Volume issues

Poweramp uses Direct Volume Control (DVC) by default on 2.3+ mid-to-high end devices. On stock ROMs this produces much better audio output due to the extended dynamic range, this especially helps to get extra powerful bass and also maximum loudness of Poweramp is not limited by preamp and is similar to stock player.

Still, some (custom) ROMs, while supporting DVC, can fail with it, causing volume issues.

In this case please try to disable Direct Volume Control in Poweramp Settings => Audio Engine => Advanced Tweaks.

Feedback and Knowledge Base