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The Stax Thread III - Page 116

post #1726 of 4001
Quote:
Originally Posted by DefQon View Post

It's happened to me as well having bought a second hand but mint condition 404 from YJ and then bam, imbalance and eventually a dead left channel.
Were you able to diagnose the root cause? It's very surprising to me that the driver would completely die (even operation at -20dB or -30dB would be more common.
Quote:
Originally Posted by DefQon View Post

I recommend you build a KGSSHV though. Good first project to venture into DIY.
Would the KGSSHV not be a bit tonally bright with the 009? I think it's just right with the 007 but it's a bit too much for even the Omega.
post #1727 of 4001
Quote:
Originally Posted by 3X0 View Post

Would the KGSSHV not be a bit tonally bright with the 009? I think it's just right with the 007 but it's a bit too much for even the Omega.

 

This has always been very interesting to me, ever since I bought my SR-009s and spent sufficient quality time with both the former and the SR-007s.

While I am very sensitive to brightness, and it's one of the reasons I don't particularly prefer the HD800s for listening to music, I never had this kind of issue with the SR-009s.

 

Furthermore, I agree the SR-007s are a bit "darker" than the 009s (on a KGSSHV), but it's in a peculiar way. The SR-007s are mostly more naturally laid back and less resolute, but not exactly less bright than the SR-009 in particular to the treble, especially upper treble. The frequency graphs would also confirm that. The SR-007s are very interesting in their way of being "dark" sounding on a lot of gear, but properly amp'ed on something like a KGSSHV they are not so much.

 

If anything the SR-007s are harder to drive to sound closer to their best than the SR-009s. 


Edited by negura - 3/13/14 at 9:50am
post #1728 of 4001

Compared the new AKG K812 to the HD 800, both from the Sennheiser HDVD800. Not very impressed by either. Then I tried the SRS-4170 system. 

Ridiculous how superior it sounded. 

post #1729 of 4001

Any DIYers doing KGSSHV builds that you guys would recommend?

post #1730 of 4001
Quote:
Originally Posted by s1rrah View Post
 

 

I've had the SR-303's, SR-307's and currently the SR-404LE's ...

 

The SR-307's were my least favorite of the three and yet they weren't fatiguing/sibilant in the highs at all; they were actually fatiguing in the mid-range, which I found to have a quite noticeable "etch" ... and a sort of "hardness" to the overall mid range tone. They are not bad headphones at all, but I thought the SR-303's were much better, more smooth and with noticeably better sound staging and especially bass. The SR-404LE's I find even better than both of the former mentioned Stax cans and definitely the best "Lambda" headphone I've personally heard.

 

I personally would recommend you also explore the Koss ESP-950 electrostatic (it actually comes with it's own amp but can be used with Stax amps as well if you have an adapter made from the Koss extension cable that comes with the ESP-950 kit. 

 

I find the Koss ESP-950's to be every bit as enjoyable as the SR-404LE's (I have both the Koss and the 404LE's currently) if not even *more* smooth and musical and engaging. The Koss cans are not quite as hyper detailed/analytic as the 404LE's but are in every way the equal of them in most other regards. Considering your comments about high freq's? Either a pair of SR-303's, SR-404's or especially the Koss 950's would be a sure thing.

 

Best of luck...

Hi,

 

Thanks for the reply. Please can you explain what is the noticeable 'etch'? Would you say the SR-307 is overall smoother than the SR-202?

 

The Koss ESP-950s look interesting but I can't find a dealer in the UK. I had a pair of very cheap Koss headphones years ago which gradually disintegrated until finally ending up being recycled.

 

Martyn

post #1731 of 4001

Still waiting for someone to verify if they have same finding as me.

post #1732 of 4001
Quote:
Originally Posted by okw3188 View Post
 

Just got a SRM-006ts from Price Japan and waiting for my headphone to arrive. While tuning the offset for the tubes, I discovered that 2 of the 4 big capacitor (220uF, 400V) and the 3 small ones (4700uF, 10V) around the transformer has about 370Vdc leaking on top of its body. Would appreciate if any user of this amp would verify on their set. It definitely looks not right to me.

Still waiting for someone to verify if they have the same finding.

post #1733 of 4001
Quote:
Originally Posted by okw3188 View Post
 

Still waiting for someone to verify if they have the same finding.

