I've read a lot on Head-Fi, mostly crazy advice on modding Grado's and vintage Orthos. One of the drivers crapped out in my HD555's the other day. Lost all bass and developed random crackling. Turns out the driver had come lose and had gotten banged up pretty good. Tried to blow out the wrinkles, pull them out with tape, but it's just too mangled. Rather than spend money buying replacement drivers for old headphones I got off Kijiji for next to nothing, I thought there had to be a free fix...
...And at this point I noticed the KSC75 drivers are almost a perfect fit for the baffles. And I thought: "Those damn earclips have never fit right, I've got a pair of phones with a busted driver, and another pair that I never use.....2 birds one stone?" So I looked around on Head-Fi and was surprised that no one has tried it before. You seem to cram these drivers into everything!
Of course my experience building sub boxes for car audio in my youth has taught me that sticking a random driver into a random enclosure just because it fits usually ends up sounding like "worst song, played on ugliest guitar". But someone has got to be the first to try, so that I can warn everyone else not to do it.
So I'm almost finished the work. I've taken pictures, and thought it would be fun to share the experiment and results, for better or worse. I'm saving the listening tests for last! Now I'm just making some posts so that they'll let me upload pictures to my shiny new account!
I've got Sennheiser HD555's, Grado SR80i's (mods inspired by Kojaku's Killer Grados), old school Fostex T10 orthos, even older Fostex HV/1A's, Koss KSC75's and SportaPros, and some Shure 315's I never use because I can't get used to things in my ears. I've owned (and mostly broken) Fiio amps, Audioengine D1, DACDestroyer by Hot Audio, and a CMOY. I run a pair of NHT Absolute Zeros off an old Marantz with a passive sub for my speaker set up. I mostly listen to FLACs, but have a turntable for my favorite albums.
I buy most of my gear in garage sales or off kijiji, huge fan of anything under $100. My love of cheap old gear and extremely abusive habits means I've had to learn a few things about fixing and modding. In fact if you own anything I own and want to know what breaks first I got answers!
(Retired Super Villain, current star attraction at Fun Beards)