I am interested in this approach as well. I live minutes from Parts express, coincidentally, so I can pick up the fluid easily enough.

I am a little disheartened that a $50 driver can be such an awesome drop in replacement for a Meridian speaker. I always got the impression Meridian were a cost no object kind of design, but clearly that is not the case. Has SEAS driver technology come so far in the last few years that once great (expensive) drivers can be replaced with bargain basement ones or did Meridian never put much into the drivers in the first place? Replacing the tweeters in a nautilus B&W is staggeringly expensive in comparison to these SEAS.

Well, I'm not that disheartened since it sounds great. But perhaps I short changed myself with the H1212's. Maybe a set of upper echelon SEAS drivers would be even better?

Living Room: TV-->Sonos Arc with Symfonisk rears and twin Sonos subs. Also, a set of DSP8000SE with a MiniDSP SHD for stereo listening.
Listening Room 1: G65, DSP7000SE, DSP3300, DSP3200
Roon Core: NUC7i7