If one had to be longer which would it be?


speaker cable or interconnect to amp?
128x128thegoldenear
IC.Can get a 25' run of decent quality for under a 100 made at most competent shops.Hifi Sound in Mpls. did one for me.I think I still have it.You can have it for cost.About 45$ if I remember.Good luck,Bob
Looking at your system, it seems like your "long" ic will be between your cd player and integrated. I would not ask a cd player to drive a 25' length. A preamp could and that would be my choice (most of the time) over long speaker cables but in your case, I would opt for the longer speaker wire.