For speaker wires I use 2 runs for each speaker of 24 awg CAT5 solid core (twisted insulated 8 tips) patch network cables ~ $22 cdn for 100 feet (the ones used for long runs between hub rooms and/or backbone switches and are Solid Core not stranded) And they sound no different than my old Kimber 4TC which were 20 feet and cost $225. Kimbers are also solid core and twisted 8 pairs.

the white cables are solid core CAT5