well, if the High purity has to much hall information, then maybe check out the Gen2 HSR Ic's ($400 version). I'm told the Gen2 HSR has less hall info, and is less detailed than the High Purity, but the same harmonic and sonic presentation. Esp. if the High Purity is out of your budget, then the Gen2 is where its at. Same organic, musical family sound. I would check these out. Hell, its what I am using (after some serious cable listening/auditions/ownerships of various brands/models).
on a side note (g# maybe?), the cables only pass on whats there on the recording via the sources and components/speakers used. So the system components used in your audition of the cables is what you were REALLY hearing - the Tg Audio just lets it all through. They might not have that kind of illuminated "hall info" in your system (or your friends for that matter) based on your systems component make up. Hell, your room might not sound the same either........