dharmasteve
Headphoneus Supremus
The Xduoo X3 does not particularly need amping to me, it sounds great just using the Headphone Out. But the line out is really good. My Fiio e11 Kilimanjaro version 1, does tighten and slightly improve the sound. Although the X3 has really good slam and impact (the Fiio X1 and X3 2nd gen are quite thin in comparison), the E11 is a super little guy and definitely adds more clarity. I have recently acquired a DAP which holds up well against the X3....the Onn X5. Big surprise.