Titian,

I'd appreciate it if you edit your post to remove the offensive comment that Tenson mentioned. There is no need for personal insults.

As for Rob's views, I'm going to have to agree that his views are as valid as anyone else's here. We all know HiFi is highly subjective and we can hear things the way we want to. I personally believe that any tweak CAN make a difference in theory. In practice whenever I've heard a difference in cables, siolation there can normally be a perfectly logical explanation such as LCR, susceptibility/resistance to RF or magnetic fields, isolating microphonic effects etc. etc. However, I'm having a hard time believing that changing fuses can make a difference. If it does, then just clean the damn things periodically, along with all the other contacts. If you want to believe they make a difference fine, carry on believing that, but at the same time please be prepared for others to question that belief without resorting to personal insults.