older polk audo speakers

[tehLeetsauce]

i just got a pair of polk audio speakers from my dad (Polk SDA 1C), i love these speakers, i remember the day he brought them home. they are in great shape, just a little hole in the cloth, and a couple staind spots on the wood. not a huge deal. im going to be ordering a new receiver pretty soon, maybe a yamaha 663 (im on a sort of budget.) would that be a good match? also with these as fronts, what would be good for a center, rears, and sub (if i even need a sub, these speakers a have awsome bass)