That purification system would be nice, I am sure...
Sorry you M2s are not working out, and IMO, this is really phenomenal.
First, you got peeps like me that have NO problems, and the fact, that Sennheiser has sold out, and peeps are standing in line to chunk the full $500 for these. Yet, people are having problems.
IMO, in order for the above to happen, there must have been some defective units that were sold. to some unlucky buyers. And some of the buyers who return for another one, got another defective unit. That is the only way I can explain this phenomena!! People are not going to spend $500 for a product that doesn't work. A product that doesn't work, would not sell out, and create a long back order..Just my observation..
I will admit, that my opinions were mostly around the SQ of the M2s, which almost everyone agrees is real good. So, the satisfied people most likely are not subject to the interference areas like others, hence the praise for these headphones..
Just trying to find a reason how some people can return 3 or 4 times and experience a problem each time, where others are breaking their necks to pay $500 for these headphones.. Something is really wrong with that picture..