Hi Everyone. Long time lurker of this board and first time poster. I am currently mixing on a pair of ATH M50X (I know mixing on headphones but I am in a small apartment so I don't have a choice). I love the headphones but I find that my mixes often translate a little muddy/boomy on other playback devices which I think is a symptom of the ATH having a big bottom end which kind of makes everything sound good down there no matter if it actually is or not. So my question is what pair of headphones can I mix in conjunction with the M50 that will allow me to hear the potential for mud / mid bass issues? Looking to keep it under $300 if possible. Thanks for all your help!