Sonic Defender
Headphoneus Supremus
That's not a logical conclusion at all. Midrange and treble are a lot more important to SQ than bass, which is why so many audio systems can skimp on bass and still be highly regarded.
Having good bass alone is not enough to make any headphone listenable and certainly not enough to put a headphone on a par with other headphones with superior everything else. The fact that you only identified one user who thought the 560's bass was superior should also be food for thought. From everything I'm reading here the 560 is beaten and by a significant margin.
That's not what I meant at all; I guess I didn't make my point well. I was discussing the notion of a significantly better sounding headphone. If we were to for arguments sake divide the quality of sound reproduction into equal thirds, bass, midrange, treble, if we were to say that the 560 has slightly better bass, while the Ether was slightly better in the other two thirds, then you don't end up with a significantly better sounding headphone, just a modestly better sounding headphone.
Anyway I know that is a clumsy way of expressing my thoughts, but it is at least an effort. There is no way to apportion what aspect of sound reproduction accounts for what proportion of perceived sound quality as there is a great deal of subjectivity. Okay, so for the record I wasn't making such a grossly simplistic argument as that better bass equates to better sound.