Modifying the Fostex T50RP is really gaining steam in the headphone world. HeadFier Smeggy took it upon himself to extract the best the Fostex T50RP driver could deliver, removing them from the plastic cups and vinyl pads and creating what he calls the "Thunderpants". Smeggy (aka Gary) removes the driver from the headphones and installs it in a well-sealed ported wood enclosure, replaces the pads and cable, installs a leather headband and does a few other tweaks. There have been a variety of other tweaks covered in the Thunderpants thread as well:
https://www.head-fi.org/t/501773/thunderpants I finally finished assembling my own set of modified Fostex T50RPs, and they sound great on my
Bottlehead S.E.X .
(https://forum.bottlehead.com/proxy.php?request=http%3A%2F%2F1.bp.blogspot.com%2F-pFlCHfnZo2A%2FTpWs0_mRFtI%2FAAAAAAAAAYA%2FTWevDAU72AI%2Fs1600%2FComplete-T50RP-1.jpg&hash=bc21572189ac990e8e5515f0fa40360434a63390)
(https://forum.bottlehead.com/proxy.php?request=http%3A%2F%2F2.bp.blogspot.com%2F-F49gBKQx_i4%2FTpWs1VmAtdI%2FAAAAAAAAAYI%2Fdn9AmtkQNdM%2Fs1600%2FComplete-T50RP-2.jpg&hash=30ed127fd61b0f085c698042ad32fd1d44161910)
Here's all the steps for my
personal build. I'd highly recommend looking into them if you're a headphone enthusiast.