My speakers just came in so it's time to start making their enclosures. But I need some suggestions on how to smooth out the mdf. When I made my sub enclosure, the ends of the panels that show are not level and I want the new speakers I'm making look more professional. I need some type of sander because on my sub enclosure, I spent over 3 hours with a HAND file trying to make the ends even. Not going to happen again! Will an orbital sander be enough for the MDF? Or should I buy a belt sander? Any suggestions? Just trying to make some speakers that I could really be proud showing off. TIA!