Surrounds have been redone.
Reason I ask about the crossovers is these Advents seem kind of bright compared to my NLA's in the late seventies. I didn't know if that was a characteristic of bad caps or not. Could be the live room, (basement rec room with hard tile floors and little soft furniture) poorly mixed cd's or my aged hearing. I do have some cd's that sound very good with this system so the caps might be fine I might leave them. Thanks for the help. I did take a pic of the crossover for posterity.
P1000527 by