Whats the difference in sound quality between a 40mm driver and a 50mm driver in studio headphones?

Question

the studio headphones i am looking at claim to have the same frequency range response. Both have neodymium magnets, but 40mm is cheaper. Am i sacrificing sound quality if i get the 40mm as opposed to the 50mm?

Answer 1

The 50mm drivers will have more bass than the 40mm.  Just as a 15 inch speaker will give you more bass than a 12 inch speaker all else being equal.

I owned Sony MDR-7506 headphones (40mm) for years and then upgraded to the MDR-7509 (50mm) and the difference was very noticeable.

These new 50 mm studio headphones have been getting great reviews:

http://www.musiciansfriend.com/product/A...