Your system looks well-balanced & thought out and from your comments you may be better off not touching it at all; you've obviously struck a good balance with your components -- no easy task with the mini Utopias (formidable, IMO). A change of source equip MAY upset the balance, leading you to a long & expensive upgrading path...
I believe that IF you ever decide that change is necessary, two out of three components will have to go: you'll have to choose the piece that remains (speakers?) & re-build around that... Meanwhile, why not play with equipment support, starting with the Meridian? Cheers
