Inpepinnovations,
I think it is both.
On an anlogue mastered tape the sounds, frequencies and harmonics are left 100% in analogue form from the moment the tape recorded them to the cutting of the master disc and the pressing of vinyl. Every step of the chain can add or detract to the sound and colour. Poor master disc cutting will affect the sound but good master disc cutting will eventually give you a superior mold to press vinyl from. Poor vinyl material will affect the sound good vinyl material will preserve sound better. A better turntable, tonearm, cartridge all set up and in proper working order will retrieve sound from the groove better.
I think a cut master from a high quality say 24/96 digital master will produce a good vinyl LP. The cartridge will track it well if the cartridge is well made and in good order. The cartridge will possibly add to the harmonics of the sound and that will affect sound.
Digital will not be perfect either. Mix downs to errors in transfers and all generations of digital transfers and production have bit code errors. Quality of components and ultimately quality of the discs and CD players will all affect sound quality of the music. The saying that all CD players sound the same is untrue. Not all CD discs themselves are same quality. So no matter what you used analogue or digital by the time the consumer gets the product it has been affected by the chain of production. Some cases worse others not be they both CD or vinyl including a cd from analogue or digital masters or be it a vinyl LP from a digital master or an analogue one.
In the end I think an LP from analogue masters will sound truer to what the music should sound like than one from a digital source or from a CD made from the analogue masters will likely sound better than digital masters. It is all degree of compromise to the consumer. This is why some listeners are fine with $29 CD players and with MP3 sound when others spend thousands on a CD player. This is why some consumers are fine wit $79 cheapy turntables but others will spend thousands.
I think the best source for quality recorded sound is better to best analogue reel to reel machines. But are not as practical for most consumers. Vinyl will be less accurate but will vary from deck to deck because of how it all works. Digital is chock full of possible compromises and other errors. In the end an LP is likely more accurate overall and more natural to our ears than a CD. A digital LP will likely be more pleasing than the CD version because the few inaccuracies it may add will more likely be heard as more pleasing to the listener where as the inevitable inaccuracies in CD playback are nothing but negatives to the listener. I hope this all makes sense.
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