In the case of vinyl there are a number of things which are usually done in the production of regular LPs (that must play on non-audiophile equipment) which can be omitted for "audiophile" recordings.
Groove spacing can be wider so as to minimize "pre-echo". This reduces playing time.
Mixing of LF signal to Mono can be minimized. The resulting vertical groove modulation may cause problems with non-audiophile pickups.
Quality of the vinyl can be improved. Reduced surface noise permits greater dynamic range.
Greater dynamic range is also possible by using higher peak stylus velocity which non-audiophile pickups can't track.
The use of 45rpm instead of 33rpm avoids degraded sound near the end of the record where velocity of the vinyl past the stylus is too slow for a 33 rpm disc.
There are various recording techniques that result in better master tapes. These improvements benefit both digital and analog products.
Groove spacing can be wider so as to minimize "pre-echo". This reduces playing time.
Mixing of LF signal to Mono can be minimized. The resulting vertical groove modulation may cause problems with non-audiophile pickups.
Quality of the vinyl can be improved. Reduced surface noise permits greater dynamic range.
Greater dynamic range is also possible by using higher peak stylus velocity which non-audiophile pickups can't track.
The use of 45rpm instead of 33rpm avoids degraded sound near the end of the record where velocity of the vinyl past the stylus is too slow for a 33 rpm disc.
There are various recording techniques that result in better master tapes. These improvements benefit both digital and analog products.