Bought an Zero 09 with usb for about a moth ago..
I got pop sounds after some time (10 hours), headset was then Sennheiser Hd 497. ( OPA 627 dual )
Now i bought genuine LT1361, ( single). Plugged it in, and the sound was great for about 1 hour, and now i got popping sounds all time listening to music.. Now my headset is upgraded to Bowers & Wilkins P5.
I dont know what to to with this.. I have tried optical as source too, but it is just the same popping sounds.
Does someone know? :/