Your statement is a bit surprising @Fragoulisnaval The old and new (Pro) Experts are working fine. If you use Roon, AIR is working. For some, Devialet's AIR is also working. I had no problems with my 250 before and have no problems after it was upgraded to Pro. In general we go after sound quality and for many of us Pro is better. If you are thinking about problems related to the new CI board I can agree, but the OP did not mention CI, just Pro.
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Devialetless!
Roon, ROCK/Audiolense XO/Music on NAS/EtherRegen/RoPieee/USPCB/ISORegen/USPCB/Sound Devices USBPre2/Tannoy GOLD 8
250 Pro CI, MicroRendu(1.4), Mutec MC-3+USB
Devialetless!
Roon, ROCK/Audiolense XO/Music on NAS/EtherRegen/RoPieee/USPCB/ISORegen/USPCB/Sound Devices USBPre2/Tannoy GOLD 8
250 Pro CI, MicroRendu(1.4), Mutec MC-3+USB