The year is now 2020 and I’m about 7 years off the last thread ! Having same issue with my 2 band Ray. I do know that the treble has WAY to much high end and to NEVER EVER put treble to 10. I point the screw on the treble knob at the screw on the control plate in between the treble and bass knobs. 6 I’d reckon and bass at about 8. The louder the Ray gets the more I back off that nasty treble. Going through a Keeley 4 knob compressor into a Sans Amp.