sell that thing!i had a gnx 3 i tried it through various solid state and valve amps and struggled to get a good sound.after stuffing around for along time i ripped it out of a an effects loop and whacked it straight into the front end of my jcm 2000 and it was ok on the rectified setting but nothing special.after a while i got the shits with it and swapped my marshall and the digitech for a h&k switchblade and i couldnt be happier.my friend has the same setup as you and they do sound really good but i gave him my old korg ax 1000 pedal it gets some really nice clean tones happening but the distortions can be a little fizzy but they are quite usable.the compression and chorus is quite good better than the gnx.im sure u could get the tones ur after out of the korg.