While I have no directly relevant experience, my strong instinct would be to use an approach that does not involve having a computer (which of course is a potent generator of RFI and digital noise) either directly connected to, or physically close to, the system you would be using for analog playback and digitization.
I would suggest that you consider recording the output of the A/D converter onto a professional recorder that records onto flash memory cards. Or possibly even using the A/D converter that is typically built into those recorders. A very well regarded although perhaps slightly dated example is the Sound Devices 702, which includes an apparently excellent built-in 24/192 A/D.
Subsequent to digitization and capture of the digital file, you would transfer the file to the computer either via a firewire connection between the recorder and the computer, or by removing the flash memory card from the recorder and inserting it into an inexpensive card reader having a USB interface.
Another point to consider is that if you do any necessary monitoring during LP playback using headphones, the vibration immunity of the turntable and its supporting structure become much less critical than if you were listening to the LP's via speakers, assuming, for example, that you don't live directly above a subway line :-). Taking that into account in selecting a turntable setup could result in a savings of many $thousands without sonic compromise, it seems to me.
Regards,
-- Al
I would suggest that you consider recording the output of the A/D converter onto a professional recorder that records onto flash memory cards. Or possibly even using the A/D converter that is typically built into those recorders. A very well regarded although perhaps slightly dated example is the Sound Devices 702, which includes an apparently excellent built-in 24/192 A/D.
Subsequent to digitization and capture of the digital file, you would transfer the file to the computer either via a firewire connection between the recorder and the computer, or by removing the flash memory card from the recorder and inserting it into an inexpensive card reader having a USB interface.
Another point to consider is that if you do any necessary monitoring during LP playback using headphones, the vibration immunity of the turntable and its supporting structure become much less critical than if you were listening to the LP's via speakers, assuming, for example, that you don't live directly above a subway line :-). Taking that into account in selecting a turntable setup could result in a savings of many $thousands without sonic compromise, it seems to me.
Regards,
-- Al