It is your hearing, and you know best on what you like/dislike.
I had the Roxanne 2 before upgrading to Layla 2. Both are superb IEMs, and much better than Noble K10U or Katana that I was trying out extensively at the audio store to my sound preference.
Roxanne 2 has really solid bass, much better than Noble IEMs, even if you have not tuned the bass knob up. It is slightly over empowering for some music, and Layla 2 is a better step up in this area. Still solid bass, but smoother and with better balance with superb details and imaging.
It is picky with the source though, as it really projects the true sound quality of the DAPs. I had used it with different DAP (owned DX90, ZX2, Plenue, Calyx M, Opus#1, QP1R, Mojo, etc., and tried audition with WM1A, WM1Z) and found Calyx M the best sound quality which is really musical with nice imaging, engaging and smooth non-fatigue music.