Anthem P2

Thinking of replacing my old Mac 7270, anyone have any experience with the Anthem P2?
I have an Anthem P5. Tons of clean power and it sounds great. Just be aware that it is very heavy and very deep.
The Anthem is actually 7 lbs lighter than the Mac, but at 22 1/2" deep it will just fit.
What can I expect in sound improvement from the 25 year old Mac?
I am not that familiar with the Mac sound. When I purchased my P5 new I did listen to many amps and could not seem to beat the price/power/quality of the Anthem. It drives my Avalons (not an easy load) seemlessly. It is a keeper for me.