Head-Fi.org › Forums › Equipment Forums › Headphones (full-size) › Orthodynamic Roundup
New Posts  All Forums:Forum Nav:

Orthodynamic Roundup - Page 1378

post #20656 of 23352

well I am with Ludoo and others on this one. I never liked the YH1 / HP1 very much, even with a supercharged / well matched ortho amp. It is possible that I never owned "THE" perfect amp for the YH1 and I am OK with that. I perfected the YH100 for my ears ( took the better part of a year of tweaking ) and it was as near "stat" like as I might describe and I still fell back to my HP50 which had the heart and soul that the YH1 sorely lacked. I admit that there is much variability in the lower ranks of the yamaha world but there are a few specimens out there which far outshine their touted brethren. I have heard a lot of YH1/HP1's probably in excess of 15 if anyone needs a number and they all had a similar tonal quality and presentation to them. Nothing bad or unpleasant just a little bland. Having had the very good fortune of hearing at least half a dozen different YH1000's and similar number of YH100's I stand firm with the conclusions that I have drawn from the yamaha ortho species..dB

post #20657 of 23352
Ugh, leeperry, everytime you talk your praises about your YH-1's the chances of my YH-1 surviving as stock goes down frown.gif
I don't want to rip that pleather earpad while opening them up!!!
Only curious on whats this magic you're talking about since my aniso HP-1 are more than fine to my ears. Though I did get very lucky with whatever material I used initially as replacement for the felt wualta mentioned.

My HP-3 is pretty bass heavy (to my ears/tastes) with very early roll off in anything high frequencies.
I'll try modding these soon... once I get a hang on how to easily remove the baffle. Last time it took me over 5 minutes.
Per side...
Don't want to risk breaking the plastics on it, since my HP-2 driver's foster home is having those kind of problems...

Meanwhile still working on removing the drivers in another dynamic. I'll get it eventually...
post #20658 of 23352

I was reading comments on a YouTube video, and some guy said that that planar magnetic headphones can cause cancer because it creates an electromagnetic field. That's false, right? I did a quick search with no returns, but I'm curious.

post #20659 of 23352

I bet that feller uses a cell phone....and posted that video sitting next to a wireless router. There can be ( apparently ) therapeutic effects with magnets, would have to do some more research into magnetic therapy to determine polarities and applications.

 

All dynamic and ortho/isodynamic cans will have this except that this voice coil is larger and flattened out compared to a dynamic that is wound in a circle and gummed to the diaphragm.

How that translates into the electromagnetic field who knows. Interesting to see a measurement no doubt.

 

If it's a concern at all hit up the Ultrasone models that have the shielded baffles, ze olde Mu metal shield between the driver and the ear.


Edited by nick n - 10/26/12 at 12:21am
post #20660 of 23352
Quote:
Originally Posted by Sniping View Post

I was reading comments on a YouTube video, and some guy said that that planar magnetic headphones can cause cancer because it creates an electromagnetic field. That's false, right? I did a quick search with no returns, but I'm curious.

Nobody knows exactly what causes cancer but there are many things which contribute. Scientific tests regarding the use of mobile telephones and the EM waves they emit have been inconclusive. Others will claim that living close to large electrical pilons is more damaging to your body. I think you should be more worried about artificial sweeteners and preservatives in food, and standing too close to smokers as those are proven to be mild carcinogens, rather than tiny forms of magnetism that don't come close to the natural forces of gravity, and the silent threat of free radicals. 

 

But if it were true, we would all continue listening to headphones in the same manner smokers continue to smoke. ksc75smile.gif

post #20661 of 23352
Thread Starter 

And I don't recall bashing (or especially praising) the sound of the YH-3 in general, or in a way that could be construed as general, at any time. If someone can point me to a post where I disrespected it, or simply gave a wrong impression of it in the aggregate, I'd appreciate it, and I'll correct it.  I've tried to correct my earlier posts so no one is led down a path to a dead end.


