Digitizing from LP

[SparkE!]

Yeah, a phono amp usually consists of a low noise front end amp, followed by the RIAA equalization filter, followed by a line level output buffer amp.

[zowie]

I stated the point - you could then route the "catridge capture" to any preamp you might have. - Thats the point.

That's what I don't see the point in doing.  Why would anyone want to bother to do that?  If they're interested in comping phono preamps, then they can plug the turntable into the phono preamps and be able to better hear the sound of the preamps without the additional degredation and coloration of the recording preamp, D/A and A/D conversion and digital player output stage and extra cables.  If they're recording to CD (or other digital media) then who needs to screw around with running the CD player through a phono preamp to hear the disc.