Its my first post here, although I'm watching you for long while. First I would like to thank you for all your effort to improve this headphones. Year ago I was planning to buy second hand LCD2 but I bought t20rp instead and a piece of wood:) recently I finished my wooden enclosure and actually made all parts beside drivers by myself (enclosure, headband, cable and pads) so I'm not sure if I can post pictures on this thread, but I really would like to if you wont mind. I have few mods inside that I didn't notice here like beewax instead of plasticine etc ( but I'm in about 400th page right now so maybe someone already did that). When I will find a time I will post some sort of tutorial how to make your own earpads to specific size and shape as I found some nice way to do that and I would like to repay for your share. I noticed that many really nice members are banned right now and its quite sad as I really appreciate their effort. For now I would like to ask few questions:
1- Are the drivers from t20rp, t40rp and t50rp the same beside white paper at the back of the driver? I know that this question was here few times but it was never fully proved and I noticed that each driver have different dot colour on the back of it. The one from my t20rp have pink dots and I noticed that some of the driver have blue. But I also noticed that some t50rp pictures have pink dots also. I'm wonder if dots colours are only to distinguish different dampening paper or there are some difference in magnets or diaphragm? Did anyone finally figured it out?
2- Is there anyone with working diaphragm from recent t20rp out there? as I destroyed one of mine and I hope I wont need to buy another pair just for one diaphragm.
3- Is there LFF still out there? ;) as probably most of us I was wonder what did you do inside Paradox. Can I ask if you didn't create vacuum inside? you sealed your Paradox quite well, and you mentioned few times that opening them will destroy the mod. Also there is no sound and resonance in the vacuum:) beside inside soaking pressure of vacuum on the diaphragm I don't see anything that would make it a bad idea. If you didn't made vacuum or pomp other gas inside what do you think about that idea? the diaphragm can be sealed pretty easy around the edges.
4- has anyone tried dampening inside structure of the driver between magnets (beside Russian hardcore modder) I did that but I used felt and some protruding fibers were causing distortions by touching moving diaphragm. Next time I will use thin leather just like Russian guy did but without cutting frame.
Also I would like to say to be careful with rockwool as it creates some sort of evil dust inside which driver likes to soak inside. And its not fairy dust- it wont make your drivers fly...
Sorry for chaotic post and terrible English;)
Check my head-fi profile for what I call the "Radical Russian Roulette Mod." There are two videos available for streaming or downloading that shows you how to do it. :-)
Be careful using a heat gun on the T50RP (and T40, T20). Too much heat will make them brittle and prone to break.
PM me for a replacement diaphragm. Not perfect but will work. Oh, and it's free of charge + shipping if you're not in CONUS.