It depends of the content you feed them and equing.... if you listen to them straight of an ipod without any equing the bass is there but it is very light and with little pressure. In this case if the songs are of low quality the bass sounds really bad (loose). Now if you eq them.... I use for example the rock or the eletronica eq on my ipod touch since i listen to edm and believe methe bass is there. They are not bass mosnters like my k518 or the Cal! but to be honest with good eq they have just the right amount of bass and most important of all it is tight and beautifully controled.
and you also get more pressure on the sound as well... They are amazing but to be honest if you listen to them with a flat eq the highs are just to much and makes the overall presentation of the sound too harsh, loose, and tiny sounding. They are very eq friendly and that what makes them so great. With just a bit of tuning you can make them sound amazing and believe me if you listen to them on flat again after equing them according to your taste you will see how bad they sound without the eq.
Try to listen to something like rage against the machine or vega by pryda with a flat eq on any source...
You will see why people complain and why equing makes wonders on the v6...
Mine are exactly like yours. Got the clear tape on the cord bag as well.
The only thing that bugged me so for in terms of built quality is that begining of the coiled cord (jack side) looks like a pig's tail while the other side ends in a perfectly round coil... I can live with that though....
The other thing is that my left pleather earpad came a little loose on one of the sides and with just a gentle slide you can easily lift that side of the pad.... but i am not even bothering to replace them because i can probably have to pay for the transportation fees and that is halfway to buy a set of dt250 velour pads...
Edit:
Pig tailed coil on the right (jack side)
Slightly loose pad (only on this side, the rest of the pad fits well so i want to believe it will not get completely loose soon)...