I tried an experiment at a recent band practice where I cranked all of the eq knobs on my amp (it's a blues jr., so that's bass, mids and treb). The others noticed the sound was different and an improvement. I've never been much of a knob-dialer and most of the time I have played with everything turned up between 10 and 2 o'clock. What I was curious about is whether diming an amp eq somehow lets the full guitar signal pass through the amp. Aside from dialing in a specific sound, how does a typical eq section affect the guitar signal? Is it like the tone knob on the guitar, where anything less than wide open is a cut? I'm also wondering if anyone else does this with their eq as standard practice.