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Orthodynamic Roundup - Page 517

post #7741 of 19952
Quote:
Originally Posted by mypasswordis View Post
T50RP news: I took off the big square and swapped in more reflex rectangles. The diaphragm is looser now, a bit too loose. The treble is enough, but there is some sibilance.
So does this count as improvement? I've found sibilance is only a problem with it built into the recordings, like 'Supreme Beings of Leisure' and others. No problems with anything decently recorded.

I don't think I'd want more than the smallish reflex dot on these as I think they'd be overly bright. One thing you can try is a small reflex dot on the front of the driver. It can help with upper midrange shoutiness and sibilance.

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post #7742 of 19952
Suprisingly, placing a slab of blu-tack over the center hole on the front of the SFI's drastically improved the bass, sound is also generally warmer than prior to doing so.
post #7743 of 19952
This explains why HP50 are a bitch to drive:

post #7744 of 19952
Quote:
Originally Posted by Faust2D View Post
This explains why HP50 are a bitch to drive
I guess the 300 ohms are because of the mono wiring, putting the two drivers in series.
post #7745 of 19952
^ Thats what I had assumed when I had my set ye back when.
post #7746 of 19952
Quote:
Originally Posted by Duggeh View Post
^ Thats what I had assumed when I had my set ye back when.
Duggeh, when you have the time could you take a few pics of your Sony DAS-R1, including the bottom and back panel? I love its design and would like to find a way to make similar looking custom cases for DIY amps. Ta
post #7747 of 19952
HP-50 is not mono. HP-50A is mono. These are the specs of HP-50S:

post #7748 of 19952
Well, then there's an error in the impedance specs
post #7749 of 19952
The HP-50 wasnt any harder to drive than the HP-50s. And since my HP-50S has more damping, it is actually harder to drive than the HP-50.

I agree with ludoo, must be a error on the specs. (cant remember if i posted my impedance before).

EDIT:
Yup its DEFINATELY not 300ohm, see my results here
http://www.head-fi.org/forums/4856065-post5152.html
post #7750 of 19952
Looks like it, but it is very strange and I am thinking there was a mono variation of HP-50. Heh.
post #7751 of 19952
Quote:
Originally Posted by Faust2D View Post
HP-50 is not mono. HP-50A is mono. These are the specs of HP-50S:
My HP-50 was monaural connector. But I changed it into the stereo connector.
post #7752 of 19952
Quote:
Originally Posted by neoTT View Post
My HP-50 was monaural connector. But I changed it into the stereo connector.
Hello neoTT, are you certain it was a HP-50, and NOT a HP-50a, or HP-50s ?

Also, how does your new Kenwood sound ? .
And what other orthos do you like the sounds of.
And have you found any good damping schemes?

Thanks!
post #7753 of 19952
Thread Starter 
EDIT: I need to post more quickly once I open the REPLY box!

Makes you wonder why Yamaha changed to the single coiled cable for the rest of the HP-50 family.


Quote:
Originally Posted by sachu
I have my Yh-100s on right now. The microfiber and single thin felt layer is working beautifully for me.
This is excellent news, both for us YH-100 fans and for microfiber.


Quote:
Originally Posted by sachu
I don't know if anyone has been successful in getting the head stage to project forwards.
This is difficult to do, but I find, as others have, that if the drivers are angled such that they fire at the ears in a line parallel to the skull rather than ortho (ha!) to it, frontal location is improved.

The most extreme examples of driver angling I know of are the Stax Sigma and AKG's K1000. Audition them if you can, of course, but you can do your own experiments easily with the SFI. Smeggy has posted diagrams for making a simple wooden cup for such a thing, and of course you can use blu-tack for experiments.


Quote:
Originally Posted by sachu
p.s: Wualta, thanks for explaining what headstage means.
It means pretty much what you probably already suspected. If you have several headphones around, examine them to see if any use angled drivers. One of my favorite out-of-head-locating headphones is the ancient Sony ECR-500, and sure enough, the drivers are slightly angled, but only slightly, so it doesn't necessarily have to be a Sigma to get the job done. Test with binaural recordings like the shaking-matchbox clip.

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post #7754 of 19952
Quote:
Originally Posted by wualta View Post
This clears up a mystery about the HP-50. It has a dual-entry cable but it's mono. All I've had is blurry photos and I don't think we've encountered an HP-50 owner, much less an auction for the '50.

Makes you wonder why Yamaha changed to the single coiled cable for the rest of the HP-50 family.
Errhem, I was the HP-50 owner . I sold my pair to bjarne.
Mine was stereo.

The difference was that the HP-50 has a thin dual entry wire like the HP/YH-3, and it has no leather headband again like the '3' series.
post #7755 of 19952
Thread Starter 
Quote:
Originally Posted by Kabeer View Post
Errhem, I was the HP-50 owner
NOW you tell me. So Yama really screwed up with the box specs. That casts doubt on all the others. Argh, I say.

EDIT: But wait-- Faust2D to the rescue... then Kabeer takes it all back. Turns out the HP-50 is mono after all...

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