ASUS ROG Vulcan ANC Headset Review @ OCC
 

In the end it didn't end up being the headphones I disliked so much, it was the headphone's main feature: the active noise canceling. The uncanny, brain exploding feel when turning on the ANC switch was something that just didn't go away, nor was it something I could just "get used to." Every time it was on, I felt like either my head was in a vice or that I was going up in elevation and couldn't get my ears to pop. That wasn't the only issue with the ANC being on either. The quality of sound was also significantly reduced when the ANC was on. Music lost its bass, sounding tin can-ish, and games actually were a bit harder to hear what was happening around you – I just kept getting snuck up on and killed. I'm not exactly sure why anyone would ever want to use the ANC feature. With the sound quality in the bucket the switch will never be on. Get rid of the ANC altogether and this headset isn't too bad (except for the cost). It's a nice thought, but I'd rather have sound quality over canceling out my case fans.

http://www.overclockersclub.com/revi...us_rog_vulcan/