FinalTricks :
So I have a pair of Astro A40s and I want to be able to use the mic on both my PC and my PS4. I have no idea is this is possible or not but say I use a headphone Y splitter on my Astro's and connect the headphones into the MixAmp Pro then split the mic so that I can connect it into my pc and to my PS4 using a 3.5mm to usb adapter? So is this possible or is this just wishful thinking?
Are you talking about splitter like this:
Link ?
From electronic point of view this isn't a very safe/best idea since port at one device can create a voltage that can possibly destroy port or even the other device, especially when both devices would be working at once. Personally i would just buy 2x mic jack male, 1 jack female and some kind of 2 line switch (for both signal and ground lines = 6 pin)
Example. The switch would short circuit the mic with one of the devices but never the devices itself.
Thats the only way i could find it cheap and easy to do.