I had the same setup but went in a different direction - I changed my 6000 fronts for 7000s.
I found that since the 7000 and 5000 are pretty much the same height I didn't have to fiddle with the axis so much as when I had 6000s.
I'd like to go 7.1 but my room won't really accomodate another pair of 5000s and I'm not sure how well DSP33s would work - maybe I can convince she-who-must-be-obeyed that DSP420 in-wall speakers would be acceptable!

Graham

Meridian Owner since 1991