Need help!!!

I currently have a Music Hall mmf 5.1 and am looking to upgrade but don’t want to spend more than $2200. Any suggestions?

My system is a Marantz Cinema 70, Bowers & Wilkins 607s, and 2 REL Tzero MKIII subs (placed as left and right lows). 

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I would try a Herbies mat before doing anything. It made a very large difference when I had my MMF 5. It was horrible on my Linn, so it’s not a cure all, but it really works on the Music Hall. I am generally not a fan of tweaks, but this worked very well. Really. As far as an upgrade goes,  I’m not sure you can do that much better for $2200.