Yeah yeah, I know I'm pretty infamous for putting down all the T50RP mods and modders on this forum, and I'm probably going to get a lot of shıt for posting this. However, I have three SE-700s sitting around, one of which doesn't work at all, and I need to get rid of them. Rare as it is, I knew a non-working one wouldn't fetch much on eBay, and it'd be a shame to throw away such a nice looking shell. Then I remembered that my friend sent me a T50RP a while ago as a gift...
So, I completely disassembled the T50RP, removed the SE-700's pretty piezoelectric films, and started working.
To see if there was any potential in this endeavor, I just wanted to try the bare driver at first. I set it in horizontally and it seemed to fit well. However, I ran into an issue...
These damned round screw holes got in the way when I tried to close the headphone. So I turned it vertically...
... and it was just barely too large to fit on the piezo driver shock mounts. And the screw holes were still keeping me from closing it.
I had wanted to keep this mod reversible, but I guess that's out the door. Glad I grabbed a hack saw.
I cut away the screw hole on the top and that did the trick. Now it fits, and there's a small amount of the screwhole still there so it should fit back in the T50RP shell if need be.
However, if I close the cup the driver rattles around inside the casing. I'll need something to hold it in place.
Turns out the pieces of yellow foam used to tension the SE-700's diaphragm provide just enough pressure to hold the driver in place. So I stuck those in there and closed it all back up, and the driver stays put. Note that I've only done all this this to one side thus far.
Sound is... well not so good. Immediately I hear a really gross-sounding resonance in the midrange, almost certainly caused by the gap between the driver and the baffle plate. Couple that with piss-poor bass, a complete absence of treble, and a very harsh sound and you get quite an unpleasant listening experience. However, it does sound considerably better than the stock RP at this point, so I'm going to continue with this mod. I'll report back on this thread as I continue to try new things.
Edited by takato14 - 8/30/13 at 10:51am