Am a new user, just running the 30 day free trial of Premium.
Have read the troubleshooting posts, tried uninstall (but could not find the referenced folder anywhere on device following uninstall), reinstalled, but still the Bass Boost slider on the Audio Effects screen is greyed out.
When I first installed spotify it was definitely available and could be adjusted.
Any advice very gratefully received.
Nexus 7 32GB LTE version, 25 GB free. Android 4.3.1