5.1 A/B switch - XLR - where?


Can anyone recommend a (sonically transparent) 5.1 A/B switch with XLR connects?

To elaborate, I wish an A/B switch with two sets of (5.1) inputs & one set of (5.1) outputs - utilizing XLR/balanced connects. I can't seem to find anything suitable via the obvious search methods.
TIA!
salmonsc
Yes. I prefer the Zektors but they, too, are only available used. There are others, though.

Salmonsc, the company that makes the switcher in my previous post also does custom work. There are a few options to Begin the Design Process for your Custom Data Network Switch. They may be able to give you a price by phone for a 6-Channel XLR Audio A/B Switch.