I'm super excited. I finally pulled the trigger on a Mixamp 5.8 on eBay. Couldn't duplicate the $40, but I got one for $50 so I'm happy. Now I'm wondering what else I need, including a mic solution, to make this work with my Q701s, X-Box One and PS4 (in the future). I know I need the X-Box One chat adapter and I haven't purchased my amp yet (going with FiiO E11 or E12), but I'm not sure what else I need to make this work. Thanks in advance for any response.
Congrats, that's a nice deal. I have a Mixamp 5.8, Xbox One, Q701 and E11 for my setup as well. You won't always need the E11, only if you're chatting.
It looks like you have almost everything you need. Seem to be missing a 2.5mm cable for connecting the receiver to your controller. And you'll need a short 3.5mm cable to daisy chain your E11 in.
For a mic, I just use the Neewer/HDE mics from Amazon. They're like $6 for a pack of 5. It's a coin flip if they'll be working, but you can usually get 2-4 good ones out of a pack of 5. If you want something more reliable, there are things like the Modmic, but they cost WAY more.