Long time lurker looking for HT opinions

@maxwave "For Home HT , you want fast clear  speakers  : Focal , Monitor Audio ."

Totally agree. I have MA's in my main system and JBL in-wall for my HT. 

With more and more music and movies being done/redone in Dolby Atmos having a timbre-matched set of speakers is more important than ever. At the very minimum all from the same vendor as they will likely share the 'house sound'. 

@shooter41 As impressive as the D&D 8Cs are, integrating them into a HT appears to be quite a challenge as you will have 'dueling technologies' both acoustically and electronically between the D&Ds and the other speakers in the system and between the Lyngdorf HT processing and the onboard D&D processing.

I would consider doing the HT as a separate set of speakers entirely from your 2-Ch setup and using a high-quality in-wall solution for your HT needs. That way the visual intrusion in your room is minimized, and your 2-Ch listening and the D&Ds are unfettered by the competing interests of the HT requirements. 

@panzrwagn The plan is to set the D&D's up alone first, then when they're dialed in I'll set up the rest of the system with the Lyngdorf.

I get what you're saying about an alternate plan but using on-walls (it's an exterior wall so I don't want to compromise the thermal or acoustic resistance of removing insulation to install in-walls) would be problematic as getting some that are comparable to the R-series KEFS in the rest of the system would be too costly considering that I'm already stretching the budget to get the D&D's.

I could repurpose the speakers that were going to be the front wides as main L&R speakers for HT, but that would mean a pretty crowded front end of the room.

If the dueling technologies do compete I'm not that worried about it unless it turns out to be a complete disaster. It would only happen during theater use, not music since I do plan to listen to the D&D's alone the majority of the time. I'm going to give it a shot as planned and and will adjust accordingly if needed.

What is meant by a fast speaker?