I listened to Jascha Horenstein conduct Brahms3 with the Southwestern German Orchestra. On a Pristine Audio restoration of a late mono era Vox recording. I’ve had the Vox for years though I haven’t played it that often. The Pristine enhancement is definitely worth it. One now perceives air around the instruments and a real soundstage. Solo woodwinds are more prominent, and what used to be a third tier sounding Orchestra now at least sounds second rate.
I admire JH, and collect many of his recordings, but his Brahms 3 isn’t really for me. It is definitely old school, autumnal Brahms, although extremely well done. It sounds deliberate and thoughtful, and not like the flabby mess that Giulini made at the end of his career, and less gimmicky than Bernstein’s outing with the VPO