What is your experience with the law of diminishing returns ?


As subjective as it might be. Personally, I have not encountered it yet.
inna
When I first started upgrading, I could hear the difference.  However, I couldn't always tell if the upgrade was an improvement, just different.  Eventually I learned.

I hit diminishing returns when I couldn't hear a difference after an upgrade.  But there was still a  cumulative effect from multiple upgrades -- like I couldn't hear differences each time when upgrading amp, preamp, and cables, but after all three upgrades, I could hear the sound was better.

So I kept upgrading until I got to a level where my ears/brain had stopped learning and I really couldn't tell any more.
What is odd is I have the opposite experience. When I had mid fi stuff, wire made no difference. It was all the main equipment that caused changes. When I have better mid fi stuff I could barely hear changes with a few wires. Now, I have a really good mid fi, bumping High end, and damn, each and every wire swap making minute changes I can easily hear. At the same time, the equipment sound changes are small. almost as small as the wires..
You guys gotta check it out. Low mass inexpensive systems are where it’s at. No more house AC, AC ground, no more speakers, speaker cables, amplifiers, preamps, interconnects, digital cables, fuses, no more transformers. No more distortion. No more noise. No more pencils, no more books, no more teacher’s dirty looks. 🧐