EMG BTC-HZ 2-band EQ, essentially the same as the the regular BTC system, but with a B125 Active Balance Control (buffered blend pot) which allows for passive pickups. It also comes with a concentric treble and bass pot, and a volume pot. I had it installed in my Warwick Thumb 5 for a week, and decided that the Bartolini pickups I have pairs better with its own preamp. The 9v harness has been rewired to 18v. Looking for $67.5 USD. PayPal payment only. Shipped USA/CANADA. {} {}