I just got a new Asus Xonar DG sound card, and whenever I change the EQ, I get these weird volume swell type things. It seems like whenever there's bass, the volume fades with it. Like for example, it almost seems like somebody turned the volume knob down and back up every bass drum hit. When I turn the EQ to default it goes away. Does anyone with this card experience the same thing? I know its the sound card and not the headphones, because I've tested 3 pairs.