I have a pre-wired on-board preamp that I took out of my Sadowsky Hybrid P-bass. It's in excellent condition and ready to install. It is currently wired for a single pickup, but I'm pretty sure all you need to do is add another 250k pot wired in line.
I'll post pictures asap. Please let me know if you have any questions.
Michael
I'll post pictures asap. Please let me know if you have any questions.
Michael