Drop in sound quality/loudness

[eibet]

Did you try playing with a different source? Could be your original source has an issue with output gain?

I will try that once I get home.
I noticed this when playing through Spotify Connect which is my usual source of music with the Phantoms.

Another thing I noticed was that the music originally sounded quite high in the beginning but quickly (but not that noticable) faded down to a lower sound pressure level.
Hard to explain what it sounded like. This could of course be due to the SAM or DSP feeling to much pressure in the low frequencies, but like I said, this has not happened before to my knowledge.