First off, with my third post in this thread, it was great hanging out at a mini-meet and listening to everyones stuff. Very fun indeed.
some impressions to follow:
I didnt spend much time with the Grados or stax's. I did briefly listen to the headamp KGSS/O2, and it did sound awesome as anyone would guess. The Grado HP2/Melos synergy was running in full effect, and the spy VS spy comparisons of alll of the grado RS-1's and RS-2, and the like were also cool although I did not partake as heavily as others
I did enjoy the comparisons of the various CLOSED headphones that were present. the sony R-10, Denon D-5000 (DIY markl mod) Denon D-2000, ATH w-5000, and JVD DX-1000 (I think thats the name - the REALLY big ones dave is wearing...)
For pitching brother VS brother we used the headamp gilmore thingy
It drove both (at the same time!) with authority, and control. The D5k with DIY markL mod had a little less bass than the d2k, but FAR better control of it. The highs on both were close. Dave can give better impressions of the differences as I lent him the D5000, holding his W5000 ransom
For the R10 DX-1000 W5000 shootout, things got VERY different indeed. I used the R10 as the reference because its worth more than my car and the xiangh-sheng 708b (a note on the amp later.) The DX-1000 had way more bass than the other 2, but held VERY good control over it. The highs were nice and sweeet. This headphone is more like a STOCK D5k for bass quantity but with the control of the moded D5k OR R10. The bass is quite prominent, but not lacking in quality. The bass impact here was also impressive with a kick drum giving a more realistic impact to my gourd. comfort factor was VERY high.
The W5000 held the bass MUCH closer to the R10, with the highs ever so slightly tipped up. The overall presentation was VERY smooth, without the harshness that often comes from slightly forwards highs. comfort factor: also VERY high. im going to listen more as I have them now.
A word or 2 the amp (xiang sheng 708b). first off, it was made with a linear volume control rather than a audio one. This is a stupid penny pinching tactic. At least its easy to exchange it for a proper one (I just dont have a spare) and I would recommend anyone with the amp to do so (or have a friend) otherwise I like the amp a decent bit. I think everyone thought I was crazy warning them about being careful with the knob, but the difference between 7'oclock and 8'ocklock is about as much as 7 to 10 on the other amps here. My other amazement here was with the output cap size and how it DIDNT have much effect at all on bass. The amp has VERY small output caps, which by most guesses would cause an obvious loss of bass in the low impedance headphones. This was not the case at all playing the deeeeep organ notes on saint-saens symphony #3, which dave has the deepest copy I have ever heard. with all of the low impedance headphones used the bass was full and powerful giving a solid skull-shaking performance when the organ hit.
edited/added:
I did not bring the Supra, although i packed my tubes. I had planned to but decided to take the R10 instead.