Not all the Atlantic albums had sound which was unsatisfactory. For instance, some of the sessions recorded on the West Coast (Shorty Rogers, the early Jimmy Giuffre trio albums in particular) have natural sound. On the East Coast, when Tom Dowd took over the engineering, things improved also but the finished product too often left to be desired.
I just wish Atlantic had maintained the audio quality of their released products to the level reached at the time by Contemporary, BN, Prestige and other labels