After doing some research, it appears that the HD-800 is going to get very costly ($2000+) to make them sound great. For that kind of money, I'd rather buy a pair of speakers such as Adam S2X's. I want a pair of headphones that: - blow away the Shure SE535 - amazing soundstage - amazing details in the bass, mid and highs - not difficult to drive. - very comfortable to wear. - Excellent quality bass ( clean, tight and responsive bass ) - Can be open or closed, because on the go I'll be using the Shure SE535. What headphones should I buy?