So where does the 007mk2 fit into my current headphones collection? In general, I would say that if you prefer a more delicate and elegant sound, the 007mk2 is for you. If you prefer a creamier and fuller sound, the LCD-2 is for you. If you don’t need substantial deep bass and want a neutral sound with enough detail but not excessively bright, the HD650 would be for you. If you need a pair of sealed-cans for isolation, and want powerful bass with deep extension, enough brightness and detail but not fatiguing, and have a very modest budget, then the M50 is for you. At this point I do not recommend the Denon D7000 (or its younger siblings, the D5000 and D2000) unless you intend to use EQ to make them more acceptably neutral.
For all the endless hours I could spend on chasing after that elusive ideal pair of headphone or amp–reading reviews, forum debates, traveling to audition candidates in person, doing extensive comparison tests…etc, I could be spending that time and energy composing and recording new music, writing my novels and screenplays, working on new paintings, snuggling with the Mrs. and enjoying some movies, or just playing video games. What I have in my collection is good enough already, and I have learned a lot about headphones in the last few years during my journey to find the most ideal pair of headphones. It was never my intention to “collect” headphones, and in fact I don’t “collect” anything--I much rather be creating something. The only luxury pair of headphones I have is the Stax, and the rest all serve practical purposes. Between the 007mk2, LCD-2, HD650, and M50, I have all my bases covered–from audio production to leisurely listening. The RP-21 and DJ5000 are for guests in my studio who will be collaborating with me on recordings, and the Westone 3 is for when I’m traveling (although I plan to swap the W3 for an IEM that’s closer to my ideal sonic signature though, so I’m not totally done yet, but since I don’t travel all that much anymore, I’ve been putting it off).