Latest Thread Images

Orthodynamic Roundup
Apr 14, 2014 at 9:59 AM Post #22,816 of 27,137
jerg said:
  I sometimes call planar magnetics "orthos" because there's no way to abbreviate "planar magnetic". "Planar" can mean planar electrostatic too.
Click to expand...

 
And outside of headfi, "ortho" will make people think of teeth (or possibly feet/insoles).
 
Apr 14, 2014 at 10:40 AM Post #22,817 of 27,137
ballhead said:
  well well. i
do have those sony biocellulose drivers already.
Click to expand...

 
I'm sure everybody already heard on the Sony MDR-R10, i was reading about them yesterday and seem like they were pretty advanced for it's time using Carbon Fiber, BioCellulose and other materials that still not found on many headphones, even top of the line models, but they were dynamic, right? the driver design they produced don't look like any orthodyanmic or eletrostatic headphone i've ver seen.
 
Apr 14, 2014 at 11:31 AM Post #22,818 of 27,137
creato938 said:
   
I'm sure everybody already heard on the Sony MDR-R10, i was reading about them yesterday and seem like they were pretty advanced for it's time using Carbon Fiber, BioCellulose and other materials that still not found on many headphones, even top of the line models, but they were dynamic, right? the driver design they produced don't look like any orthodyanmic or eletrostatic headphone i've ver seen.
Click to expand...


that was offtopic - we were talking about r10 cups (open sounding closed design), but drivers are dynamic.
 
Apr 14, 2014 at 11:34 AM Post #22,819 of 27,137
ballhead said:
 
that was offtopic - we were talking about r10 cups (open sounding closed design), but drivers are dynamic.
Click to expand...

 
 Have you got some picture of the that ear cup the the Sony R10? i can't find that much information about this headphone, and while i was reading a review about it from 1989, i heard about that legendary open sounding close back design, but never got a picture of it on the inside.
 
Apr 14, 2014 at 11:52 AM Post #22,820 of 27,137
creato938 said:
   
 Have you got some picture of the that ear cup the the Sony R10? i can't find that much information about this headphone, and while i was reading a review about it from 1989, i heard about that legendary open sounding close back design, but never got a picture of it on the inside.
Click to expand...


Have you heard of google ? 
 
Apr 14, 2014 at 11:56 AM Post #22,821 of 27,137
creato938 said:
   
 Have you got some picture of the that ear cup the the Sony R10? i can't find that much information about this headphone, and while i was reading a review about it from 1989, i heard about that legendary open sounding close back design, but never got a picture of it on the inside.
Click to expand...

try this first.
http://apuresound.com/rtr.html
google finds plenty of images easily, by the way:)
and there is nothing extraordinary - sennheiser type delayed pseudo reverb mainly.
 
Apr 14, 2014 at 12:02 PM Post #22,822 of 27,137
ballhead said:
  try this first.
http://apuresound.com/rtr.html
google finds plenty of images easily, by the way:)
and there is nothing extraordinary - sennheiser type delayed pseudo reverb mainly.
Click to expand...

 
Yep, it's a fairly simple design, sadly, they are pretty rare headphones and only few people will have the chance to listen to them, would be nice if they made a similar model using orthodynamic drivers, maybe they could sound even better.
 
Apr 14, 2014 at 12:19 PM Post #22,823 of 27,137
creato938 said:
   
Yep, it's a fairly simple design, sadly, they are pretty rare headphones and only few people will have the chance to listen to them, would be nice if they made a similar model using orthodynamic drivers, maybe they could sound even better.
Click to expand...


are you serious? it's very expensive to make something good now, none of business- money-profit oriented company is interested in such things. this is not rare:
http://www.fostexinternational.com/docs/products/TH-900.shtml
 
Apr 14, 2014 at 12:30 PM Post #22,824 of 27,137
ballhead said:
 
are you serious? it's very expensive to make something good now, none of business- money-profit oriented company is interested in such things. this is not rare:
http://www.fostexinternational.com/docs/products/TH-900.shtml
Click to expand...

 
Wow, these headphones look pretty amazing, the price is also amazing, now imagine if they were orthodynamic headphones...
 
Apr 14, 2014 at 1:31 PM Post #22,825 of 27,137
creato938 said:
   
Wow, these headphones look pretty amazing, the price is also amazing, now imagine if they were orthodynamic headphones...
Click to expand...


Keep looking on that site. Fostex has a new Flagship Ortho in release.
 
Apr 14, 2014 at 2:17 PM Post #22,826 of 27,137
muzo2 said:
  @ballhead - Welcome to head-fi and nice work on those complex wooden cups.
 
 
 
Click to expand...


thank you. i suspect this thread and wualta personally ignited ortho revival, no less. and - not only cups - earpads are equally important, and traditional donuts are really not my
taste. few random pictures - earpads are gradually damped too, no internal reflections and really comfortable
.
 

 

 
Apr 14, 2014 at 3:52 PM Post #22,828 of 27,137
muzo2 said:
   
Impressive work. Whats the different materials used here. Also would be interesting to see wood internal damping materials. Are you sound engineer, how did you come up with those designs for cups and pads?
 
Click to expand...


1st picture - opencell foam, layer of memoryfoam on top, soft felt inside, layer of soft  felt outside for damping and leather with some perforation at strategic points outside. second - outer part is made of hard felt. so it's plenty of air in front chamber, but springy and no reflections. all the needed bass, airy highs, good sealing and no "pumping". damping in the cups - all kinds of felt, chopped when labyrinth is needed, loose wool and melamine for reflection canceling. and some geometry here. drawing ideas for designs is a part of my morning tea ritual, and it's every morning - so there are inexaustible resources in my drawing book. and i read a lot. can't  cover everything in one post.
 
Apr 14, 2014 at 6:29 PM Post #22,829 of 27,137
ballhead said:
 
1st picture - opencell foam, layer of memoryfoam on top, soft felt inside, layer of soft  felt outside for damping and leather with some perforation at strategic points outside. second - outer part is made of hard felt. so it's plenty of air in front chamber, but springy and no reflections. all the needed bass, airy highs, good sealing and no "pumping". damping in the cups - all kinds of felt, chopped when labyrinth is needed, loose wool and melamine for reflection canceling. and some geometry here. drawing ideas for designs is a part of my morning tea ritual, and it's every morning - so there are inexaustible resources in my drawing book. and i read a lot. can't  cover everything in one post.
Click to expand...

 
That's impressive, could you share some of your ideas with us? i guess this could help everyone.
 
Apr 15, 2014 at 3:34 PM Post #22,830 of 27,137

Dynamat donut covering the cup.

Donut of felt covering the vents on top of the Dynamat.

Foam donut over the Dynamat

Felt donut over the foam.

Driver on top of all that.
 

Screwed down the baffle with washers to reduce the stress on it.

Double-sided-taped some HK$80 (US$10) pads on top.
EDIT: The pads are from Jaben HK if anyone else is interested in them.
Overall improvements:
Much increased bass quantity and quality due to the large acoustic chamber I made behind the driver, I think. Slightly more treble but nothing to write home about. Same beautiful mid-range makes vocal and instrumental tracks sound excellent but the increased bass adds body to the music. I might be wrong with the perceived changes over stock form though. Overall, not bad for my first time 
biggrin.gif
 
 
You must log in or register to reply here.

Users who are viewing this thread

Total: 3 (members: 0, guests: 3)
Back
Top