Leaving the HD 58x driver exposed like that invites in the dust & may probably damage it, so it's not recommended.
If you want to have them without the stock foam you may glue some other specific foams using double-sided tape according to mod guides on the diyaudioheaven for example. Such foam will alter the sound frequency response a bit (maybe even in desirable way) depending on which one you use. More detail in the guide.
Though it's tiny, it manages to power even high ohm headsets with amazing accuracy. It works great with the drop usb-c to usb-c and my Phillips shp-9600. Soon enough I'll be using the Akoustyx...
I have an external amplifier with no integrated DAC and I only have an xduo xa10 as a dac/amp can I use the xduo xa10 as a dac only with an external amplifier?
So I bought the HD6xx a few weeks back and when I finally got the packages i got some Noir 99. ever happened to any of u guys and how did it get resolved