https://www.apkmirror.com/apk/max-mp/poweramp/poweramp-v3-build-881-uni-release/poweramp-music-player-v3-build-881-uni-android-apk-download/
Just downloaded the Poweramp Music Player v3-build-881-uni (arm64-v8a + arm-v7a) (nodpi) (Android 5.0+) APK from @APKMirror