Anthem P5 vs Theta Dreadnaught II

I'm located in Pittsburgh, and yes have a surround system.
The P5 is very dynamic and transparent - I want to improve my two channel performance and prepared to sacrifice multi-channel performance if necessary. I originally demoed the 803's with a Musical Fidelity Nu Vista Amp, which was very musical - but MF are not in the multi-channel business, consequently looking for an amp with a similar voice.

I am currious at to budget? Have you considered the Plinius Odeon, this is a devasting multi channel amplifier one of the best that exsists.

Appreciate the feedback, I concluded that 2 channel takes precedence and got a good deal on a Musical Fidelity KW500 -I'll just get a good 3 channel amp for the other channels.
The Plinus Odeon is clearly an excellent HT amp.