I'm in for the latter, one of the few to get the honor of my ignore list here. I can only take a certain amount of inane ramblings...
Now some impressions, system has changed a bit since last time as I got a Denafrips Terminator DAC plus it is now fed by a Kimber KS-2436 silver USB cable...not that it matters and I only got it to prove that point but it's there. Amp is a stock Carbon which does look rather nice with the black aluminum Stax plug on these.
They are certainly even more inefficient than the 007's but the Carbon drives them with ease. In fact I'm not even at 12 o'clock so I could easily drive them into arc'ing if I wanted to pull a Ray on this. Other aspects are just fine though, even though I can't stand the earpads the fit is just fine and the headband might work for those with silly large heads. The cutouts in the leather might bother those though without a full head of hair. The drivers are dead silent with no music playing so no dust migration issues.
Anyway, I first tried them bone stock and initial impressions were ok. Not great but I first thought "at least they don't do anything seriously wrong", I just pressed random on the playlist and some Thompson Twins came up which was a lucky stroke for them. As soon as something else came up I noticed they just sound odd, the top end is both muffled and peaky at the same time, the midrange sounds distant and hollow and the bass has a very pronounced resonant frequency but limited extension. The soundstage is vague and diffused compared to the better units but far from as bad as say the HE90's.
Next step was to remove those foam pads from inside the drivers. Now they are 5mm and not 4mm as I stated before (eyeballing while lifting up one end vs. actually measuring) and super dense. This is nothing like the open cell stuff Stax used in most models from 1977, that presents limited to no restriction on the sound while this foam... it barely lets any light through it so impact on the sound is huge. I'm a bit baffled why anybody would add this as removing it does wonders to the sound.
Now where to start, everything is improved and much of the weird sound is gone. The top end is a still peaky and uneven (so much so that I need to turn down the volume often) but far more open. Same goes for the bass, that annoying "thump" is all but gone and the response is flatter and more natural. Extension is still limited compared a properly setup set of 007's but perfectly adequate. There is some of the same uneven bass response as the 009's and 009S's as they have problems with the same test tracks but I can live with it. Now for the all important midrange, yeah you guessed it, more open and "there" right in front of you. Now the soundstage is a bit lost and lacks the layering and depth of the 007's but compared to most out there, perfectly fine. There is still some reverb clearly audible but swapping out the pads should take care of that but we will know for sure soon.
So the bottom line is, if you own one of these, remove the fucking foam!! This is a discussion we've been having for decades with the HD580 and all the successors so yeah... adding damping like that is about as retarded as the whole sorbothane BS. Don't try to tune electrostatics like this, it will never work. Change the earpads, change the distance of the drivers to the ears, change how the drivers are built but never, ever throw some foam on there and think you did a good job. Fucking pathetic.... Anyway, sorry for the rant but this bothers me so much as it is just so lazy. Now next step will be to swap out the earpads and I want to stick with something anybody can get so none of my custom made pads are eligible. This might take a while as I need to take stock and see what I currently have...