HPF Tech HPF-Pre Series 3

Posted by sparella on
URL: http://guitar-fx-layouts.238.s1.nabble.com/HPF-Tech-HPF-Pre-Series-3-tp50961.html

There is a new version of the HPF-Pre which uses opamps instead of transistors. It looks like a handy little utility box to have around: buffer + phase inverter + 12db HPF @ 35Hz + 12db variable HPF 35-140Hz + volume trim.



Complete info at:
https://sites.google.com/site/hpftechllc/home/technical-diy-stuff/hpf-pre-series-3-technical-info