battery wires and output jack, 9V battery not included)