In my limited experience, the effects seem to vary depending on the power cord. I use a couple of FIM Gold PCs on my audio setup (I find they do make a material difference here), but I tried on on my CRT projector and noticed no discernable difference. I'm now using a custom Belkin cable on my projector(way cheaper than the FIM), and I beleive there is at least a subgle difference, which may get more obvious over time (as the cablet is new/not-burned-in yet).
