Just received the Ace.  Nice headphones, but the fact that they cannot play simultaneously with the other speakers in my large Sonos system is unfortunate.  I have quiet comfort headphones, which are stellar.  The reason I bought the Ace was to be able to play the drums to Spotify or Drumeo with the headphones on and allow that same music to be played throughout the house.  Any chance this can be a software fix? If not, too bad as these are just pair of bluetooth cans that you can use in bed to watch television.