I bought this for a bass I sold recently so I'll let someone else in on it! If you are interested in passive tone options onboard this could do it for you on the cheap. This came out of a single pick up bass, has 4 position settings. Not unlike the Stellartone Tonestyler. Here is a link to a wiring diagram on the Villex site. Normally $96.00 try this one at $45 postage paid. http://www.villex.com/prtb.html