Terrible audio quality from headset, not sure it's normal

[gab_th]

I bought a KMD Pro Gamer Headset for Xbox 360, which I'm using on a PC, plugged to my 360 wired controller. I do have audio playback and recording, but the sound quality is very very bad. I'm not one of those people that are highly attuned to sound quality, nor am I a big fan of great sound, but the quality I'm getting from these headphones is unacceptable, even for me, which makes me wonder if it's normal. I've checked for drivers, and they're up to date. I've also tried turning the various audio enhancement options on and off and it hasn't worked. Any ideas? Or are they just this crappy? They cost me about $20 USD, if you're wondering.

 

[gab_th]

I've found the problem: the headset is set to 16 bit 8000 Hz (telephone quality), but I don't get the option to change it. There must be a way, right?