which amp should i get another marsh, aragon, eAR

Hi, I have a Marsh hybrid pre-amp, Marsh 400s amp and Paradigm studio 100 v2. I am trying to decide if I should get another Marsh 400s and bi-amp, aragon 400w mono-blocks, or a digital amp thinking eAR one mk11? I would like to bi-amp with 200 wclass A's and eliminate passive cross-overs and have more control. On the other hand, Aragon and digital amps with more power. I know the amplifier is the most important upgrade, but do not which way to go. Can anyone offer any thoughts. Thank you