It's like another language. Still learning it but getting better at dialing in different tones. The toggles make massive differences and change the curves as does the position of each knob. I have to take notes of positions to be able to reference back.Hey Nuage, how's the preamp on their tube amps? I almost bought the 200w, it's just having a fully passive eq is an iffy thing to me. Flat being dimed, cut only knobs, and being at the mercy of the amp doesn't quite sit well with my gut if I can't play it first. Know what I mean?