So you're saying I need to believe that a tweak has been applied to convince myself that the system is performing better; if an outside person were to somehow remove or cancel out the impact of the tweak without myself knowing I wouldn't perceive the sound not being as good anymore? If that's what you're saying, that's pretty bizarre, considering that at least half the things I try I very quickly reverse because they only make things worse ...Your tweaks are the psychological trigger that allow your mind to believe what it must to tell your brain to perceive the unlikely to impossible. Mind/brain. The tweaks could be anything you would buy. None that you've described are substantial.
High quality components will normally sound much better than bottom of the barrel stuff, so, for example Roger's system is greatly superior to my Philips in raw form. Plus less will need to be done to get the better gear over the "palpability" hump. My HT system will never be as good as Roger's, will never sound exactly like Roger's, but there is a barrier, a hurdle to be surmounted, and if I throw enough expertise and willingness to experiment at it a good result will be got, it will sound real, and that's all I'm worried about ...A Yugo will not become a Mini no matter how carefully you re-align the front end, and you and I will have to agree to disagree.
A frame of mind thing? That for now will have to be a "agree to disagree" too. If the system ain't right, it'll stay not right, day after day, week after week, until I get off my lazy bum and fix it ...
The only time the frame of mind thing comes in is if I have to endure someone else's not too brilliant setup, when I dose myself with whatever red liquid is available, till the numbing of the ear drums allows me some respite.
Frank