I have Belkin PureAV Pf60 (top of the line), to tell you the truth I was only able to notice an improvement to the video of quality of my DLP tv, and not to the sound of my system. I actually felt the sound was refrained a bit, lacking that kind of "oomph" that I like to hear for my music. I experimented with unplugging and plugging gear, and found that it was my power amp to blame (Rotel RB-1080 200wpc). I voted "directly to the line", as it is where I plug my power amp. Everything else is in my PF60
