@surmuz it’s shellac, not vinyl, they are mono and probably played to death with steel needles in the 40s. Those are made before RIAA was invented. It’s different technology.
So you need completely different needle to play those 78rpm today, and you can’t compare them even to old microgroove (stereo 33rpm) high fidelity LPs from the 60s for example.
So you need completely different needle to play those 78rpm today, and you can’t compare them even to old microgroove (stereo 33rpm) high fidelity LPs from the 60s for example.