This tutorial by @atomicbob complements the video. I feel it emphasizes that a midground between measurements and objective listening is important to consider. E.G. when I first got into high end audio in the 1970's Harry Pearson and The Absolute Sound were very influential in the high end audio world. HP mainly dismissed measurements as long as they were not grossly bad and used his ears to judge equipment. His endorsement could actually make or break a company. Over the years I found myself listening to several high end two channel systems using Recommended Components from TAS and was never disappointed. Vinyl at that time of course.