> Actually, from an audio engineering perspective, this is quite true (at least for vinyl), since all records were run through a low cut filter in order to eliminate rumble/skipping due to low sonic frequencies distrubing the needle in a record groove.
sub 20 hz would be filtered by the rest of the audio chain (hello psychoacoustic filter on all compressed music), or would end up disturbing the mix anyway. Judging the excursion of the speakers in some badly mastered techno records, i think that vinyl can go sub-20hz.
The problem with skipping is instead the low frequency phase, due to the way stereo information is encoded in the groove.
> If we are talking a clean, complete signal, vinyl records have plenty of deficiencies of their own, despire what so-called "audiophiles" might tell you.
Well I'd first scrap 44.1khz, cellphones, pc speakers, crappy DACs, only then I'd look at vinyl.
The low range is good enough on vinyl, it's the upper range that suffers, plus those pops and noise.
OTOH the sound of vinyl is not a clean signal + the noise of the needle on the groove, it's obvious that picking up the signal distorts it more than a DAC does, whether that ends up in a pleasant effect, not unlike valves, it's debatable. Personally I listen to the music, not the system.