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The Stax Thread III - Page 33

post #481 of 3445

There are plenty of people buying 009's, so priced proportionately I think it would sell, if it sounds good of course.  

 

And with the depressed yen they can offer a lot of amp for the dollar.  Anyway, just speculating of course, so nice to think they might rock something interesting!

post #482 of 3445

Well it is impossible to build the T2 at this point without a major redesign, too many crucial parts are out of production and there are no replacements.  Then we have the sheer madness of the design and that Stax lost money on each and every one of them back in 1994 at 360kYen.  That product also wasn't complete as the T2 should never have seen the light of day in that setup.  None of them will age well and the transformers in every last one will burn up eventually. 

 

On top if this we have the small issue that between the ECC99 and the EL34 there are pretty much no good tubes to use for this role. 

post #483 of 3445
Quote:
Originally Posted by spritzer View Post

Well it is impossible to build the T2 at this point without a major redesign, too many crucial parts are out of production and there are no replacements.  Then we have the sheer madness of the design and that Stax lost money on each and every one of them back in 1994 at 360kYen.  That product also wasn't complete as the T2 should never have seen the light of day in that setup.  None of them will age well and the transformers in every last one will burn up eventually. 

On top if this we have the small issue that between the ECC99 and the EL34 there are pretty much no good tubes to use for this role. 

Hi Brigir:

Didn't the original Stax T-2s have long term reliability issues that have been "fixed" with Kevin's DIY version?
post #484 of 3445

My understanding is the Kevin Gilmore redesigned the psu (with the original being severely undersized) and it is only the amp section that is essentially the same as the original, just laid out differently. But Spritzer (or KG) is better positioned to confirm.

post #485 of 3445

amplifier identical to the original. board layout and thermal design very different.

 

original power supply was undersized and unregulated. In fact all stax electrostatic

amplifiers other than the srm300 have unregulated power supplies.

My power supply has all 5 high voltage supplies and the bias supply fully regulated.

plus 2 regulated low voltage power supplies.

 

Parts are still available to build more, but lots of fake parts out there.

Another chassis run is in progress, I am not doing it.

post #486 of 3445
Quote:
Originally Posted by georgep View Post
 

My understanding is the Kevin Gilmore redesigned the psu (with the original being severely undersized) and it is only the amp section that is essentially the same as the original, just laid out differently. But Spritzer (or KG) is better positioned to confirm.

 

 

Quote:

Originally Posted by kevin gilmore View Post
 

amplifier identical to the original. board layout and thermal design very different.

 

original power supply was undersized and unregulated. In fact all stax electrostatic

amplifiers other than the srm300 have unregulated power supplies.

My power supply has all 5 high voltage supplies and the bias supply fully regulated.

plus 2 regulated low voltage power supplies.

 

Parts are still available to build more, but lots of fake parts out there.

Another chassis run is in progress, I am not doing it.

Thanks guys for the confirmation...that would explain the better long term reliability.

post #487 of 3445
Hi everyboyy here, I have been reading almost all the thread (the 1600 pages previous one) but I have not found the answer to my question, so I am now asking to you expert.
I have an SRS-202II and now I have bought a new SRM -323s.
Which Headphone would pair better with it: the 202 that I already have or some other like 307, 407 (is the 507 is too bright with 323s) or some other?
I hope that Spitzer and other expert here would help me in choosing.smily_headphones1.gif
post #488 of 3445
Quote:
Originally Posted by kevin gilmore View Post
 

amplifier identical to the original. board layout and thermal design very different.

 

original power supply was undersized and unregulated. In fact all stax electrostatic

amplifiers other than the srm300 have unregulated power supplies.

My power supply has all 5 high voltage supplies and the bias supply fully regulated.

plus 2 regulated low voltage power supplies.

 

Parts are still available to build more, but lots of fake parts out there.

Another chassis run is in progress, I am not doing it.

 

That pretty much covers it.  We still have parts to build DIY units but for a commercial product then that is not good enough. 

 

My main issues with the SRM-T2, having lived with it for a few months was the annoying hum ever present and how hot it ran.  The DIY one isn't exactly cool but at least it tries to get the heat away from sensitive parts but not the SRM-T2. 

post #489 of 3445
Quote:
Originally Posted by Pier Paolo View Post

Hi everyboyy here, I have been reading almost all the thread (the 1600 pages previous one) but I have not found the answer to my question, so I am now asking to you expert.
I have an SRS-202II and now I have bought a new SRM -323s.
Which Headphone would pair better with it: the 202 that I already have or some other like 307, 407 (is the 507 is too bright with 323s) or some other?
I hope that Spitzer and other expert here would help me in choosing.smily_headphones1.gif

 

I would just pair the 202 with it. From my experience they sound even better with a proper amp and may be all that you need.

post #490 of 3445

Thanks Graben. it would be perfect, but If I would buy a second one?

post #491 of 3445
Quote:
Originally Posted by kevin gilmore View Post
In fact all stax electrostatic

amplifiers other than the srm300 have unregulated power supplies.

Wow, that amp is cute! I like that it also functions as a headphone stand. Why did they abandon that tower design?

post #492 of 3445

Heat dissipation is a problem in that chassis design.  They did make a prototype SRM-353S though which looked awesome...

post #493 of 3445

Dear Forum,

 

I am asking if there anyone who knows what is the main difference between these Stax amplifiers? (I mean in their circuits?)

 

SRM T1 or T1s

 

and the

 

SRM 600 LE or without LE

 

Thank your for your answer!

post #494 of 3445
Ecc99 vs 6cg7

Otherwise identical
post #495 of 3445
Quote:
Originally Posted by Pier Paolo View Post

Hi everyboyy here, I have been reading almost all the thread (the 1600 pages previous one) but I have not found the answer to my question, so I am now asking to you expert.
I have an SRS-202II and now I have bought a new SRM -323s.
Which Headphone would pair better with it: the 202 that I already have or some other like 307, 407 (is the 507 is too bright with 323s) or some other?
I hope that Spitzer and other expert here would help me in choosing.smily_headphones1.gif

Any other contribute?
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