I bought the A30 5.8 combo from the Microsoft Store...
I will confirm...here..once and for all:
You DO NOT need the Turtle Beach chat cable to make the Mixamp 5.8 work with the PS4. Again, you do NOT need the chat cable. You do however, need the USB-3.5mm cable (comes with the 5.8) plugged into the PS4 usb port and the other end to the TX.
The Mixamp 5.8 receiver accepts both 3.5mm TRS and 3.5mm TRRS connectors. What this means, is that you can plug in a TRRS headset adapter like this: http://en-de.sennheiser.com/pcv-05 or a "Headset Buddy"
This would make nearly all 3.5mm x2 headsets work.
Edited by rc10mike - 2/23/14 at 3:35pm