Okay, i'm a DIE HARD fan of Final Audio Design. Once the sound tuning go under your skin (eardrum to be more specific) you can became addicted and never wanna go back to over coloured sounding iem. Soften up clarity that do not feel bass anemic, too bright or unbalanced: were into maestro tuning with E serie. Good amping help them come even more alive. I just review them here, as well as on headfi. https://nobsaudiophile.wordpress.co...n-balance-of-seductive-and-tender-musicality/ A keeper, and long listening session partner.