The problem has always been their lack of availability in the states. Philips has made the X1s difficult to get a hold of in the US. As a result there has been a lack of impressions and comparisons against other headphones floating around. I searched a lot for comparisons on the X1 vs the Anniversary and Q701, but didn't find much substantial info. I'm going to change that though.
I do think these are a nearly perfect fit for MLE's preferences in a headphone. MLE, you know I don't BS and I've never steered you wrong before have I? I usually shy away from the "fun" sound, but the X1s do it right - and it made my decision to keep them effortless.
For gaming, I think these will be one of the highest overall scoring headphones he's ever reviewed. Fun, competitive, and comfort are all simultaneously among the best I've heard.
Edited by chicolom - 6/1/13 at 2:43pm