Orthodynamic Roundup - Page 729

People licking the driver.

magazines , headphones, whatever


..dB

After some listening to the Dual, I found that I like bass extension and treble, but not the messy headstage. I compare to the Grundig that has the best headstage I've heard (But I don't have any of the famous headstage-cans so it doesn't mean so much).

I decided to use the same damping as the Grundig. The Dual is a convertible half-open-back. The black disc that closes it to a vented-closed design can be removed. So, I took it out. Problem was, deep bass disappeared. Wualta thought some extremely dense felt might restore it. It worked very well.

I now have a very thin and light damping on the driver, and a very thick and dense felt on over the grilles. No dots, discs, donuts, or other things that can cause reflections or make the damping uneven over the driver. It's clearly improved headstage.

I like how Dual cans look, the open back should be actually making headstage better. Do you have pics from inside of the cups?

Sure!

Wow, green leafs and Dual frames. Sexy!!!

Maybe I should make posters of those pictures and sell here on head-fi?

Actually, those bars that goes across the cups are a bit of a pain. I've now dampened them using leather that I glued on the inside of the bars.

I also added another layer of leather on the quick-pads. Since they are filled with acoustically quite transparent foam, they needed one more layer. And a ring of thin felt to make them more comfortable.

They sounded good already, though. But I wanted headstage to get even more precise. All this amazing ortho sound in 3D

I feel so very sorry for the Grundig and Dual engineers who never got to properly hear the amazing cans they made. They were so close! Just a piece of felt in the right place, pads with larger hole, and a proper seal of the baffle. That's not too difficult.

Maybe this damping scheme would also work on the HOK80.

my diyOrtho's 120Ω coming back to live, and it surpass the 32Ω puck (different damping material/scheme)...maybe next project, place the 120Ω SFI to Woodie puck, vice versa...yes, i love Ortho's...

note:
i almost stress out when my SFI died, and only K400's left...

Sorry if this has been asked before. But I was wondering if there was a place where I could find replacement screws for the Yamaha Orthodynamic headphones. Everytime I open up the headphone, it seems part of the screw seems to wear away. This isn't a big issue right now, I would just like to know if anybody else had the same problem and found a solution.

refill the holes with epoxy , let it dry and then tap them with the screw - I have used some heavy duty screws but they sit proud and you can feel them through the pad - the epoxy route is what I have started to use..dB

Thanks Donald! I'll try the epoxy sometime this week. Probably stop at Home Depot or something this week too. I still haven't found a good dampening setup for the Yamaha headphones. They are...quite stubborn.

I used a metric HEX head machine screw on rythmnmonkey's YH-100s. I'll be ordering additional screws soon and plan to order a little smaller size. If it works, I'll share the link.

Yes, it's obvious really. Once you have spent the good part of a year obsessing over damping schemes.