I've owned the X41's for a few years by TB and thought they sounded great until I bought and since returned the X1's, ATH-A700x's, A40's and 50's. I'm currently rolling with the E12 Monte Blanc, MixAmp Pro and the DT770 Pros and absolutely love the setup, but to be honest, I'm tired of all the wires strewn out all over my floor and want to go wireless. I would have kept the A50's had both sets not friggen malfunctioned on me. Right now, the 800's are exactly what I'm looking for. I'm intrigued by the DTS Headphone X format and the noise cancellation feature is a big plus. I'm not expecting the 800s to rival any of the earlier mentioned cans and I certainly don't have the knowledge or the experience to critique sound like most here but hell, if they sound good to me I'll likely keep them, if not, then back they go.