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The Stax Thread III - Page 173

post #2581 of 3743
This was posted in the entry STAX thread, but I thought someone here might be curious too. Since Tyll received the custom electrostatic headphone amplifier, he's offering to measure electrostatic headphones. I sent in my SR-207 purchased last year and I just received them back today with a data sheet of measurements.



They look pretty much identical, if not better than the SR-507 measurements he did previously, so I'm not sure why anyone in their right mind would purchase the SR-507 over the SR-207 when the SR-207 is $535 USD less from STAX USA's pricing. Actually, looking at the SR-009 measurements, the SR-207 measures pretty close to that too. Not too bad for a $390 (that's 1/11 the price of the SR-009) headphone! Not bad at all. : o
Edited by miceblue - 6/13/14 at 11:07pm
post #2582 of 3743
Quote:
Originally Posted by zachchen1996 View Post
 

Anyone here use (or have heard) a Schiit DAC with the KGSSHV / 009?

I use the Schiit Gungnir with the KGSSHV and previously the Stax 717. My HP is the 007mk1.

post #2583 of 3743

Yes the Stax entry level stuff is a real bargain IMHO

post #2584 of 3743
Quote:
Originally Posted by marcoarment View Post
 

 

 

- Tubes can be finicky, and eventually burn out. I don't want to tube-roll. I don't want to buy NOS tubes from Russian missiles on eBay (again). I don't want to have to figure out what to replace them with, and where to get more, when they die. I don't want to diagnose a weird imbalance or noise in one ear when a tube gets flaky. I want an amp that works the same way every time.

 

- Tubes seem to pick up noise more easily, and I'm surrounded by computers and phones and tablets with cellular radios all the time. When I spent some time with a couple of tube amps at home, I had problems with my most sensitive and detailed headphones — the Beyer T90 — having audible noise from both tube amps that they didn't get with two solid-state amps in the exact same setup. And from what everyone says, the SR-009 are particularly sensitive and detailed.

Never had so many noise problems as with my KGSS and the 009.

It is so sensitive that even the flickering of the MacbookPro display or a Iphone/ipad nearby can be easily heard.

With the Stax Amps there will be no noise at all. Its going to be interesting how a BHSE will act. CANT WAIT(2 1/2 years now waiting) to find out!

 

The DAC is a ESOTERIC D02 and cabling the good stuff from Wireworld, so that could not be the source.

 

I have a very quiet surrounding which may a reason that i´m more sensitive in hearing than others. My Summit X Electrostatic Loudspeaker for example have a noise problem on the active sub amplification, very subtile, that most of the other Martin Logan Summit owners haven't recognized.

---The Martin Logan ReQuest Speaker with the same Amp, a Lyngdorf TDAI2200, did not have any noise.

 

Karl


Edited by karlgerman - 6/14/14 at 1:07am
post #2585 of 3743
Quote:
Originally Posted by miceblue View Post

This was posted in the entry STAX thread, but I thought someone here might be curious too. Since Tyll received the custom electrostatic headphone amplifier, he's offering to measure electrostatic headphones. I sent in my SR-207 purchased last year and I just received them back today with a data sheet of measurements.



They look pretty much identical, if not better than the SR-507 measurements he did previously, so I'm not sure why anyone in their right mind would purchase the SR-507 over the SR-207 when the SR-207 is $535 USD less from STAX USA's pricing. Actually, looking at the SR-009 measurements, the SR-207 measures pretty close to that too. Not too bad for a $390 (that's 1/11 the price of the SR-009) headphone! Not bad at all. :

 

Thanks for that miceblue; I said I didn't need to spend so much on "earwhatsits".

 

http://www.head-fi.org/t/582131/is-anyone-building-the-kgsshv/420#post_10559430

post #2586 of 3743

This sounds like mains borne electrical interference so might be worthwhile getting hold of a simple mains filter to plug your audio equipment into. http://www.james-audio-sales.co.uk/index_mainsnoiseexplained.htm

As far as i'm aware the KGSS is not usually subject to such problems. I would pm Kevin Gilmore or Spritzer on this forum and ask if they can help you diagnose the problem or find a solution  

 

Quote:

Originally Posted by karlgerman View Post
 

Never had so many noise problems as with my KGSS and the 009.

It is so sensitive that even the flickering of the MacbookPro display or a Iphone/ipad nearby can be easily heard.

With the Stax Amps there will be no noise at all. Its going to be interesting how a BHSE will act. CANT WAIT(2 1/2 years now waiting) to find out!

