I never knew Omnifex made amplifiers! (I've only seen their pedals and other accessories.) It should be easy to tell where the problem is, though. Did you replace the battery in the preamp? Are you sure the preamp works at all? Test it, with just a cord plugged into your amp, and set the volume low enough to hear a faint buzz when you touch the jack tip. Now plug the preamp into the amp, and do the same thing...touching the tip of a cord plugged into the preamp. (The buzz should be very loud.) Piezo pickups normally need a preamp, as the voltage produced by them is very small. Is this a preamp designed for a piezo pickup? An impedance mismatch could indeed cause a problem.[This message was edited by Donny Hinson on 10 May 2003 at 06:50 PM.]
