i got mine, the thing look new. i like the built quality and how its fold. i notice that the earpads and the headband is not comfortable as the ath-m30 ($30 cheaper, as oppose to v6 $80 original price). the two headphones design are much the same. but the ath-m30 is more flimsy, haedband doesnt clamp as hard so isolation not as good, and cant fold, but more comfortable.
the sound is not what i thought, i didnt like it at all.
the headphone is missing in the lowmidrange and high bass area. this is one area the ath-m30 beat it. the bass is very powerful, but thats the problem, its not the type of bass i like, its the low bass, but it sound unreal and pump so hard, i get fatigue from the bass (wth? this have never happen, i have a basshead, how is it even possible). the vocal (mids) is clear, but i wish its more protruding.
when you take off the earpads, you will see the driver being protect by a metal fench, very protective, but i think it is the reason for the very bright treble. brighter than even the grado sr60. the ath-m30 treble is extended like it but not to that point.
the sony v6 beat the ath-m30 in the details area. but the too much of bass and too much treble cause fatiguing, in addition to the analytical sound, make music listening just not enjoyable. but i found it is very good for playing game on computer or watching movie.
the housing for the driver of the ath-m30 and sony v6 is different. for the ath-m30 its bigger and hollow, so that why it gets the recessed laid back sound. but i solved that problem by inserting 35% of asus' motherboard foam in the bottom part. result was no more recessness, bass finally show up, very punchy and clear. the sound improvement was amazing comparing to the un-mod version which i even prefered my px200.
unfortunately i sold it to my friend for $30. my plan is to somehow borrow his ath-m30 and switch its driver with my sony v6, and the earpads too. that will result in a kickass portable isolating music headphone under $100. he'll never know even if the sound change. hopefully i could get a chance to do this.
i also think the cable for the ath-m30 is better quality than the v6, not sure about the 7506.