Can't say I've been in your position, but why don't you declare a moratorium on making any changes to your system for a year. I assume you've got quite a good system by now. Let it be. If denied the reward of getting new things to analyze, maybe your left brain will tire of the game and quiet down.
Concentrating on getting out to hear a variety of live music might inject some fresh excitement of the non-left-brain variety into your music appreciation and get you off this analytical track. If you really have it bad, put your system on blocks for a while, and only listen to live music. When you go back to your system, do it without making changes.
Sounds like you need to give up the hifi hobby, since it's not fun anymore. See if you can get yourself a new hobby, and just use your stereo for listening to music.
Concentrating on getting out to hear a variety of live music might inject some fresh excitement of the non-left-brain variety into your music appreciation and get you off this analytical track. If you really have it bad, put your system on blocks for a while, and only listen to live music. When you go back to your system, do it without making changes.
Sounds like you need to give up the hifi hobby, since it's not fun anymore. See if you can get yourself a new hobby, and just use your stereo for listening to music.