Good/great preamp with ht pass through? Thoughts?

Hello thanks for your thoughts...

I have been in the market for a preamp that also has a pass though (gainless) switch for my hometheatre system. I have looked at the VTL preamps...Both the 2.5 and 5.5 have this feature. I am interested in almost anything, and a list if anyone has one would be nice. Trying to find some new reading material.

Thanks for your time.
Ben