mikeperez83
New member
I ordered and built 2 Obsidius boards, one works perfectly as intended, the other also works...kinda. In bypass mode its very quiet, engaged, the pots all work as well as the effect and toggles EXCEPT if i move the Grunt switch up or down, especially UP I get this loud whooshing sound even with the volume completely turned down on the bass. i can play over the noise, but its also very apparent. All my solder joints look solid, i used an audio probe and deiced to swap out Both IC 1 and IC 3 which is the CD4049, still getting the same issue. i can't really tell what i'm missing, is there some sort of groundloop i somehow have before the first IC? The signal travels through the whole board getting more and more amplified. (I also changed out the 1N5817)