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

[FraGGleR]

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Honestly, the DBV #3 is not that difficult to make, and even if you screw up a thing here or there, it still sounds fantastic.. just... not as good as it's capable of sounding.  The hard part is sourcing the materials... and there are members here who would gladly sell some of their leftovers to try to make up some of the cost of modding one pair.  

 
Lol, yes.  I am looking for random things to use acoustic foam on with since the minimum amount to buy covers something like 30 headphones.  I can't hear my computer as is, but I might coat the thing anyways.  
 
I might keep a cotton roll in case I get shot, though.  I think I could soak up several pints of blood with one roll...

 

[Tangster]

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Did someone find a donor cups from different headphone that would suit these drivers?

How about using lead sheets, they are used in speakers for damping cabinet resonances. One will still need to use rockwool, fibreglass for acoustic damping.

Wouldn't lead sheet be somewhat impractical given it's weight? You could try lead powder mixed with acoustic dampening clay though.

 

[bluemonkeyflyer]

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Wouldn't lead sheet be somewhat impractical given it's weight? You could try lead powder mixed with acoustic dampening clay though.

 
Lead is highly toxic. It can cause neurologic damage, dementia, and death. Don't use it!
 
Use tungsten powder instead to make your own DIY Tungsten Putty. You can get tungsten powder online or from a golf supply shop. Use your favorite non-drying plasticine, petroleum jelly, and talcum powder. Wear latex gloves. Make plasticine "pancakes." Spread on a thin layer of petroleum jelly. Lightly sprinkle tungsten powder onto the petroleum jelly. Fold and knead to evenly work the tungsten powder into the plasticine. Add a bit of talcum powder and/or a little more petroleum jelly, as needed. Once worked in evenly, repeat the process as needed to achieve your desired weight/density and consistency. Have fun. DIY tungsten putty works great. It has a higher mechanical damping factor than plasticine, but it is labor intensive. 
 
Newplast is close to tungsten putty in damping factor and a lot easier to use. You pay more for shipping from London to the States but it's cheaper than tungsten powder + plasticine. Note: commercial tungsten putty from fishing & tackle stores is too dense and dry; it is not maleable like plasticine and Newplast.
 
Try Dynamat.
 
Try "DHT 4 Me's" suggestion a day or two ago: Carbon fiber. I found carbon fiber in 1x3mm strips, 4 mm rods, and 4 mm tubes.Tubes are stiffer than rods and strips. I may give the tubes a try if current experiments don't work as planned.

 

[onefatsurfer]

EDIT: nevermind.  i'm not going to give advice on something as important as your health.  I agree, don't use lead.

 

[micmacmo]

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Lol, yes.  I am looking for random things to use acoustic foam on with since the minimum amount to buy covers something like 30 headphones.  I can't hear my computer as is, but I might coat the thing anyways.  
 
I might keep a cotton roll in case I get shot, though.  I think I could soak up several pints of blood with one roll...

So true. I have enough cotton, wool, microfiber, random cloth swatches, etc that I'm thinking of taking up quilting. 

 

[Armaegis]

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So true. I have enough cotton, wool, microfiber, random cloth swatches, etc that I'm thinking of taking up quilting. 

 
Which would make for lovely headbands...
 
or headband slipcovers? I could totally see customized headband slipcovers becoming a thing.

 

[Tangster]

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Which would make for lovely headbands...
 
or headband slipcovers? I could totally see customized headband slipcovers becoming a thing.

T50RP earmuffs? Just the thing for winter.

 

[Armaegis]

Add a logo... "Muffs by Dre"
 
 
Ok that was my really weird thought for the day.

 

[chinook9]

I noticed on the Fostex International site: http://www.fostexinternational.com/docs/products/RP-Series.shtml At the bottom of the page is a "TM110B, Replacement Headphone Cable" that has a 3.5 mm connector for the amp. I googled for one of these but the only thing that shows up with TM110B is a duplicate of the original. Anyone know the correct number or where the one with the 3.5mm connector can be obtained?

 

[micmacmo]

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T50RP earmuffs? Just the thing for winter.

 
I stitched Koss KSC75 headphones into a winter headband. Looked better than stock when outdoors and sounded great but looked stupid indoors. True story.

