I think this really speaks to how much of a factor geometry and scale of the headphone are in sound quality.Ok so I'm probably not going to help you at all here, Yes, these are more accurate and tonally correct than the $799 Focal Bathys, $699 B&W PX8, and $599 M&D MW75. I haven't heard the $1000 ML 5909 in a while, but from memory, these are up there with those but without the extra sizzle in the highs. These are seriously REALLY good for $329, and the noise filtering on the mic is really great for gaming or conference calls. I'm LOVING these so far.
Closed backs are already limited compared to open, but then you add the portability constraint which demands cup size is small and it becomes even more difficult. The Maxwell are big bois, kind of similar size of Elegia right?
Id like to hear the engineer's thoughts on this, but after comparing Bathys to Celestee/Elegia/Stellia I really feel it's a serious factor. Bathys has a really similar driver to the other focal closed headphones, but about one third the volume in the cup, and its filled with electronics too. That limitation surely explains the huge divide in sound between a Bathys and a Celestee, and potentially between the much cheaper Maxwell and more expensive closed Bt headphones too.