With Audyssey (and I assume Trinnov from the specs) there is no need for a separate sub-woofer manager. In fact it is strongly suggested that you take the SMS-1 out of the loop when using Audyssey as it can actually impede the room correction process. That's exactly what I did when I added Audyssey Pro to my arsenal of tools a few years ago (first with the Denon 3808ci and now with the AVP-A1HDci).

These full system room equalizers take over all the functions of other boxes and I can't imagine that Trinnov would be any different in that regard. The one new wrinkle that Trinnov brings to the table is the ability to acoustically relocate speakers in difficult placement situations. If the 997 is able to pull this off in a reasonable time frame it brings something very interesting to the table - especially at its price point.