Several years ago, I did a lawsuit representing Quincy Jones. I learned more about music from Q than I ever thought I could. Hell, I thought I knew a lot about music before meeting him. After a few days of talks, I realized how little I knew. He showed me the true difference in listening to a master of a great recording and a CD quality version of the same recording. Those of you who think there is no difference above CD quality are as clueless as I was. The biggest thing he introduced me to was true studio quality headphones. Q never used speakers to master his music, always headphones of the highest quality. He eventually decided there was a problem with studio headphones, and that was they didn’t compensate for the individual ear. As a result, he led AKG to developed headphones with what is essentially in ear room correction. They were pricey as hell, but absolutely phenomenal. I helped him win his case and was rewarded with a pair of AKG n90Q’s. His techs helped me get them just right. I tested them against every studio quality set of headphones that have come out sense. They blew everything away. Unfortunately, after 6 years, the power receptacle just broke on a long flight. These have been off the market for a while, so I went with another client recommendation. The B&O H95s. This is like going from a symphony to a high school band. RIP greatness.
Possibly of interest: reverb listing