[urbanshaman]

I should just try this myself, but I'm wondering if anyone is using, or has tried to use, an older preamp with a good phono stage connected to a newer line stage preamp. I'm thinking one could simply use the tape out of the old preamp to any input of the line stage. This might be a way to avoid buying  an outboard phono stage that could be costly.

[sunnydaze]

That's exactly the correct way to do it.

I've done it many times to access the phono section inside older receivers, integrateds, etc.

[Elizabeth]

I own a half dozen preamps. I have at least three other preamps connected to my main preamp. And yes two of them are for the phono stage in the secondary preamp.
Works great.