igorneumann
100+ Head-Fier
To me the ZSR has an enjoyable amount of bass, midrange, treble, air and soundstage with decent separation and imaging. Bass response for each person will vary based on how one's ear covers the ports at the base of the earphone and yes, bass response will effect the rest of the presentation. In addition, the ZSR's 4khz dip, while odd, contributes to what I call the ZSR's version of "smooth and airy".
Again, the ZSR may not be as technically capable as some of the newer releases but it still gets lots of playtime from me.
I do have the ZSR, the vent hole info explains why do I hear so much more bass than the response curves indicate... guess any comparison would be useless then.
What I dont have, but want to buy even knowing Ill not use, is the ZS7.