LeftyBassist.com

I put one of these in my 78 P-bass and another one in my Hot Rod, amazing difference! Finally a tone pot that isn't just high's roll off. Check it out.

http://www.stellartone.com/Page.asp?NavID=147

That seems really interesting Chuck. Any chance you can do some sound clips of it?

How does it differ in tone from the regular P-Bass tone control?

I got the notched version and there are 16 separate settings ranging from full fat boom to bright zingy edge. It basically is 16 different capacitors with very accurate values over a two octave bandwidth.