My car was recently broke into and the amp was stolen (thank goodness they left the empeg) and wanted to replace it. I am broke so I can't afford much, but was curious on how much of a difference the different watts. My old one was only 75 watts per channel. However, I don't really have that great of speakers so I figure it doesn' matter if I have much more wattage.So does it make that much of a difference?