ParkflyersRCNope, it's a very good DAC for the money. IMHO, it's a better (detail) DAC than ifi nano BL, almost same level with modi multibit interm of sound quality (modi multi is slightly colder and D50 is warmer)
TaK_TranI love treble, which headphone you have? I ordered EL8 titanium's, they have a good amount of treble, not too much.. I hope I'll have lot of detail or little sparkling in the treble, because I even have the Atom amp now that seems bass-centric (not too much treble), with the Sony pha-3 dac, so i'm waiting the Topping D50 and El8 TI :)