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Orthodynamic Roundup - Page 1423

post #21331 of 23556
Quote:
Originally Posted by vid View Post

If it's Convolver 0.3 then it's what I'm using. Works with my foobar 1.1.1, but no idea if newer versions support it.

 

More important, though, than the software, is the impulse response you feed in. Meaning, you'll want to start with getting an electret capsule microphone for a few bucks and attaching it to some sort of a round disc so you can get a seal on the phones. Then measure the channel balance. (Yes, I've experimented with this - you don't need an accurate response measurement to fix the channel balance, you're only interested in the relative difference between the channels. As long as you measure them identically, you ought to be fine without a fancy calibrated microphone.)


I have a few reasonably decent mics left over from recording days. I will have to dig them out of the archives (no easy feet when you have an electronics graveyard like mine:)). I was thinking of using a silicone pot holder with the centre cut out to seal the mic to the headphone.

 

I have a fairly good source of test tones and sliding scales, but am curious as to what you are using for the actual measurement.

post #21332 of 23556

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Edited by vid - 4/6/13 at 2:23pm
post #21333 of 23556

Wore the HP-50 for about two hours just now and had no comfort issues. That's way more than I can stand to uphold most cans. So I'm not sure in which way some find the -50 uncomfortable..?

post #21334 of 23556
Quote:
Originally Posted by vid View Post

Wore the HP-50 for about two hours just now and had no comfort issues. That's way more than I can stand to uphold most cans. So I'm not sure in which way some find the -50 uncomfortable..?


Spent the weekend wearing the YH3's and did not find them out of line. Pads are dismal (typical) and that headband is loose so I find they move around if you are not still. Uncomfortable though, no. The T20rp's take the cake for that.

post #21335 of 23556


Following up on the yhe50 transplant :

 



I have now tuned these to a very satisfactory level.Time for some listening impressions :

After sealing the baffle with blutak & a few other tweaks, the bass is adequate now for my tastes. The treble was excellent till I received RD's T50rp now its 'extended but grainy'.rolleyes.gif


Where it differs from most orthos is wrt soundstage - having open back, velour pads & angled drivers, this headphone has as good a soundstage as I have heard in any headphone. It sounds completely open.
The mid-range is ofc divine(it's a Yamaha!) cool.gif
 

post #21336 of 23556

 Depending on how my attempts at opening the YHE go I might have to try a transplant as well.

 Do you find the drivers to be any different than say an HP3/HP50 type? Either in construction or sound?

I would assume that you are doing some sort of direct damping on the rears ( no need to disclose secrets ph34r.gif ) or are you letting it fly and dealing with it other ways with inner cup treatments?

Guessing that the velour /fabric pads don't give you a problem with bass levels then? For some reason i have a mental block when it comes to fabric pads on an ortho, that could be something I need to get over.

 

Thanks very much for the pictures! ( and possible inspiration )

 

PS:

 

Those are R.D.'s T50rp in the picture there?

post #21337 of 23556
Quote:
Originally Posted by gurubhai View Post

Where it differs from most orthos is wrt soundstage

 

The lack of soundstage (and I guess the grainy treble too if we nitpick) is pretty much my only gripe with the HP-50 anymore. To manage to give Yamas more soundstage is most likely the recipe for awesome.

 

That the ECR-500 in your avatar, nick?


Edited by vid - 3/25/13 at 6:22pm
post #21338 of 23556

Yes it's khbaur's picture he uploaded to the Wiki.  Just such a great design had to scoop it for my avatar.

 

Now I have to go listen for "grain" in my HP50 treble. bigsmile_face.gif

post #21339 of 23556
Quote:
Originally Posted by nick n View Post

 Depending on how my attempts at opening the YHE go I might have to try a transplant as well.

 Do you find the drivers to be any different than say an HP3/HP50 type? Either in construction or sound?

I would assume that you are doing some sort of direct damping on the rears ( no need to disclose secrets ph34r.gif ) or are you letting it fly and dealing with it other ways with inner cup treatments?

Guessing that the velour /fabric pads don't give you a problem with bass levels then? For some reason i have a mental block when it comes to fabric pads on an ortho, that could be something I need to get over.

 

Thanks very much for the pictures! ( and possible inspiration )

 

PS:

 

Those are R.D.'s T50rp in the picture there?

There are no secrets as far as my mods are concerned.

Yes, there is direct damping on the back of the driver - using a medium density felt.Also, there are couple of different foams which serve to care of chamber reflections and to provide pressure on the damping layer.

The stock paper-like material in the front was replaced by felt (blue one in picture) for keeping a tighter control on backwave mixing(needed moar bass!)

If you take care of proper baffle sealing & the above backwave mods, I don't think you will be disappointed wrt bass. Although, I won't still call it a bass-heavy headphone just a bass adequate one.

 

And Yes, Those are indeed R.D's T50RP.biggrin.gif

Quote:
Originally Posted by vid View Post

 

The lack of soundstage (and I guess the grainy treble too if we nitpick) is pretty much my only gripe with the HP-50 anymore. To manage to give Yamas more soundstage is most likely the recipe for awesome.

 

That the ECR-500 in your avatar, nick?

Actually, the treble is pretty nice on these yhe50s, much better than anything I could mange with HP50.

Like I said I would have termed the treble excellent if only I hadn't received RD's T50RP recently.

The treble on these T50RP is absolutely fantastic.Its smooth,extended & without even a hint of grain. I have looked for any treble peaks or dips but there seem to be none. I bet that even electrostats would envy this kind of treble.

So, compared to this particular T50RP, the treble on yhe50 does sound a bit grainy but it is otherwise quite fine.And it's probably the price one has to pay for that Yamaha mid-range !

post #21340 of 23556

The Unipolar 'stat I've been working on would certainly envy any sort of non-corrosive treble. I wonder, are the mids on the YHE better than on the HP? Both my Unipolar and HP-50 have more or less a flat response in the vocal range, but the Unipolar's mids sound even better anyway. Not sure if it's not just their bigger soundstage helping out.

post #21341 of 23556

The mids on yhe50 are indeed more clear & open, also the imaging & separation is an improvement over the HP50 which helps a lot in making it sound a lot more enjoyable.

I have tried the HP50 as well in an open frame & it receives similar benefits from an open enclosure.However, that frame(PMB80) was a bit too large for the HP50 driver & it sounded rolled off at either end of spectrum. The mids sounded great though!

post #21342 of 23556

I'd love to transplant the -50 drivers, though the single-sided cabling is keeping me back...

 

How's the channel balance on your HP-50? I find their imaging to be spot-on once the channels are matched. Though of course still limited by the soundstage.

post #21343 of 23556

I have the original HP50 with dual entry cable so that made the transplant easy.

 

I don't really listen much to HP50 since I have other toys to keep me busy but I did check for the center image in my HP 50 which sounded ok to me so I assumed that the channels were balanced atleast as far as my ears can detect.

I was anyways referring more to sharpness & definition of image not the actual azimuth (which would be affected by balance).

IME, the sharpness of imaging in orthos is determined primarily by driver damping & chamber reflectons. You need a critically damped ortho with a minimally reflectin/open chamber for the best possible imaging.

post #21344 of 23556

Sharpness and definition are what I refer to as well - though not sure what you mean by azimuth?

post #21345 of 23556

oh, its just a fancy term for direction of object from listener.

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