[swspiers]

Your wish is my command! I'm interested to see what the answers to this are too.
http://www.head-fi.org/t/715797/everybody-has-different-ears-but-how-different

You rocketh, my friend.  See you there!

 

[bigshot]

Wait? Weren't you the guy who said the first harmonic is @ 1.5x the natural frequency? :etysmile:  

II looked that up the other day and figured it out... I had mixed up harmonics and overtones in my head. The first overtone of quite a few musical instruments (particularly percussion and brass) fall ahead of the first harmonic. I often use cymbals as an example of which harmonics are important and which aren't, and the first overtone of those fall around 1.5 times the fundamental.

 

[Beagle]

   
Perfection for old people with hearing deficiencies in the upper range, you mean?

 
Old people have hearing deficiencies in the upper range? Really? Midrange or treble? Or maybe young people have hearing deficiencies across the entire spectrum...

 

[conquerator2]

Old people have hearing deficiencies in the upper range? Really? Midrange or treble? Or maybe young people have hearing deficiencies across the entire spectrum...:rolleyes:

Or maybe you're overly defensive :rolleyes:

Oh and older people do have hearing deficiencies in the treble region...

 

[OkawaiiO]

Um im not sure what big shot is talking about but if u drop 5 db in the 14k + range i can totally hear the difference. Im not saying the song is very different but I can hear a definite cliff at the high frequencies. It also effects ALL IEM(since iems don't normally extend that far) im sure a significant roll off at 12.5k is a very big deal... especially at this price  

 

[Clemmaster]

Or maybe you're overly defensive

Oh and older people do have hearing deficiencies in the treble region...

Amen.
 
Seriously bigshot, I appreciate the reporting work you've done on this thread - and for the PM1 in general -  don't get me wrong.
I just don't want to hear about a so-called "perfect" headphone, especially when this one has a treble response that's more rolled-off than a LCD-3 (most people say it, not only the graphs). It is just deceptive for people who buy blind based on readings. It is not how it should be, it is how you like it to be. I don't.

Spoiler: Warning: Spoiler!

I hope that, at this price point, people considering the buy already have experience and know how to deal with the taste/earing abilities/preferences/incentive differences that the reviewers might have.

 

[olegausany]

Anybody care to share their EQ settings to turn my PM-1 into a HD800  HE90? Thanks in advance.

I have tried it but wasn't successful but be aware that i don't know how to interpret measurements or use parametric EQ so maybe that is the problem. Was unable to get clarity of details HD800 have

 

[bigshot]

Oh and older people do have hearing deficiencies in the treble region...

 
Nope, you're wrong. Everyone with normal hearing for their age can hear treble. People over 50 generally lose the ability to hear above 16 or 17kHz... the last three or four notes in the top octave. There is nothing up there to speak of in recorded music except noise.
 

 
By the way, I miscounted before when I said that human hearing spanned 7 octaves. It covers 10. This chart is divided roughly by octave. Treble occupies three octaves, all of which are below 10.2kHz

 

[bigshot]

  Um im not sure what big shot is talking about but if u drop 5 db in the 14k + range i can totally hear the difference. Im not saying the song is very different but I can hear a definite cliff at the high frequencies. It also effects ALL IEM(since iems don't normally extend that far) im sure a significant roll off at 12.5k is a very big deal... especially at this price  

 
What are you using to do your rolloffs? If you are using the Apple EQ, it has tremendous spill and is very inaccurate.

 

[Focker]

   
 People over 50 generally lose the ability to hear above 16 or 17kHz... the last three or four notes in the top octave. There is nothing up there to speak of in recorded music except noise.
 
 
 

 
This is not correct. Look up Presbycusis. 

 

[achristilaw]

I've been using the PM-1 for months with no change in the sound at all. Even from sample to sample there is very little difference.

If you folks want a headphone that meets the standards of "perfection"... audibly flat response, inaudible levels of distortion, plenty of dynamics... the PM-1s are it. I would bet that you could take a good digital EQ and make them sound pretty much like any other brand or model of headphone at normal listening volumes.

In theory, there are a million different aspects of sound reproduction. But all aspects are not created equal. Frequencies are what we actually hear. Balancing them properly is the lion's share of the battle. Lousy headphones might have problems with distortion, but once you reach a certain quality level, distortion isn't an issue any more. The importance of timing issues are greatly exaggerated. And although there might be differences in dynamics, most headphones are liable to be worse in that regard than the PM-1s, not better.

Specs are a useful way of getting an idea of how something sounds, particularly the frequency response curve. But you have to know how to read it, and the specs have to have been measured fairly. A lot of manufacturers cheat their specs in one way or another.

If your using a transformer connected tube out? An SET has truncated top and bottom, can't charge an ortho, the design is limited! Your not able to push an ortho to notice a change anywhere at anytime.
 
A freq response graph? An ear is much different, and far more sensitive than typical mic's. The amp used, the microphone used, the centering of the diaphragm, the program used on the computer..... every variable alters the response. They become meaningless when you compare the same phone to everyone else making a response curve? They can differ wildly...... Moral of the story? They are worthless!

 

[Beagle]

Or maybe you're overly defensive

Oh and older people do have hearing deficiencies in the treble region...

 
No, not unless they've abused their hearing or their name is Pete Townshend.
 

 
Seriously bigshot, I appreciate the reporting work you've done on this thread - and for the PM1 in general -  don't get me wrong.
I just don't want to hear about a so-called "perfect" headphone, especially when this one has a treble response that's more rolled-off than a LCD-3 (most people say it, not only the graphs). It is just deceptive for people who buy blind based on readings. It is not how it should be, it is how you like it to be. I don't.

 
If you haven't heard it or don't own it (apparently you don't own anything) or have no intention of buying it anyway, and are only basing your comments on other people's opinions, graphs or mere speculation.....please do us all a favour and step away and let people who are actually in the know try and help some of the others who may be seriously interested in the PM-1.

 

[MacedonianHero]

   
No, not unless they've abused their hearing or their name is Pete Townshend.
 
 
 

 
Exactly. I'm 42 and I can still hear to about 18.5kHz in both ears...take care of your ears and they'll take care of you. 

 

 

[musicinmymind]

 

   
No, not unless they've abused their hearing or their name is Pete Townshend.
 
 
 

 
Exactly. I'm 42 and I can still hear to about 18.5kHz in both ears...take care of your ears and they'll take care of you. 

 

 
Please explain

 

[Claritas]

If you haven't heard it or don't own it (apparently you don't own anything) or have no intention of buying it anyway, and are only basing your comments on other people's opinions, graphs or mere speculation.....please do us all a favour and step away and let people who are actually in the know try and help some of the others who may be seriously interested in the PM-1.

People should be free to discuss the graphs too. If there's a discrepancy between what listeners are hearing and the measurements, it's worthy of discussion.