Just listened to some Fostex T50RPs today... WOW!

[headphonatic]

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Mine goes down to 13Hz at normal volume levels. There is plenty of sub-bass that this headphone can put out.

Mine was audible up to 20-25 hz, but I don't care much for bass.

 

[headphonatic]

I don't think I'm opening my t50's anymore, I'm at the place where I don't what else to do with them, maybe increase detail?

 

[LFF]

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Mine was audible up to 20-25 hz, but I don't care much for bass.

I agree....not a basshead myself...I crave natural sound...the super tight low bass just came as an extra blessing.

 

[BmWr75]

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I was doing some reading on fatmat vs. dynamat and saw some comments on a couple of automobile boards suggesting that fatmat has a tar-like odor (that dynamat does not have).  IMO, this might warrant the price premium.  Can anyone comment on this?

I have not noticed much of an odor with Dynamat.
 

 

[skeptic]

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I have not noticed much of an odor with Dynamat.
 

Appreciate the input!  Curiously, does this mean you've moved on from the simple mod linked in the summary thread (http://www.head-fi.org/t/452404/just-listened-to-some-fostex-t50rps-today-wow/5745#post_8037638 ) to something more along the lines of a rasta 2?
 

 

[Dacendoran]

>What are sandwich pads how would they affect the sound compared to a pair of regular 840 pads or how would I make them if they are infact 2 pads meshed into one.
>What kind of sound response/comfort level could I expect to see with 940 velour pads vs regular 840 replacement pads.
 
>As far as easy/cheapish lowend mods goes for me right now it seems I need to aquire:
Suspension headband assembly|
Akasa Paxmate
Dense/wool felt
Cotton balls
Hairdryer/heatgun
Chisel exacto knife
Plasticine (gray preferabbly)
cotton balls
 
I'm a bit of a basshead and listen to a lot of electronica so anyone that could point me in the right direction in increasing the bass response/punch would be nice. And if anyone has some paxmate for sale let me know I'd rather not buy tons more than I need ^.^

 

[KneelJung]

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Brian,
 
Being that the connection appears solid, there still might be some issues with making a solid connection to the actual solder plate itself.  Where it stands, I'd suggest buying the Permatex rear window defogger repair kit for about $12 - $13 at an auto parts store.  The primary item you'll need is the little bottle of the brown paint (it's a really tiny bottle) and the brush that comes with it.  Apply a coat around the two solder joints allowing the paint to flow down the solder a bit and connect to the board.  Apply about 3 coats, allowing for 15 - 30 minutes of dry time between coats. 

 
Permatex did the trick...back in business, thanks Wayne

 

[kalbee]

dacendoran, heat gun for what? Sorry just curious.

 

[BmWr75]

Quote:

     Quote:

Appreciate the input!  Curiously, does this mean you've moved on from the simple mod linked in the summary thread (http://www.head-fi.org/t/452404/just-listened-to-some-fostex-t50rps-today-wow/5745#post_8037638 ) to something more along the lines of a rasta 2?
 

I've got two modded T50s and one modded T20, all using the simple mods at the link above.  The first T50 I modded also used dynamat and felt covering it on the ear side.  The second T50 and T20 used the simple mods initiallly.
 
Ultimately I decided the T50 modded with dynamat and felt on the ear side sounded better than not having it,  Seems to me the bass has better extension and overall a clearer/cleaner sound (probably due to more resonance killing by the dynamat).
 
I later did the dynamat/felt ear side mod to the T20s.  It may just be psychoacoustic, but the T50 sounds a little better to me (both with the exact same mods).

 

[wje]

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dacendoran, heat gun for what? Sorry just curious.

Hopefully, the user isn't getting the Fostex mods confused with the Grado mods.  

   Now, for those mods, you'd need a heat gun to soften the glue to get the cups apart.
 

 

[Armaegis]

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I was doing some reading on fatmat vs. dynamat and saw some comments on a couple of automobile boards suggesting that fatmat has a tar-like odor (that dynamat does not have).  IMO, this might warrant the price premium.  Can anyone comment on this?

Fatmat does have an odour. You can always leave the sheet out in the open air for a couple days and that should clear it up. 

 

[hodgjy]

I opened up my T50RPs last night and tried a mod.  I filled in the baffles surrounding the drivers with plasticine.  Then, I lined the other half of the cup with felt.  Upon listening, I noticed almost no change in sound at all.  They still sound very tin canny and honky. 
 
What am I doing wrong?  Any suggestions?

 

[stratocaster]

Quote:

I opened up my T50RPs last night and tried a mod.  I filled in the baffles surrounding the drivers with plasticine.  Then, I lined the other half of the cup with felt.  Upon listening, I noticed almost no change in sound at all.  They still sound very tin canny and honky. 
 
What am I doing wrong?  Any suggestions?

I would suggest improving mass loading! My baffles are fully loaded with plasticine. Also lined the cup walls with Dynamat and  Paxmate over it. Then I removed the stock driver paper/felt, replaced it with stiff felt and stuffed a cotton ball into the center of the cup. Sound was kind of ok, bass nicely extended but a little murky on some tracks. There was a huge change for the better as soon as I mass loaded the earside of the baffles too. I used Dynamat round the drive and covered the alu foil with Paxmate.  The bass is a lot tighter and provides very nice extension to about 17 Hz.  Mids and highs sound just fine to my ears. So far I am deeply satisfied with the result. I am using Shure 840s, but I will try HM5 pads too, though.

 

[hodgjy]

Thanks!  I'll try some mass loading!

 

[headphonatic]

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Thanks!  I'll try some mass loading!

try burning them in, and I also think mass loading is beneficial. plus, try to get you hands on Rite Aid Natural Absorbent Cotton Squares and stuff them in your t50's, they won't sound tinny anymore.