Orthodynamic Roundup - Page 1345

Quote:

Originally Posted by Arzack 

Hello, Sometimes, i'm lucky, i've found a HP-1, it sounds great of course, but it's incomplete, no headband....

 

So, if someone have any dimensions.....

 

Of course, i can build my own, in leather for example, but would prefer have the exact dimension !

 

If i found that can complete the thread with all the build and take some photos , that's can be usefull for every one !

 

Sorry for a so poor english !

 

Thanks a lot for you're forum

 

Normaly, now, the post is the good place !

Wasn't there one guy offering to make CAD-CAM headbands? I'm sure Wualta would remember this. Those headbands are often broke and the chance of finding a replacement is probably as slim as Twiggy.

DIY is another option:

http://www.sonavor.com/audio/yamaha/headphones/hp1/hp1_01.html

Good luck!

I posted this pic a while back but...

What iQEM posted might be most useful as it even has the hole layout! Wish I had that back then xP

The imagine I just posted is letter size no borders. I used a thick pleather and it's quite comfortable. Never tried with leather so I cannot compare, but one thing for sure is that a simple headband like this will be comfortable even without the two point support of the original headband.

I didn't particularly find the need to cut off the original two pointing points and superimpose it, instead I put the two "JAPAN" labeled plastic covers to find a suitable location, marked it with a pen, and drilled it.

I know :P but I essentially did what the person did, laying the headband flat and somewhat tracing it.

I know RD is too humble to post this himself  , but kudos for doing such a great job. These are measurements done by Purrin who dedicates many of his precious hours to further our interest and understanding .

YH1

YH3

These graphs tell us what we have always held true for these vintage orthos and it is a testament to many hours of fine tuning that we see such a flat frequency response.

congrats and thanks guys ..dB

Quote:

Originally Posted by dBel84 

These graphs tell us what we have always held true for these vintage orthos and it is a testament to many hours of fine tuning that we see such a flat frequency response.

Wow, congrats RD!

Methinks it's time to update the search index... :)

Edit: done!

Wow... 10kHz slain and buried. I need to do that on mines... >_<

Quote:

Originally Posted by wualta 

With the search engine updated and the good results from the old first-gen Yamahas, I feel like purrin' myself. Tip of the driving cap to Purrin and RD.

 

Are those your Yammers, dB?

These are RD's own yammers :

I believe this is the picture of the suspects.

And, great job RD.

as guru said - RD's Yammas and hard work , excellent results ..dB

Quote:

Originally Posted by dBel84 

I know RD is too humble to post this himself  , but kudos for doing such a great job. These are measurements done by Purrin who dedicates many of his precious hours to further our interest and understanding .

 

YH1

 

 

 

 

These graphs tell us what we have always held true for these vintage orthos and it is a testament to many hours of fine tuning that we see such a flat frequency response.

 

congrats and thanks guys ..dB

Just WOW! Looking at these graphs is a pleasure guys. I'm so happy that I bought TDS-5m which are direct copy of Yamaha YH1. Sure I will post some internal pictures and photos of modification process and the results. To bad I have no measuring equipment to check the FR or CSD.

Just finished (temporarily) transplanting the 32ohm SFI drivers I got from BMF, thanks again Keith!

And sorry usual comment-- "sorry for the bad pics" and I hope I placed the drivers correctly LOL

Nothing is inside yet except the Flashband (Very cheap Dynamat replacement) on the baffle that I got from the D1001 since the Fostex and the D1001 have the same baffles.

Used hot glue to make the drivers stay in place, and i think its alot easier to remove than putty

Since the drivers are in NOS condition, I tried listening to it earlier and I feel that it sounds like a stock t50rp with bigger soundstage and imaging.