Edited by wualta - 10/30/12 at 12:59pm
post #20662 of 23352

a small contribution to the HP-1 HP50 discussion:

I changed the damping layout of the HP-1 again within a very short time:

700

now the damping foam fills the outer circle of the cup and above this an open cell foam presses the felt disk to the driver. the original black felt stripes are left out.

so there are two variants that I like both and it is difficult to decide which one is better. this one with the dampend outer ring without the black felt stripes is open and spacious but the tonal balance is not perfect. the version with the stronger damping of the inner part of the disc and the dampening of the enclosure leads to a nearly perfect tonal balance, but it sounds too similar to my AKG 240DF, even with this sterile touch. The bad thing about this driver is that it shows so much promise and whatever you try, it is a compromise.

The hp50 on the contrary sounds good - nearly whatever you do with it. I put the white disc back again to see if I could hear the absence of the ringing - and now the disc stays in because it sounds absolutely amazing with and without the disc. it lacks the grandness that the electrostats certainly have, but it is just fine as it is.

post #20663 of 23352
Quote:
Originally Posted by Sniping View Post

I was reading comments on a YouTube video, and some guy said that that planar magnetic headphones can cause cancer because it creates an electromagnetic field. That's false, right? I did a quick search with no returns, but I'm curious.
As GREQ said, we'd be as smokers continuing with our orthos biggrin.gif

Besides, if they wanted to talk about magnetic fields then no one is safe from dynamic drivers either. Not only do they tend to use stronger magnets than the vintage orthos, albeit smaller. the coiled voice coils (could not think of a better way to formulate this sentence) are the most common physics example of magnetic field generation without real magnets (hence the movements of the diaphragm). Electrostatics is a whole different kind of danger for the paranoid.

Besides, last time I checked everything in the world gives (or can be claimed to give) cancer lol. That's how uncertainty clouds cancer. Some things just have much higher certainty of being carcinogens. P.S. aging is a form of mutation, as is cancer.

In other words, enjoy the music while you can!
post #20664 of 23352
Quote:
Originally Posted by Sniping View Post

I was reading comments on a YouTube video, and some guy said that that planar magnetic headphones can cause cancer because it creates an electromagnetic field. That's false, right? I did a quick search with no returns, but I'm curious.


it is kind of funny that one kind of people buy magnetic jewellery and put it into their ears, wear it on a necklace, and all other parts of the body - to energize and heal themselves, while others fear magnets and think out of this fear that they will make them sick :-)

btw, these jewellery has a magnetic field that is much stronger than the headphones.

in case, you make a difference between permanent magnets and electromagnetic fields: the different machines with elektromagnetism for home use are strong enough to destroy a credit card. and there are at least studies for the positive use with broken bones.

post #20665 of 23352

just in case, that anybody in this forum is interested: I sell the sony sfi hybrids for the costs of the material (35 EUR plus shipping, everything is new). I wait for a while and give them to the marketplace afterwards.

for me the other pair that I made before, is good enough for the daily train ride (and they fit better to my head) and I do not use them at home.

post #20666 of 23352

The last picture, just to show the new  and final pads, before these get sent off to their new owner along with the natural sound cross-feed cable and the PA2V2 there ( not the D2 though ) I had to bump up the gains on each channel a bit on the amp even with these SFIs being 32ohm their sensitivity is a bit lower than I figured. ( isn't it around 92ish? )

It'll be a half decent gift for someone with little to no higher-end audio experience. Not saying these are high end or anything but compared to any others they may have heard... That way they can't compare  to anything else either maybe that's for the best haha. Seriously though I wish i could keep these.

Have to make some sacrifices at times.

I'm including 2 sets of bass port tuning inserts also, a 1/8 inch ( installed here ) and the next size down @ 7/64 inch.

 

The pads are attached to the baffles with industrial strength contact cement, took a bit of guts to use that but if i don't, then I will be back into them again to tweak sound stuff that most normal folks won't even notice when listening to them..

 Pads are made from Deer-tanned Sheepskin.

700


Edited by nick n - 10/26/12 at 9:26pm
post #20667 of 23352

don't know how they sound, but they are among the most beautiful cans I have ever seen. Congrats, nice work.

