unless one installs the community made a2dp (that the high quality stereo audio profile for bluetooth) package, one only gets hsp, specifically there for low power handsfree vocal range audio.

thats the thing about bluetooth, its not a single entity.

there are multiple profiles, each doing a specific thing, and if a specific profile is missing, one cant make use of a feature or set of features.

http://en.wikipedia.org/wiki/Bluetooth_profile