Hey guys, picked up a set of SP-2000 s on Cl today. I'm super happy with the way they look, a little dinged up, but I think they're beautiful. I'm happy with how they sound, a little more bass than I'm use to but over all I'm happy. Currently have them hooked up to my Pioneer Sx-636. Other than a few cosmetic changes at some point I wanna open these things up and do a recap at least. Any pointers on what I should replace and what I should upgrade?