I bought a pair of rosewood cups from Turbulent Labs (batch 004) then found the same exact cups are available for 20 dollars less from Rholupat http://www.rholupat.com/products?page=1 in fact they come in the same exact box which makes me wonder if Turbulent Labs aren't sourcing their cups from him and just marking them up..?
either way next pair of wooden cups I need I'll be buying from Rhoulpat because I refuse to wait nearly three months again (and pay extra) . Rholupat also sell beautiful aluminum gimbals,rodblocks and leather headbands all for far less than Turbulent Labs.just thought i'd pass this info on to other Grado fans wanting to mod their headphones.I used my batch 004 rosewood cups for a pair of Symphones Magnum V6 and they sound incredible far better than my SR60i or SR80i though not quite as great as my PS500e (but not far behind in many respects either and with far more bass ,zero sibilance (without sacrificing treble) and beautiful midrange, they aren't as detailed resolving or spacious as the PS500e but then again I built them for less than half of what i paid for the PS500e) I can't wait to build a pair of V7's when I have the means to do so. http://symphones.com/
I also ordered from Rhoulpat but the gimbals and rodblocks are out of stock and he has no idea on when they will be available. I got my cups from Turbulent in 2 weeks, which I though was quite fast and I remember the first ones came in about 2 weeks also, didn't pay any extra for faster shipping either.
Have you done any mods to the cups, like dyanmat or sorbothane on the back of the driver?