I purchased this unit, from Mystic Guitars, on TheVerb, last year. I thought about making one of my Marcus Miller basses passive. Its a little more Mid-Ranged focused, so I missed having the Bass Boost control, so after a week, I went back to the Active set up. They sell for $50 new. CTS sized pots, treble bleed circuit for both volume controls, paper and oil SoZo .47 tone caps, cloth wiring. Red (Hot) and Green (Ground) wires are from a DiMarzio Ultra Jazz Bass set. Your PayPal payment gets the harness shipped to your lower 48th US state via USPS Priority Mail with tracking and insurance.