The Zektor MAS is just an HDMI switch similar to what Oppo also sells.

It doesn't do anything other than give you more HDMI ports.

Won't help you convert the multichannel audio signal from an HDMI 1.3 device into analog audio that you can send to your prepro.

You will have to wait until Outlaw comes out with their new prepro sometime in spring of next year which will have HDMI 1.3 compliant inputs and be able to decode all of the lossless multichannel formats that make HDMI 1.3 important.

In all reality though, there's no real big reason to upgrade to HDMI 1.3 as most of us will not see a dramatic increase in sound quality of multichannel movies with it.