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rough calculation...

Ok, I remember reading the *real* spec. somewhere but have forgotten it now. No matter, I will try to calculate it:

If they use electrodeposition to produce the stampers for the 'pits' on the die, then typically the dimensional accuracy for the smallest feature that can be produced is ~0.5 microns (0.5 x 10^-6 m)

Vinyl travels at speeds across the stylus at roughly: 1.6 cm/s to 0.8cm/s (at start & end) - or 0.016 - 0.008 m/s

Thus, the sample rate is approx:
0.016 / 0.5 x 10^-6 per second = 32 kHz at start
and 16 kHz at the end.
(that's for EACH channel of stereo)

Happy listening...


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