"Eiron" wrote in message
...


The RIAA filter is reversible, as is done in any phono preamp,
and is therefore not butchery.

Agreed. If you take a high quality RIAA pre-emphasis network and follow it
with a high-quality RIAA de-emphasis network, you end up with a good
facsimile of the original signal, only significantly attenuated. Amplify it
with a good amplfier, and you're pretty much back where you started.

The worst part of the LP process is playback. It's pretty easy to cut much
better grooves than any practical phono cartridge can play back with any
degree of accuracy at all.