Devialet Phantom?

Saw an ad for these speakers and checked their net site.
They certainly look fascinating.
Curious, has anyone seen or heard these speakers?
Do you need a Devialet front end to use these?
I haven't heard them, but agree they look fascinating.  Their website says they can play over wifi or bluetooth so no need for Devialet front end (but can take optical as well from a pre-amp etc).
 They are more of a Sonos on steroids concept.   With two and bridge they can be done stereo, multi-room etc.
I would stay away from the phantom.  They just don't sound all that good in my opinion.   Personally I would look at the Naim mu-so or even Sonos.
The bass on these speakers gave me a headache after a short listen. I did like the Devialet integrated amp on some big floor standers (maybe B&W).

I do not see the reason for the hype on the Phantoms. I think my KEF LS50 are better all round than the Phantoms in a small room (near field).