Sorry, jerky of me to shoot something down without answering the question! It doesn't necessarily need to be a preamp- I believe you can simply add an outboard analog volume control. That said, I don't know if there are any quality ones made. And as Blkadr mentioned, you can consider passive v active preamps.
Wouldn't it be nice if you could send SACD through that Birdland??
Wouldn't it be nice if you could send SACD through that Birdland??