I'm looking at getting a Roland Micro Cube, I loved it after trying one out and I noticed you can plug in a microphone for singing too. I was wondering though, would I be able to play guitar AND sing through the one amp at the same time? I thought the effects might mess with the vocals, but I figure using my effects pedal - A Zoom G1 - would eliminate this problem. Would I be right in thinking that? Thanks in advance!