 

[chinook9]

Next question: Is this the correct thread to ask about the best amp for these headphones. If so, listening to the likes of Pink Floyd and Dire Straits how about the Matrix Cube or Yulong D100? How about using the DAC in my iBasso D10 into a Matrix M-Stage or Bottlehead Crack? I owned Magnapan and Apogee planar speakers many years ago and I really liked them but they never had any decent bass. The modified Fostex are pretty good in this regard and I really love the sound but I believe they can use more power than my little battery powered D10 can provide.

 

[FraGGleR]

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Next question: Is this the correct thread to ask about the best amp for these headphones. If so, listening to the likes of Pink Floyd and Dire Straits how about the Matrix Cube or Yulong D100? How about using the DAC in my iBasso D10 into a Matrix M-Stage or Bottlehead Crack? I owned Magnapan and Apogee planar speakers many years ago and I really liked them but they never had any decent bass. The modified Fostex are pretty good in this regard and I really love the sound but I believe they can use more power than my little battery powered D10 can provide.

Well, these have sounded great out of an Cmoy/UD100 stack, O2/ODAC stack, a Nuforce HDP, and phenomenal out of a Bottlehead S.E.X. kit.  The Bottlehead was at a meet and blew me away with both my LCD-2's and my T50RP's.  It can throw about 2W into each channel so more than enough power for just about anything.  I should have a balanced B22 built a little after the New Year and will report back.  My short answer is that I really don't think these need a ton of power to sound very good.  They might open up a bit with more power like they did with the Bottlehead, but I really don't think you NEED to go that far to get the most out of them.

 

[wje]

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I noticed on the Fostex International site: http://www.fostexinternational.com/docs/products/RP-Series.shtml At the bottom of the page is a "TM110B, Replacement Headphone Cable" that has a 3.5 mm connector for the amp. I googled for one of these but the only thing that shows up with TM110B is a duplicate of the original. Anyone know the correct number or where the one with the 3.5mm connector can be obtained?

 
I think if anyone would have it, it would be: http://www.fullcompass.com  - However, a review of their site had only the original one for $21.99.  But, I see you are interested in the one that is just one meter long (38") with the 3.5mm connector on the "locking" end and another 3.5mm on the other end to plug into your smaller / portable device without having to use a 1/4" to 3.5mm adapater.  Right?  If you're in the U.S., hook me up for some shipping funds, and I'll take my spare Fostex cable, cut it down to a meter, then install a Rean (a division of Neutrik) 3.5mm connector for you and get it in the US postal mail (1st class.) 
 
This might be a heck of a lot easier than having to waste hours and hours, only to get to the point of finding one for $20.00 and having to pay $7.00 or so in postage on top of that, too.
 
Or, if you are interested in making your own custom length, and have the soldering equipment and the 3.5mm plug, there are Fostex cables for sale in the forum here for about $5.00, each.

 

[geetarman49]

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Next question: Is this the correct thread to ask about the best amp for these headphones. If so, listening to the likes of Pink Floyd and Dire Straits how about the Matrix Cube or Yulong D100? How about using the DAC in my iBasso D10 into a Matrix M-Stage or Bottlehead Crack? I owned Magnapan and Apogee planar speakers many years ago and I really liked them but they never had any decent bass. The modified Fostex are pretty good in this regard and I really love the sound but I believe they can use more power than my little battery powered D10 can provide.

i have the original matrix cube with soldered opamps  ... imo, there are better choices.  for an amp, i personally like the project sunrise hybrid with old stock rca 12au7 or old stock amperex ecc88 while many others here use the ss O2 (which i've not tried yet).

 

[bluemonkeyflyer]

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Is the "Fostex T50RP - All Stock Left Side: Current production with smooth finished metal hangers and non-textured, translucent white driver dampener" in the thread "Fostex T50RP Incremental Mods and Measurements" the newest model available?
And would you guys agree that Stock with Grodan Rock Wool and Shure 840 Pads is the easiest way to get the flattest frequency response?
Thanks.

 
I just checked my most recently acquired three sets of T50RP's, received last week from bhphotovideo. They are the latest production with smooth finished metal hangers and non-textured, translucent white driver dampening material.