The MC200 has variable analogue outputs that you would connect direct to a power amp.

Control the volume by iPad, I have this arrangement for headphones.

The power amp could be installed in the ceiling above your speakers. Just about any old power amp will do for your purpose, no need for a Meridian one.

Neil

1) MS200, G65, Revivers, DSP5000.2, DSP5000C.2, DSP3100, D1500, SME10/IV.

2) Mac Mini (Roon), Explorer 2, Sennheiser HD6XX.