The review of Strix Raid Pro is up at KitGuru.... Looks like the guys are liking it. I think I'll rather go for the Soar version - since the sound control module might distort sound like with Zx series (and it's like $25 cheaper) - local shops release date of the cards is set on 4th Nov.
http://www.kitguru.net/components/soundcard/zardon/asus-strix-raid-pro-7-1-pci-e-sound-card/
http://www.kitguru.net/components/soundcard/zardon/asus-strix-raid-pro-7-1-pci-e-sound-card/