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

[planarmagnetic]

   
Where / When do I sign up?

I just started a thread if you want to check it out. http://www.head-fi.org/t/756150/i-have-started-work-on-these-fully-custom-headphones-3d-printed-and-cnc-wood-cups-t50rp-drivers

 

[MattRobertson]

I think the best part about these headphones is their dynamic range. Everything just sounds like it has so much space to breathe in these. That combined wight the soundstage make them great

 

[hemipowered007]

While waiting for my hifiman shell I made a baffle for the t50 driver out of plywood. Is there any reason I should switch to mdf or a soft tonewood like limba for an open back t50? I have a sheet of black limba on order for possible closed cups, so it's possible to just use that. Anything else I should be concentrating on with the driver enclosure design here? Or just snug fit?

 

[fleasbaby]

While waiting for my hifiman shell I made a baffle for the t50 driver out of plywood. Is there any reason I should switch to mdf or a soft tonewood like limba for an open back t50? I have a sheet of black limba on order for possible closed cups, so it's possible to just use that. Anything else I should be concentrating on with the driver enclosure design here? Or just snug fit?

 
Plywood? I don't know...I use MDF in my baffles as I simply had it on hand and its easy to work ...would be fun to see if plywood is better...

 

[hemipowered007]

Plywood was only because I had a sheet in my garage!

 

[fleasbaby]

Plywood was only because I had a sheet in my garage!

 
LMAO...Necessity is the mother of invention...I love when I finish a build and realize half the materials and tools needed were already in my house.

 

[hemipowered007]

I'll redo them in limba. Only issue is the limba is 1 15/16 perfect for closed cups, but way to thick for a baffle. So I have to take a chunk and have it planned down to maybe 1/2 inch?

 

[fleasbaby]

I'll redo them in limba. Only issue is the limba is 1 15/16 perfect for closed cups, but way to thick for a baffle. So I have to take a chunk and have it planned down to maybe 1/2 inch?

My first baffles were 1/2 inch thick (1/4 inch outside the cup, 1/4 inch in). That eats up a lot of room in the cup though, and if you want ten ending up a useable height, you need to conserve that as much as possible, so my next iteration will have 1/4 inch outside, and an 1/8th inside...we'll see what the decreased mass does. I am compensating slightly by not making a dish on the ear side of the baffle this time around.

 

[hemipowered007]

Well my first goal is open cup, so doesn't matter volume inside really. I'm sure the inch of side/reflective surface matters though.

 

[Lohb]

Going to use this wood on a T50RP woody asap. Liking the contrast....(not this cup though)
Just messing with lacquer treatment on a cup just now...
 

 

 

[fleasbaby]

Going to use this wood on a T50RP woody asap. Liking the contrast....(not this cup though)
Just messing with lacquer treatment on a cup just now...

Great stuff! What is it? I have some Rosewood and some Paduak on their way to me this week.

 

[hemipowered007]

Some great work being displayed here. Good job guys! It's inspiring to me

 

[planarmagnetic]

new head band

 

[Lohb]

Great stuff! What is it? I have some Rosewood and some Paduak on their way to me this week.

South-east Asian rainforest hardwood. Want to use it with my LCD's and try and get 3 strong tone areas across the wood.

 

[vertical]

South-east Asian rainforest hardwood. Want to use it with my LCD's and try and get 3 strong tone areas across the wood.

That sounds like it will look really nice!