To start off I'll mention that i am beyond satisfied with my current setup which is a set of audio-technica ath-m50 and brainwavz m2 IEMs.  I couldn't be happier.   The question i have....   Which IEM would you recommend that is comparible to the M2's (warm mids/bassy/overall sound...

Just curious....  How much of a difference will there be between the two and will I be pretty impressed?  I've done quite a bit of research on phones and like everything I'm seeing about the M2's, however never been exposed to anything but those damn earbuds.  To me they have crappy sound...