Different Volumes

[MparkG]

Just leaving this here;
Ive got this pretty program installed on my laptop and i wonder,
The right channel appears (and is) less loud than the left one:

Both Channels are equally loud when i connect some external playback device to an input.
Clearly its in the software.
As it turns out its pulseaudio, upmixing stereo sources to play on all channels except channel 4 (that would be the sub?).
This creates the inbalance of volume.
And to turn it off:
https://ubuntuforums.org/showthread.php?t=1561695
in etc/pulse/daemon.conf
set enable-remixing = no