I was able to improve the volume curve a bit. Available in the next firmware.
Will your fix be already implemented in the 1.1.1 Public Beta, that is out just now? I have a duo gig with a turntable player next week where I would be happy if I could already use your fix. But I don't see it mentioned in the description of 1.1.1. Beta and if it is not yet included I would rather wait than playing a gig with a Beta version.