6.02dB per bit, so if the pre-emp causes you to allow headroom of
18dB (RIAA is around +18 near 16kHz), that's 3 bits.
with 24bit acquisition, still not a big deal. headroom is headroom,
whether analog or digital. one click/impulse and you'll clip anyway.
the AES paper said there may be a bit penalty, yes there is, but any
phono preamp also has to allow for this.
given that vinyl *might* have 60dB of usable range, that's 10bits.
take 4 on top, we have 14. now lets' go to 24, with a true 24bit
converter (Weiss, Prizm), which few people have... i think there's
plenty of room here.
you either spend big money on the preamp, or the converter, but of
course, i want both.
At 8:43 -0800 3/10/10, Jim Sam wrote:
>On Tue, Mar 9, 2010 at 6:42 PM, Eric Jacobs <[log in to unmask]>wrote:
>> Transfering FLAT will cost you about 6-7 bits of dynamic
>> range - an audible loss.
>36-42 dB*? ~10-12 is more like it, which is two bits max. That leaves 22
>bits, which is more than adequate.