I just listened to some sound clips and I really want it now but I still havent got my amp so I was wondering what amp I should get now that I plan on using this. I only want like 30 watts and its got to have a headphone jack. should I get a keyboard amp? Or what I have no idea, will using a different amp make a difference in the sound cause if it doesnt matter then I might just get a marshall mg or something cheap.