I want to share my FINAL completed setup for the bedroom. After many headphones and much modifications, this is it. The T50RPs sounded very good after I did the DBV3 mods with the HM5 pads, so good that I took some FA-003 Ti s as a part trade for my HD600s as they were not getting used anymore at all. But when I saw those Fischer Audio velour pads in the box - I had to use them. Here are some problems (and the solutions) that the pads gave me (all without opening the headphones up again):
1. The mids are brighter and noticeably clearer, everything sounds amazing, BUT less bass. The solution(s): I had them a little too bassy to start with, not neutral, so that helped. I also changed to a warmer, bassier source, and I changed the tubes in my amp to some punchier Russian Voshod 6J1P-EV tubes. lastly (this could be all in my head) I changed from the vModa cable back to stock cable as it sounded bassier to me.
2. Amazing soundstage, noticeably better, everything is perfectly positioned around me, BUT the vocals sounded a tad too distant. Solution, nothing, it took a few days and now it sounds natural to me. I got used to it pretty quickly. This is good because I didn't want to open them up AGAIN!
3. Sounds a little quieter than before, so I changed the gain in my amp from +4 to +5 so I don't have to crank the volume and all is well again.
I haven't been following the thread lately, sorry if these pads have already been discussed. They also help with clamping force, as I purchased the T50RPs used and they were loose on my head. I should mention they took some stretching by hand before I could put them on. They will not be coming off, and they will probably not fit my FA-003s anymore now.
Love these headphones!