That is true and that the subbass can't match the Solitaire P is also what the manufacturer told me(and probably him), so it was an obvious thing to take that as example for a difference. Both also emphasized that differences are VERY MINOR.You need to test the subbass qualities yourself, as I have the slight inclination that musicalhead had to find some difference in sound doesn't he, as he could not very well have written that both headphones more or less sound the same.
Because should both headphones sound the same, then why paying more for the Solitaire P, unless you maybe like the haptic touch of the materials used for the P more.
I am hyped to hear them myself and still root for the P-SE until I heard both, hope dies Last.
Edit: I talked to musicalhead some more, he told me that most differences are only noticeable in an A/B test, except for the subbass difference which is more obvious.