 

Now to something completely different:

-I noticed that most orthos based on the HP-50 drivers or SFI have on ear pads... I take it for granted that there are no decent results if you try to put HP-50 drivers in a Shell with over ear pads?
 

post #20668 of 23352

Thanks.

 

Went in tonight and revisited some older mods, which is good because as experience builds and new materials emerge adaptation is the key. In this case its a material that I should start calling the "Noise Janitor".

 

It seems ,in most cases, to help clean up resonances in whatever size cavity it's used in, obviously it is best directly damping things and a couple layers behind that where applicable.

 

At the same time as letting details shine through it takes any nasty peaks off the top and also damps any vents decently to bring up the bass, so it is increasingly seeing more and more usage on my end. Doesn't seem to reflect anything when compressed either, the composition of it must diffuse all that in it's fibers.

 

" It's just that E-Z "  - Tim Heidecker ( Tim and Eric Awsome Show Great Job )

It responds well to stacking layers also. I try to do at least two layers where possible directly on the driver rears.

 

So far I have used it to tweak/replace previous damping in the following with results good enough I cannot see a reason to revisit them.( all varying configs but never only 1 layer )

  • Fostex T-10
  • Fostex T50RP
  • Yamaha HP-1
  • Yamaha HP-50
  • Latest Custom Alder sfi
  • Dead Rebel sfi mod ( in combo with acousti disc  behind it )
  • Realistic Pro30 ( see crappy pics below )

 

...definitely more to follow.

700

( ^ 2 discs in recess at rear of cup driver fits into, one more directly over that, then a ring on top of that,

this configuration allows 3 layers directly behind driver, and 2  1 layer over outer perimeter vents )

Ended up using a little bit iof fluffy acoustic filler in rearsto compress it to the driver sounds slightly better closer to it

700

(^ here you can see it's uncompressed and not as thin as the top pics might lead you to think, compresses well )

 

 

 

There are basically two types and so far they are close but I do prefer the straight cotton one as it is slightly fuzzier and barely thicker than the half bamboo fiber blended fabric/felt/batting.

 

This is designed and sold as quilting batting and for that purpose it is surprisingly thin about the same thickness roughly as the typical craft felts floating around these days, but the cotton one is slightly thicker.

Called Arctic Cotton and Arctic Bamboo available at half decent fabric stores.

 

will I regret posting all this out in the open an few months from now???, nahhh, i like it that much

YMMV, Right application, right sized pads, and all that obviously


Edited by nick n - 10/28/12 at 3:11am
post #20669 of 23352
Quote:
Originally Posted by roBernd View Post

Now to something completely different:

-I noticed that most orthos based on the HP-50 drivers or SFI have on ear pads... I take it for granted that there are no decent results if you try to put HP-50 drivers in a Shell with over ear pads?
 

I've made a few MDR-CD380/SFI franken phones and they sounded pretty good to me. Note the CD280 is nearly exactly similar in every regard. The pads are the weakest link in this circumstance, but there are ways around them.

 

In general, the ear chambers need to be as small as possible, imo, if you're going for an SFI-circumaural. I could see SFI's playing pretty well in some Sony eggo's, or maybe even one of the higher up Sony MDR-ZXseries headphones. The ZX500 is cheap, yet the ZX700 has much nicer pads. It's hard for me to tell if the drivers are angled in the ZX500, also, but I can't imagine they're not... Would Sony do that? (Edit - The ZX500 drivers are NOT angled. :/ ) Regardless, the ZX700 has 50mm drivers which has to be considered because you'll need to get creative there, but overall it looks like a much better candidate. Imo, the Denon AH-D301, 501, 310, 510, etc. etc. all look promising as SFI foster phones to varying degrees. Given the mentioned models I think you should have a pretty good idea of what I'm talking about here. Whatever you can find cheap, in good condition, and possibly with one or more busted drivers.


Edited by khbaur330162 - 10/28/12 at 12:07pm
post #20670 of 23352

So nick, as I understand you used two discs + the larger cutout, not including the ring, correct? Are all three used layers A.C. or is it part A.B.?

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Headphones (full-size)
Head-Fi.org › Forums › Equipment Forums › Headphones (full-size) › Orthodynamic Roundup