Thank you, Lin0003! Super information for me) Soundstage is very important to me, so i think i will be happy with 3X. Mentors are not in my price range (and price+brain range too:)) Customs are not for me now, my tastes can change.
Teclast X30SE + Ibasso T3 = very nice combo.
X30SE has total 20GB of flacs and even without amp it has a good opened, clear and detailed sound.
Also built quality is on par with Cowons for example. Cheap and perfect. With amp, SQ is on par with HSA Studio...