The problem started after changing your IC's and speaker cables. Changing something else won't fix the situation. A fuse change can change the overall sound but won't fix the problem. As I see it, you have several options. The first would be to sit tight for 200-300 hours and see what happens. If you have a streamer or transport with the ability to play continuously, that is easy-just run it nonstop while you're home. This is the easiest, but I suspect it won't change things to your satisfaction. The second depends on if you still have your old cables. Trade out either the IC's or speaker cables with your original cables. I would start with the IC's. This will help you locate the likely culprit. Once it has settled a bit, reverse the process. If it is clear which cable set is producing the problem, change only that. If you're not sure, go back to your original set up and reverse the process. Silver can be intoxicating because the upper end gets super focused and clear. My ears can tolerate it only for about 30 mins. I have a combo of silver and copper in my system and they balance each other out nicely. I would also work with the Cable Co. They are very friendly and knowledgable. Good luck.
Aftermarket fuse to tame a bright system?
Been reading all the interesting posts here, I've recently switched over to Audioquest silver interconnects and speaker cables, the improvement is easy to hear over OCC copper - lower noise floor, more clarity, greater transient snap, larger soundstage etc.... BUT.
I would say my system still has body, but the top end is now bright/harsh. Could an aftermarket fuse tame this, so that I can still retain the clarity and other benefits of silver? I'm concerned that this potential solution may make my system more dynamic, and potentially give it a U or V shape sound profile - which is definitely what I don't want.