I heard heard that you cant use pedals with small pratice amps like the roland microcube, what is the science/reason behind this? Also, would a wah pedal work? I'm planning on getting one.
I don't think it's that they *won't* work, it's just that the tone on those little practice amps is so tinny that it's barely noticable. I'd suggest taking the amp to your local music shop and testing out a few, that'll give you a better answer then anyone here can.