Re: How to Boss ME 70 Guitar multiple effects system

I'd start with the manual (but that's just me):
http://roland.com/support/article/?q=ma ... id=1810695
http://roland.com/support/article/?q=ma ... id=1810695
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joseph1122539 wrote:Each pedal has three knobs above it ... the right most knob, above each pedal's number, is for setting the volume level of the individual pedal below it.
To set the overall volume for the entire board, there is a knob next to the "reverb" knob, that controls the output level.