my tweeter is like 40" high right now, which is why i think it's a bit too high. it depends on the height of the couch i guess, tho probably anywhere is a 4"-6" range is ok. If i could do it over again i'd probably drop my stand height from 31" to like 26". probably either the 24" or the 29" would be fine. i don't know if the distance would make a difference--I sit about 8 feet away so i feel like the height issue is more noticable.