Ok, I'm one of the biggest skeptics when it comes to a lot of tweaks. When I was at RMAF last year and visited the Synergistic Research room, they did a real time demonstration of the effect of the HFTs. The room was treated with them and when they removed just a few of them and played the same track the sound stage collapsed and the definition of the instruments was more diffused. Yes they are expensive for a handful of "audio buttons" but they made a noticeable positive improvement in my system. The best advise I can give you is try them out for yourself if you can get a guaranteed return policy. I would recommend 10 to 15 or they have specials from time to time.
