When I'm listening to music (iTunes) during the day, I'd like to have sound all around me. So I've created a multi-output device out of my main audio interface (Propellerhead Balance) and my portable Bluetooth speaker (MagicBox II). Unfortunately there is a significant sync issue between the two. I'm not surprised that the audio signal would be delayed slightly with Bluetooth, but then I had hoped that the hardware interface would match the delay to compensate. This is clearly not the case. I have tried enabling drift compensation but it made no difference at all.
Is there a way to make this setup work with both output devices in sync?