I've owned the Q40 for two years and loved them, after a pad swap and cable swap.. Great overall sound with nice tight bass, it was the headphone that got me started on the basshead club thread. After hearing the Q40 was being discontinued we all wondered what was next..........and here is the successor.
Smaller in size than the pictures on the M Audio website led me to believe, these are actually quite compact, with a well padded headband and GREAT stock pads that are over ear. They hinge and rotate much like a DJ headphone (the Senn HD7/8 come to mind) and really are very comfy. I've been wearing them for 45 minutes and can tell there will be no issues like the stock Q40 had. Here's a comparison to the TH900 for a size comparison.
Comes with two cables. One clearly meant for portable use, it's about 3' long and the second is about 6' long with a bit of a coil at the end. Both interlock at the earcup and get this, left or right cup can be used! Nice feature. Not sure if the V-Moda audio only cable, a popular swap, can be used. I'll check later and report back.
Sound is crisp and clear and more neutral than the Q40. The burning question - can it thump? Yes it can when fed by an amp and it handles it nicely. First test was out of my vintage Pioneer Spec system. Next will be my portable setup consisting of an iPod Classic feeding an Arrow 3G and later I'll add a Digizoid ZO to the chain double amped to really test the bass handling.
More to come but for now, for the price I paid, major score.