Tony, do you have the problem with movies or music?

I certainly don't have any issues with music, and after great deliberation (with myself of course), I prefer the Meridian way where the sub 'disappears' into the overall image. You can certainly tell when the sub is off when the lack of bass extension becomes apparent.

The only other thing is I wonder if the processor could have made a difference - @JackFlash has a 818v2, and I have a 861v8.

Lounge: 861v8 with ID41, 218, UHD722, Sonos Connect Wyred4Sound, AppleTV, Oppo 105, DSP8000SE, DSP5200SE
Streaming: Roon/Spotify
Currently not in use: DSP5200 x 2 pairs, DSP5200HC, DSP3200, 218 x 2, MS600, DSW x 2, MC200, Sonos Connect Wyred4Sound