some simple questions about cables.

Speaker cables are NOT interconnects. Speaker cables go from the amp to the speaker.

Interconnects go from the CD, Minidisc, etc to the preamp or to an integrated amp. Interconnects are used to connect an amp to a preamp.

Speaker cables and interconnects are 2 different cables.

I would like to add that there is a synergy between manufactures cables. No disrespect but I have found that mixing brands can effect the sound / resolution of a system. I started with Kimber cables which were great (copper). I introduced Siltech interconnects which was silver /gold. My system suffered and I couldn't figure out why, I had spent good money for what I thought wowuld be a upgrade. Spoke to the local dealer and he impressed upon me the fact that I was using different metals which created a smearing effect. When I replaced all the Kimber with Siltech I regained the clearity and warmth that I was accustomed to. So be careful whether it is interconnects or speaker cables which are different don't mix metallurgy. I try to stay with the same manufacture for all my cables, including digital which is a different kind of interconnect but not mention by any of the responders. Happy listening

oops, my bad!

Oregon, You definitely got it right. Succinct without a lot of flowery nonsense. Were you Italian in a past life?

First of all: thanks to those who answer.
I've got the point as for the difference between "interconnects" and "speaker" cables.
I 've some other questions:
a) is the so called "unbalanced" connection the most common and used one?
b) unbalanced connection means through XLR plugs?
c) what does "single ended" mean?
d) if i go in the "shop" for used interconnects cables, what specifications of the seller should i check to make sure they fit my system (Audio Research CLassic30+LS2,Rogers LS3/5??
Thank you