I found a use for my trigger 2 in the 7.1 mode or the pass through mode.Niles makes an A/B switcher that uses 12vdc. I was using a passive switch box to toggle between mono poles for SACD rears and dipoles for movies.Once I switch to 7.1 on the 990 it automatically swithes my surround speakers to mono poles which are identical to the mains and center .How cool is that.Price for the box from niles 79.00 .It's the Niles SPK-1.It just keeps getting better.