My Mixamp Pro 2011 drives my Q701. Maybe a problem with the amp? I can't see Astro making it significantly weaker than the previous versions.
Been reading head fi and it seems to be true.
The new mixamp is overall worse in terms of sound. It's really weak as it's powered by USB and not a power socket or batteries. So it's getting it's power from the PS4's usb and it uses that for both power and audio chat now not just audio.
I have only tested 1 game so far. I'll try battlefield 4 hopefully it's the game.
I don't think it's a defective mixamp from what i've read on head fi the newer ones aren't as good in the sound department due to them cleaning up the number of wires/connectivity.
it's still a very good product it just doesn't give me the same sensation of surround sound as it's older sibling or give me as much volume either.
i can crank it to full and it should be deafening but it's bearable. it's as if they don't have enough juice being fed to them which is compromising the sound a little.
I'll try my DT770's and momentums (never use that for gaming but it's my portable can so it must be easy to drive) and see if they are any different.
Might try my Q701's as well if I can be bothered unboxing them.
