At 03:14 PM 7/8/03 -0700, Tim May wrote: >As for hearing heterodyning in 28 KHz and 30 KHz signals, maybe. CD >players have brickwall filters to of course block such frequencies. >Some analog groove-based systems can have some kind of signal up there >at those frequencies, but not much.
Regular vinyl is (was) also recorded with all kinds of filters, too, including the lowpass ones. If you cut vinyl (or metal) through a signal chain that didn't impose the filtering, perhaps the ultrasonics would remain, which is perhaps the analogophiles claim. You would need a special vinyl cutter though. Some of the filtering imposed on vinyl was to not fry the cutter, or otherwise deal with its inertia. (BTW, I thought your Monster USB cable was a prank.. its not.. some folks just don't get digital..)
