I have several question about modding the T40/50's.
1) Has anyone figured out a way to make the sound as neutral as possible but with a boosted sub bass? I'm talking about a fairly flat sound from 100 to 10000hz but with maybe 3-4 db boost going down from 100 to 2hz. Obviously EQ'ing is one way, but I'm talking about actual physical changes.
2) has anyone tried the Fostex TH900 earpads on the T50? I see they only cost 30 dollars, which is actually cheap compared to other high quality leather pads, half the price of Mr Speakers ones.
3) Are the new drivers in the Mk3 version of these headphones different to the Mk2 or do the mods apply to the Mk3 version as well?
4) And finally, would angling the driver create similar effects as on regular dynamic drivers? Meaning, better imaging, more forward image and soundstage? I see that nobody made a custom 3d printed angled baffle, even though who produce these headphones, and wonder if there's an obvious reason for NOT doing it, or did people just not bother with it?
Hi derbigpr,
I actually would like that kind of mod;D Changing pads can do this kind of sub extension, and th900 pads might be a nice option, they look nicely made, you will just need to check what is the size to be sure they will fit. Price seems also fair, I actually didn't know they cost 30$. Few weeks ago I made my own pads. I made lot of photos and I was planning to prepare nice tutorial but it will need to wait probably for my holiday I start in 2 weeks. Right now I can send you sheets for prints you can use for sewing your own pair (it does really nice extension but for nice sub you will need to amp your headphones) if comfort is only issue then original pads are pretty comfy if you will angle them with cotton from inside (it will create some sort of chamber). With thick pads scene is also wider and somehow cleaner. (I attached image of pads I did, it was about 1 week, few hours per day, mostly sewing in bus to work
4) Angled baffle is a nice thing, it saves enclosure space if you make front part that goes out of the baffle profile and the pads dont need to be so thick, its also easier to make some sort of internal chamber for ear, with flat baffle and angled pads its harder to achieve this kind of chamber because of cushion. Im doing something like that right now but its to early to show it, but you can take look at my photos with those wooden headphones: http://www.head-fi.org/g/a/919686/just-listened-to-some-fostex-t50rps-today-wow/ , they have this kind of baffle/ear chamber but without front side that goes out of the baffle profile. It seals well around ear.
edit:
sorry for large image
and here is example of angled baffle from Sony with front part out of the profile I mentioned: http://cdn.head-fi.org/8/8b/8b75f3ab_IMG_0084.jpeg
it does not touch ear because pad is thicker, it makes driver closer to ear and with right angle. If pads have strong profile and are thick it makes sound wave direction positioned to the back of the ear and not to the inside