You should be able to hear significant differences with the KGSSHV. Once upon a time, I used to use a pair of 007mk2 with a 006tA, then after moving to the KGSSHV, sound and texture was much more improved, with a certain sparkle to it, and pronounced/controlled bass that the 006tA was not able...

Matsushitas on DIY T2.

Not sure if this is still a relevant issue for recent hardware, but Japan uses XLR pin 2 for hot and pin 3 for cold, while some older XLR equipment in USA might still use pin 2 for cold and pin 3 for hot signal. You might run into some issues if you end up grounding the wrong signal when going...

Which tubes made more significant improvement to sound on the T2 when tube rolling? The input or output tubes?

Here's a spare unused 007 cable I have on hand. Wire leads look similar to what you posted.

You actually got me thinking and bring up a good point. Anyone ever seen 007MK2 with SZ2-0xxx or SZ3-0xxx? I googled around and it seems like everything that shows up is always >1000.

The Stax on demo at the Akihabara Yodobashi Camera store are all hooked up to Marantz SACD players. They all have USB ports on the front. I used to bring my own usb cable and audition via my phone's songs. They used to have the same equipment on demo in Shinjuku.. but it looks like they...

Looks like the numbers inside have designations for left and right sides as well.   By the way, the cushioned headband on the GH1 is the same one as that came with my transitional RS1/RS1e model.  Maybe they had leftover stock after moving onto the brown headbands..

  Just received the GH1's today as well.  These are night and day when compared against the RS1e drivers... the latter just sounding muffled and veiled--no competition.   Compared to my PS500s.. the GH1 are definitely brighter (but not 325 shrilly), vocals have more texture and definition...

very classy!

I have a pair of the Grado RS1i with the red 50mm drivers and with the new mahogany wood housing.  However, they are still terminated with the 1/4 inch jack.  I wonder if there are several different combinations of these transitioning headphones.

Yup.  They came out at around the tail end of production of the chrome SR325IS and chrome PS1000.  I recall reading somewhere about QC and yield issues with the chrome..

I guess both cases are valid and combination of G-Cush on the PS500 as well as more efficient drivers on the RS1 "Red"  probably amplified the differences.  I guess time to swap back out the G-Cush for more a-b'ing!  I probably put about 5-7 hours on the RS1 "Red" now (my earlobes hurt) and it's...

I recently acquired a pair of Grado RS1i's with the new RS1e red drivers sold by the previous owner who put barely 5 hours on the cans and decided to want to switch to IEMs.  Apparently he bought these headphones approximately 5 months ago (~Feb), so these may have been very early RS1e drivers...