Robert Brook runs a blog called The Broken Record, with a subtitle explaining what the aim of his blog is:
A GUIDE FOR THE DEDICATED ANALOG AUDIOPHILE
We know of none better, outside of our own humble attempt to enlighten that portion of the audiophile community who love hearing music reproduced with the highest fidelity and are willing to go the extra mile to make that happen.
An excerpt:
I am here to tell you, however, that in the few short hours that I spent with Robert and his system, I gained a tremendous amount of knowledge, both in technical tweaks and in the philosophy of how to listen. Despite owning either identical hardware or that of similar ilk (same speakers, cartridge, similar turntable, treatments, and so on). Robert’s system sounded fundamentally different from mine.”
This is surely the result of the large numbers of small changes — with potentially big effects — Robert made to his system, proof that the 80/20 rule is real.
If you click on the 80/20 link above you will find links to hundreds of test records at the bottom of the commentary, along with this paragraph:
These are the records that challenged me and helped me to achieve more progress in audio. If you want to improve your stereo, these are some of the best records we know of to help you take your system to the next level.
To that end, I recently compiled a list of seventy or so records that had been helpful in getting my system to sound better, mostly by working on the many problems I heard when attempting to hear them at their best over the course of the last forty-plus years.
These two were by far the most helpful, but, as I say, there were scores of them, records that I played hundreds and hundreds of times while I went about tweaking and testing. (That’s how I ended up with the lovely lattice all over my soundroom that you can see in the pictures below.)