Evshrug, with the astro mixamp, I have the base which is at the entertainment center which the optical plugs into. Then I have the volume/chat control receiver that sits in my lap while I play. So at the moment, I dont really have a cord that runs the length of the floor.
I will check my TV to check its output, but as you all have stated, I doubt it sends 5.1
I like the sound of the marantz receiver. Can you use the headphones of your choice or only the Marantz?
It's a centerpiece for your home theater... everything connects to it, and it sends video to your TV and sound to speakers or headphones. I don't think Marantz even makes headphones? It's not a gaming specific device, though with DH it has all the surround capability of gaming devices. You can even manually boost or cut the bass and treble (maybe even the mids, my old receiver does that, as well as channel balance). The only thing you'd lose, is the Mixamp's nice integration of chat (you play SP mostly anyway, right?), and of course you'd have the headphone wire run the length of the floor while you use it. When I had an apartment, I kept my headphone on a small stand (with the wire neatly coiled up) next to the receiver when I wasn't using it, never bothered me... was nice to have my gear on display, and all the other wires neatly tucked away behind. My beefy/high quality headphone wires are sexier than standard interconnects anyway ;)
I didn't realize you had the wireless Mixamp. I'd definitely recommend trying to plug it directly into a console first (with 5.1 Dolby selected in the console's settings menu) to see if you had been getting surround sound.
Edited by Evshrug - 2/20/13 at 9:25am