 

Karl


Edited by complin - 6/14/14 at 5:30am
post #2587 of 3743

thanks, we had some conversation already. one known thing is the transformer which has to be changed to a sealed highquality version. Spritzer told me that he had some transformers that tend to generate a humm.

 

and nothing of the other equipment ever had a problem with interference noise. 

 

but mains filter are always worth a try!

post #2588 of 3743
Quote:
Originally Posted by miceblue View Post

This was posted in the entry STAX thread, but I thought someone here might be curious too. Since Tyll received the custom electrostatic headphone amplifier, he's offering to measure electrostatic headphones. I sent in my SR-207 purchased last year and I just received them back today with a data sheet of measurements.



They look pretty much identical, if not better than the SR-507 measurements he did previously, so I'm not sure why anyone in their right mind would purchase the SR-507 over the SR-207 when the SR-207 is $535 USD less from STAX USA's pricing. Actually, looking at the SR-009 measurements, the SR-207 measures pretty close to that too. Not too bad for a $390 (that's 1/11 the price of the SR-009) headphone! Not bad at all. : o
u/ i
post #2589 of 3743
I am all for measurements but buyer beware. People measure what they can and I have seen virtually no studies showing that what is typically measured is what determines what we regard as good sound. That would be a lot more difficult scientific problem. If it had been solved we wouldn't be here spouting our subjective impressions, we would simply be discussing the latest data available.

I think that frequency responses can be useful, but can be misleading because of coupling issues and frequency response corrections applied to the raw data.

In the end you still have to listen and decide for yourself. Go to meets and concerts of live, unamplified music to establish your standards.
post #2590 of 3743
Quote:
Originally Posted by edstrelow View Post

I am all for measurements but buyer beware. People measure what they can and I have seen virtually no studies showing that what is typically measured is what determines what we regard as good sound. That would be a lot more difficult scientific problem. If it had been solved we wouldn't be here spouting our subjective impressions, we would simply be discussing the latest data available.

I think that frequency responses can be useful, but can be misleading because of coupling issues and frequency response corrections applied to the raw data.

In the end you still have to listen and decide for yourself. Go to meets and concerts of live, unamplified music to establish your standards.


Let's assume we have the perfect methods for measuring headphones. Even then we couldn't just discuss the latest data, as our ears are not shaped in the exact same way. There's always that last human factor, so yes, in the end you still have to listen and decide for yourself - no matter how exact the measurements are.

post #2591 of 3743
True true. From objective measurements though, using a similar system and methodology, comparative results can still be useful for some people.
post #2592 of 3743

Ah I wish were as simple as that :D

One of the most important things is that big blob of grey matter between your ears. This no doubt has a much bigger impact on our opinion of the sound based on our perceptions, personal experience, how its been "wired" together etc.  

 

Quote:

Originally Posted by AManAnd88Keys View Post
 


Let's assume we have the perfect methods for measuring headphones. Even then we couldn't just discuss the latest data, as our ears are not shaped in the exact same way. There's always that last human factor, so yes, in the end you still have to listen and decide for yourself - no matter how exact the measurements are.

post #2593 of 3743
Quote:
Originally Posted by complin View Post
 


I partially disagree, or think that we should be a bit more accurate in this matter.

We initally process auditory stimuli in a very similar way, it's not like when I hear a high pitched noise you hear rumbling bass. The core of the problem are associations, memories and so on, on that I agree with you. It's not just "the brain", part of it is very reliable and accurate. The fun starts when memory (working, long term...) comes into play.

post #2594 of 3743
Oh man, please get to some top demo rooms of hi-fi shows. I just came back from one today, and there were some McIntosh 200k solid state systems which sounded
ok, hi-fi sounding but ok, a Linn system for 40K that sound flat, and there were some solid state systems at 20K that sounded really bad.

Then we heard some tube based systems in various room by Audio Note, Lampizator and some other Italian makes, and they were superb.
Plus the Audio Note system was hiked up really loud with 30 people nodding there heads, and that set up was 25K.

All the above were speaker systems with digital front ends.

Which room at the end of the day was full? It wasn't the solid state rooms....

Now what were you saying about tubes?
post #2595 of 3743

That's not really useful evidence of anything, though. Tubes are nostalgic, romantic, and exotic. I'd always expect them to do well in non-blinded, subjective "tests", especially in a room full of high-end audio enthusiasts.

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