no no... What I meant was to use the TACT as the sole processor, not a Meridian processor + a TACT. The idea sprung to mind when I read that the Tact could output the target voulme via rs232, in order to control their digital power amplifiers. So, shouldn't that make it possible to control the volume of an entire set of Meridian DSP speakers?
However, I don't know, this might be a blasphemous thought in this forum. I really like Meridian speakers and thought that this could be a way around the room correction feature that never seems to be delivered.

1: 861v8+ID41, HD621, 2xDSP8000SE, DSP7200HC SE, 4xDSP33s, 2xAC12s, Sony VW500ES 4K projector, 132" 2.35:1 screen, SMT room treatment, Oppo103D, Roku 3, Plex, Sonos(wimp lossless).
2: 861v4.8+ID40, HD621, DSP5200SL (BRG), DSP5200HCSL, DSP3100s, AC11, D2500, Roku 3: Plex, Sonos.
4: MC200(Reviver), DSP3100s, SW1600, Sonos.
5: G68, DSP3100, DSP5000C.