I am looking at the N3 tower, and have read that there is also a N3 TL tower....are they the same thing? would this be a good choice? I currently have a pair of monitor audio 2-ways on stands and they are fine, but i have had bookshelf /speaker stands for he past 30 years and i am tired of them. Would like either larger monitors, or towers. Budget is in the $700 area.