I've owned a few Thiel models. The newer ones (e.g. 3.7s, 2,7s) don't seem as sensitive to cabling as the older ones (I've owned besides the 3.7s, the 2.3s and the 7.2s). In addition, when my friend worked at the high end shop in the early 2000s, for about a six year period, I did virtually all his set-ups and installs with him (and those where all pre 3.7s by a few years, 1.6s, 2.3s, 2.4s, 1.7s, 6s, 7.2a). The 3.6s do have a reputation for sounding bright as do some of the other earlier models (not owned or heard them personally), I almost went into the cable making difference and have had numerous secondary (non-Thiel) systems currently and in the past. Many times a cable would make a bigger difference on my old 2.3s for example and something I could barely tell if there was a difference on something like my B&W P6s. So from my experience (but nothing as old as the 3.6s - but yes to the 1.6s), some of the older models are the poster children for everything in the chain is important more so than some other brands.