I also have Transparent throughout my system but I only have the entry and next level up. I compared Transparent to an equivalently priced Audioquest and preferred the Transparent. The Audioquest was good but I just liked the sound of the Transparent better. Other than that, I haven't done any other A/B comparisons, like Cincy I've just been happy with the Transparent. I really heard a significant improvement when upgrading to their power cords. I didn't like the effect the other Transparent power conditioners had on my system, so for now I'm just plugged into the wall. I've thought about upgrading my wall sockets to PS Audio.

I have not experienced any high frequency roll off at all when using Transparent. In fact, I thought the highs improved. If anything I'd be suspect of filtering the lows because when using Transparent my bass was cleaner and tighter. The networks aren't supposed to effect or alter the signal, it's supposed to help maintain it's original integrity by cancelling out the antenna and RF effects of lengths of wire. MIT was the originator of this technology and some former employees broke away and formed Transparent. I have no idea why they split or if Transparent is better than MIT. It seems that Transparent is getting more of a market share but that could be different in other parts of the States or World. I also have heard that brands of cables sound different, as much as another component, so it may be trial and error to reach the perfect system synergy.