If you want to get deeper in jazz, there are plenty of classic recordings that while not "audiophile" are still indispensable. This is one of them. There's way to much emphasis put on the technical aspect of recordings -especially here- and not enough on the musical qualities. Jazz is a music created on the spot, if you avoid live recordings or simply "non-audiophile" recordings, you'll miss plenty of good music. Between "Jazz at the Pawnshop" and Blakey "Live at Birdland", an audiophile will tell you to take "Pawnshop". Except that, musically, "Pawnshop" is totally insignificant. While "Birdland" is an absolute classic with top notch musicians at the top of their games. Oh, and "Live at Birdland", while mono and live, sounds more than acceptable. My 2 cents.