Just for your information, for many years I continued to use a Krell HTS 7.1 until about a year and half ago when it finally died. Keep in mind this is a product that was released in 2002 (much older than your SSP-800). I had tried several other home theater processors that used HDMI and bluray hi-res audio (including a couple that were very expensive). None of them could reproduce what the HTS 7.1 did in sound quality!! Ya know what, I ended up putting in a new Krell S-1200U (which is about the same generation as your SSP-800).
I did try out the Emotiva XMC-1, which is --probably-- on the same par as the AVM 60. I would say that it gives you an excellent amount of performance for what you are paying. However, even the HDMI audio could not compete with the HTS 7.1 down-converted digital COAX audio! The resolution and separation-of-instruments just wasn’t there and the Emotiva sounded a bit closed in.