24-May-2021, 10:00
I do not know how Bluetooth works. When I had a Devialet amp it worked like this. I only used the start up/wake up setting as I only had one source. As @kantblue points out there is a "security" setting for volume in the Phantom web interface. Not ideal but might help in the OP's situation.
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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