A lot of Rudy Van Gelder's work was not recorded in a NY apartment, but in the living room of his parent's suburban home in Hackensack, NJ. RVG's actual studio facility, where later things were recorded is/was located in Englewood, NJ
Given the fact that you had the likes of Miles Davis, John Coltrane, Philly Joe Jones, Thelonius Monk, etc. camped out in your parent's living room, playing their instruments while you drag your mics, recorder, cables in there explains a lot of what people are hearing. While they may not be tapes that demonstrate what the audiophile community likes in a "reference recording", I like to think that they are more of a snapshot of some of the greatest musical minds of jazz, that happened to be captured for later listening.
Given the fact that you had the likes of Miles Davis, John Coltrane, Philly Joe Jones, Thelonius Monk, etc. camped out in your parent's living room, playing their instruments while you drag your mics, recorder, cables in there explains a lot of what people are hearing. While they may not be tapes that demonstrate what the audiophile community likes in a "reference recording", I like to think that they are more of a snapshot of some of the greatest musical minds of jazz, that happened to be captured for later listening.