 

I can't verify that this particular amp would do that on those caps, but I can verify that it is perfectly normal for the cans of electrolytic capacitors to be at a voltage other than ground. One situation where this would happen is if caps are put in series which is quite likely in an electrostatic headphone amp.

post #1734 of 4001
Quote:
Originally Posted by martyn73 View Post
 

Hi,

 

Thanks for the reply. Please can you explain what is the noticeable 'etch'? Would you say the SR-307 is overall smoother than the SR-202?

 

The Koss ESP-950s look interesting but I can't find a dealer in the UK. I had a pair of very cheap Koss headphones years ago which gradually disintegrated until finally ending up being recycled.

 

Martyn

 

I don't really know how best to describe it except via words typically used to describe physical things: "dry" ... "hard" ... "etched" ... and it just occurs in certain portions of the midrange (again, I lack the terms here) ... especially on louder areas of the midrange (think female vocals, mid-key piano strikes, etc.) ...

 

Again, hard to explain.

 

As I've read about, I've come to see that the Lambdas in general, all have a bit of this (stats in general too though some, supposedly are immune) ... but in my experience, the 307's (and probably that whole series) suffer from it markedly more than the 303's and 404's ... and I've found the 404 Limited Editions to have the least of any Lambda I've heard (though I've not heard that many).

 

Similarly, the Koss 950 cans are devoid of this mid range glare/hardness/etch. Really, just insofar as pure musical enjoyment? Including an appropriate amount of resolution, detail and sound stage? I'd say the Koss 950's are the best "all around" headphones I've ever owned (from Jazz to Metal to Rock to Chamber to Electronic to Every genre, really). And I've heard HD800's, all the Grados, all the other Senns, tons of AKG's, quite a few Stax, Beyer T1's, all the LCD variants (which I personally find hugely over rated) ... all the Shures ... 

 

Really, the Koss cans are quite a find. I've had mine up as an interest check for a bit since getting the 404LE's ... since the latter do just about everything just as good ... but just can't bring myself to sell them. 

post #1735 of 4001
Quote:
Originally Posted by dailydoseofdaly View Post

Got a package in the mail today! my friends and family don't really get why I'd get excited about a headphone but I figure you guys would get it

 

congrats!

i look forward to seeing you update your dog's picture so that it is wearing the latest and greatest phones (i.e. 009s)!

post #1736 of 4001
Haha yeah I've had the same avatar pic since I joined, I'm probably due for an update
post #1737 of 4001

Quick technical question for the group - anyone see a problem with buying a second-hand pair of Stax, which has been in storage for several years? Storage would be a good thing for dynamic headphones but is there anything I should be on the lookout for with stats? 

post #1738 of 4001
Quote:
Originally Posted by project86 View Post
 

Quick technical question for the group - anyone see a problem with buying a second-hand pair of Stax, which has been in storage for several years? Storage would be a good thing for dynamic headphones but is there anything I should be on the lookout for with stats? 

 

Storage isn't necessarily good for stats, as this could lead to the dreaded channel imbalance (especially if they were left charged before putting into storage - the good thing to do is touch the pins of the connector after unplugging to discharge it quickly). There's nothing you can really be on the lookout for short of testing them and seeing if they are channel balanced.

post #1739 of 4001
Quote:
Originally Posted by dude_500 View Post
 

 

Storage isn't necessarily good for stats, as this could lead to the dreaded channel imbalance (especially if they were left charged before putting into storage - the good thing to do is touch the pins of the connector after unplugging to discharge it quickly). There's nothing you can really be on the lookout for short of testing them and seeing if they are channel balanced.

 

Thanks.

 

The Stax in question is an SR-4070 so A) it's rare and I don't want to pass it over without a good reason, and B) it isn't some 30 year old model.

 

The seller tested and found no channel imbalance, and the physical condition is quite good... so is there anything else I should worry about?

post #1740 of 4001
Quote:
Originally Posted by project86 View Post
 

Quick technical question for the group - anyone see a problem with buying a second-hand pair of Stax, which has been in storage for several years? Storage would be a good thing for dynamic headphones but is there anything I should be on the lookout for with stats? 


I had my LNB and srd7/SB stored for more than 20 years and had no issues when I got them back out, just matters how they are stored as was said above.  Is definitely worth looking into the set you are talking about.

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