The French chap that runs "The State of Sound" blog has recently written about the Phantom. He revealed a few things that I didn't know, including who makes the speaker drivers. He also had a bit of criticism for the demo at the Devialet showroom in Paris, as apparently the acoustic set-up was not optimal and both the WiFi and AirPlay (his term -- and here I wonder whether Devialet is really going to try and make Air work on the Phantom when it's still a weak link in the Expert line) were not functional. He was also disappointed not to be able to try the new Spark app. Nonetheless, he is quite complimentary about Phantom. Here is a link to his posting.
Devialet Expert 220 Pro Kinki EX-M7 power amp tethered to a fiber-fed Lumin X1 streamer via Grimm XLRs, Vivid B1 Decade speakers in Rosso Barchetta red (only 200 produced in a limited edition), Roon Nucleus with a Samsung 860 EVO 2TB SSD, etherREGEN switch fed by a Sonore opticalModule (and Sonore-supplied transceivers and 1M optical cable) with a SOtM dCBL-Cat7 cable to my Nucleus and a DH Labs Reunion Cat8 to my Lumin T2 streamer, Keces P8 linear power supply feeding a (to come) NUC and EtherREGEN switch with an external AfterDark OCXO clock., and opticalModule (5V/1A), AudioQuest Niagara 1000 power conditioner, ASI LiveLine loom (purchased directly from Franck Tchang when I lived in France), Less Loss Firewall for Speakers and Roon lifetime license with Tidal streaming.
