Advacdude,
I have a Denon 3803 and I use the (B) channel setting on my Denon for a set of M80ti these are set to the rear sides I run these along with the front M80ti and the center VP150 when listening to SACD or DVD-A. This is a perfect tonal match also you could use the M22ti in the side rear position the same as I use the m80ti. Hope you understand what I am saying.

Axiom M80Ti(4) Axiom VP150(1) Axiom Qs8(4) Axiom M22ti(2) Axiom M3ti(2)