The fuse is not made by PS Audio, by the way (it's from a German company named AHP).
I've done quite a bit of research on fuses over the past couple of days (I've been worried that it makes my Lavry sound better because it is letting too much power through, or something like that) and found some interesting things. There seems to be much more acceptance of the idea of fuses improving the sound of audio equipment than power cords and power filters. The most illuminating discussions are probably at DIYAudio.com. It really seems like a fuse has the potential to improve a system that is a bit lacking in punch (which I believe is the case with the Lavry). As I've said elsewhere, this new sound I'm hearing is exactly what the Lavry needed, I think...giving it the best of both worlds (a slightly more powerful, yet still neutral, presentation combined with second-to-none jitter protection).