I own a renewed Krell 700cx, just came back from Krell, the amp is esentially new!, maybe the only one in the u.s.a.!, costed a pretty penny I must say!,Krell also used the newest caps that are better than what was supplied in 2005 for my amp, by theory, this Krell 700cx should sound better than the original 700cx amp,, yes, Zd542 is correct, the post is for bi-wiring, I use Taralabs omega jumpers on my speakers that is alot cheaper than buying another pair of Taralabs omega gold speaker cables to bi-wire to an effect that I am very impressed to say the least., currently, I am awaiting to get another source before I fire up the amp that is still in the sealed Krell box, cheers.