I have 1 pair of speakers that are connected to the receiver or power amp by bi-wiring, (both receiver and power amp have A+B speaker capabilities). So when I'm spinning vinyl the pathway is:
TT=>phono preamp=>Tandberg Receiver.
When I listen to computer music files the pathway is:
computer=>DAC=>preamp=>Primare A32 power amp.
An all-in-one preamp conveniently combining inputs for the vinyl and digital would negate me having to switch speaker cables just because I wanted to throw on an album after listening to some digital tracks on the computer (or vice versa).
@fuzztone I don't see how the switch box would work with bi-wired speakers. But the Sanders looks interesting.
@soix I'd appreciate it if you could name those few preamps with a good phono stage. As I mentioned earlier, I'd be trading out the new preamp for 3 boxes (preamp, phono preamp, and receiver).