I don't 'collapse' mine .. but the ability to 'spin' one side has been an appreciated feature here, especially for vocalists.

Also as 90 dB mentioned, if the M40's sound like something is 'off' (too much bass in his example) it likely is true.
To me they are pretty dang trustworthy/true and reliable.
For $100 I'd start with these.

The funny part is that the older 'f/s' designation means Field Serviceable, but I've never ever needed to, even after years of use.

/jcspro40; yeah I miss my AKG 240s too, but the ATH 40s are a nice thing to have in their place.
//I once traded with a forum member here; he got my M50 set and I got his M40 set .. both sides were happy afterwards. Dollar-wise I lost, but I guess it's all in how you see/hear things. To this day I think I won.

Last edited by rharv; 01/22/17 09:17 AM.
Make your sound your own!
.. I do not work here, but the benefits are still awesome