Just got my auzentech X-Fi Forte installed. Holy fuckin balls the headphone amp is insane!! Sound quality is marginally better than my Audigy 2ZS at my normal volumes and thru the speakers (which is a testament to how good the Audigy 2ZS really was), but really shines when you push your cans. I'm amazed the difference in the headphones. My RE0's never sounded this good. It would've easily taken a $200 headphone amp to match this.