Any suggestions for closed back noise isolating traveling headphones closest to HD 600
Given that Sennheiser HD 600 are my favorite headphones, sound wise, would someone please suggest a "similar" quality traveling headphone for me ?:
I understand that achieving similar sonic characteristic like the open back HD 600, would be difficult with closed back (a requirement for avoiding leaking sound from disturbing other passengers on an airplane).
I've auditioned thus far the PSB M4U 2, Momentum over the ears, B & W P5, P7, and read about KEF M500, V-Moda -100, and others. The reviews on Amazon.com, are very critical on the built quality of many of these headphones, but I am not sure if these are authentic reviews or "maliciously", written by competitors ? Also in the audition room locally at the Good Guys store, the setup was mediocre in terms of the signal splitters for the various headphones, such that noisy hiss sound leaked through many of them, and it is difficult in a short listening time to get the full impact sometimes.
Thanks in advanced,