I used
dum dum sealing compound to blob-mod my MS2is:
Driver out -
8074 is scratched on the back of the drivers.
Not all MS2i drivers are the same - these drivers were fitted by Grado 7 months ago to replace the original drivers (3 years from new and all Grattled-out lol) and are noticeably darker in tone and smoother of refinement than the originals. The original drivers had the nickel plate finish.
I noticed a 2 y/o MS2i in the FS forum recently that had this black driver with the 180% silver mark around the rear face, all the others I have seen photographed have the nickel drivers.
The mod:
Edit for more impressions: I've come back to this as my head cold is wearing off and I'm hearing stuff I didn't notice before.
Subjectively they sound noticeably quieter/less sensitive than before, a sure sign of improved resonance control. They certainly sound more neutral than before - which exposes more detail - and weirdly the bass sounds even heavier despite being more controlled in the upper registers. The bass "overhang" has been cleaned up very nicely; stock they tended to carry a little
too much energy around the
waist on occasion - not a bloat but more of a too-much-air-is-moving sensation.
Source: ALAC/iTunes/usb asio.de/Headroom Micro DAC/PF modded X-Can V2.
For background; whilst these were being repaired I ordered up both MS-1s (for the MS-1000 modding project) and MS-Pros: once these got back and got burned in I sold the MS-Pros as (with the exception of my vinyl rig which I hardly ever listen to on headphones but sounded
magic with the MS-Pros) I prefer the sound of these MS2is.