I'm both stupid and new to this, so excuse any "interesting" questions.
My Audeze Mobius broke four times, they're more tape than headset right now and I'm ready to move on (still deciding between HE400i 2020, Sundara, 1060C[open mod], or M570 - if you have any recommendation between these or any other open planars in the 150-350€ range feel free to shoot). I want a setup where I can switch between my PC and PS5 without unplugging & plugging cables, fortunately the Hel2 seems like the perfect solution with its automatic UAC1 mode when plugged onto a PS5 and the USB/optical input switch up front. I have the following doubts and things I want to confirm:
1) Does the UAC1 format only affect the USB port (connected to PS5), or does it somehow screw with any other part of the unit in some way? (considering the optical plug will be connected to my PC)
2) How does the Optical port work? Will it only input PC sound to the amp (I'd have to connect the mic directly to the PC for calls) or does it also transfer mic info to the PC with the mic connected to Hel2?
3) Are there any shenanigans I can do with the preamp output other than its intended use? For example connecting my Dualsense to it while the switch is on optical (PC), or connecting it to PC while the switch in on USB (PS5) to hear both sources at the same time or some such heresy.
4) Any idea if Hel2 will have European stock before 2027?
Thanks in advance.