I appreciate you testing that out@Ciggavelli I tested the Song now several times with both the Solitaire P and Empyrean for reference.
It seems fine to me.
On the Empyrean the Bass is more in your face, as it is usually the case.
On the Solitaire P it's more spacious and the Bass feels like from a good subwoofer (except that you can't feel it), a powerful Bass Fundament without overpowering the rest (while it it slightly dominating On the Empyrean, but the Empyrean has elevated Bass anyways)
From 1:30-2:00 the bass line stops mostly, I guess this is in the Song like that.
The Bass line starting at 2:00 is mighty impressive On the Solitaire, well textured authorative and strong.
all my testing has been on my Octave V16.
While the Empyrean has more quantity as expected, it was cery obvious and strong Bass On the Solitaire as well.(especially after 2 minutes, loving that part)
Perhaps there is something wrong with my Ps or some component in my chain. I will do further testing. Thanks again!