I had kind of the same setup. I had the P7 and A21.
I upgraded to a Luxman and have been deliriously happy in the sound quality. I went from Parasound to Class D to Luxman. The first two were, for me, equivalent, except in non-audible parameters (i.e. cost, size, heat). The liquidity of the Luxman's mid/top end along with significantly better bass extension was a big win for me.
I've heard Marantz and they're just OK. Not heard the Anthem, but the room correction is a really interesting feature if your listening room is acoustically constrained.
I upgraded to a Luxman and have been deliriously happy in the sound quality. I went from Parasound to Class D to Luxman. The first two were, for me, equivalent, except in non-audible parameters (i.e. cost, size, heat). The liquidity of the Luxman's mid/top end along with significantly better bass extension was a big win for me.
I've heard Marantz and they're just OK. Not heard the Anthem, but the room correction is a really interesting feature if your listening room is acoustically constrained.