FIXED IT!
Thanks to this guy:
http://www.anomalousaperture.com/2008/10/xonar-d2x-really-low-anaologue-sound-output-fix/
Stupid dodgy floppy drive power plastic bits. I pushed the white plastic bit back, reconnected and now I have full volume on analogue.
Thanks for all your help and suggestions guys.
Thanks to this guy:
http://www.anomalousaperture.com/2008/10/xonar-d2x-really-low-anaologue-sound-output-fix/
Stupid dodgy floppy drive power plastic bits. I pushed the white plastic bit back, reconnected and now I have full volume on analogue.

Thanks for all your help and suggestions guys.