The Stax thread (New)

[catscratch]

Quote:

Originally Posted by slwiser /img/forum/go_quote.gif With the clarity and precision of what I am hearing it makes me wonder if the rest of my equipment train is capable of providing what the Omega can give me? So until I could listen to a set in my system I probably never spring for that kind of expense.

Local US dealers can send you a demo pair to try out in your system, so you can make up your mind.

The O2 definitely needs a high-resolution source, and if its resolution exceeds your source it will start picking up all sorts of nasty artifacts. Note, though, that it will still sound good. It will sound good on most good sources as long as its drive requirements are met (i.e. with a Blue Hawaii, KGSS, or SRD-7 Pro/good speaker amp). Crap sources are of course another matter but I doubt that applies for your rig.

 

[Faust2D]

Quote:

Originally Posted by WilCox /img/forum/go_quote.gif Unfortunately, the picture link is now broken, but Kevin's portable (transportable?) system has to be one of the best! http://www.head-fi.org/forums/f15/wh....html#post7291

Enjoy!

 

[ericj]

In the interest of getting some use out of them, I've extracted the transformers from my worthless 220v Koss E.9 energizer.

The primary on these has a DC resistance of 1.0 ohm. The secondary is 5kohm with a tap at about 2.6kohms. This isn't an abberation - both transformers read this way. Spritzer has stated that his Koss transformers lacked a center tap, but i think this is probably close enough to the center.

My general idea here is to build something similar to an SRD-7 out of them.

Obviously the zobel network on the primary will necessarily be different than the Stax schematic, and maybe different from the Koss schematic as well (I'll just have to figure that out), but I can at least use a stax-style bias supply. No self-bias option, of course, as i intend to embed the whole works in the same enclosure as a solid state amplifier. Just to see if it can work and sound good.

Any thoughts? I forget how to calculate the step-up ratio of the transformer based on the DC resistance. I can also hook them up to an inductance meter if need be.

 

[slwiser]

Quote:

Originally Posted by catscratch /img/forum/go_quote.gif Local US dealers can send you a demo pair to try out in your system, so you can make up your mind.

Actually never thought of that... I will keep this in mine. Thanks

 

[scompton]

Quote:

Originally Posted by slwiser /img/forum/go_quote.gif Actually never thought of that... I will keep this in mine. Thanks

Deja Vu Audio in McLean is an authorized dealer. If you've never been there, it's worth a trip.

Deja Vu Audio: dealer of the high-end audio products and related products.

 

[AudioCats]

Quote:

Originally Posted by Faust2D /img/forum/go_quote.gif Enjoy!

Goodness

..... Is that PCDP modded? I am modding a D9 for my 001 system, (Auri output caps hiding in the battery compartment, external battery box, shared with the 001 amp)

 

[Lornecherry]

...would you mind going over the stuff in that portable kit...the big question how well will Omegas or Lambdas work with the 001 amp??

What else is stacked in your Stax sack?

 

[AudioCats]

I would guess the 001 amp can't drive the Lambda's, a gamma pro or SR-X pro maybe (tested with my ESP950, the sound was too quiet and too mellow)

 

[krmathis]

Quote:

Originally Posted by WilCox /img/forum/go_quote.gif Unfortunately, the picture link is now broken, but Kevin's portable (transportable?) system has to be one of the best! http://www.head-fi.org/forums/f15/wh....html#post7291

Yeah, Kevin's once had a really nice "portable" rig.

[size=xx-small]Kevin Gilmore's Omega II rig from some years back.
* Sony d-ej01
* Stax SRM-212
* Stax SR-007
* 12 volt 7 amp-hour battery[/size]

 

[abs@nilenet.com]

FYI, that CD player looks like a D-777 and is definitely not a D-EJ01.

Happy Listening!

Quote:

Originally Posted by krmathis /img/forum/go_quote.gif Yeah, Kevin's once had a really nice "portable" rig. [size=xx-small]Kevin Gilmore's Omega II rig from some years back. * Sony d-ej01 * Stax SRM-212 * Stax SR-007 * 12 volt 7 amp-hour battery[/size]

 

[krmathis]

Quote:

Originally Posted by abs@nilenet.com /img/forum/go_quote.gif FYI, that CD player looks like a D-777 and is definitely not a D-EJ01. Happy Listening!

I guess you're right.
I simply misinterpreted Kevin's text, as he state that the picture show his older player. Whatever it is...

Quote:

Originally Posted by kevin gilmore /img/forum/go_quote.gif portable: sony d-ej01 stax omega2's with srm-212 (or my portable drive box) and a 12 volt 7 amphour battery. runs about 8 to 9 hours. Yes i really do this... this is a picture with the older player.

 

[Elephas]

Quote:

Originally Posted by slwiser /img/forum/go_quote.gif With the clarity and precision of what I am hearing it makes me wonder if the rest of my equipment train is capable of providing what the Omega can give me? So until I could listen to a set in my system I probably never spring for that kind of expense.

Are you still using a Lavry DA10?

I still have a DA10. I think it's a good source and it would perform OK in an O2 (I assume you mean Omega 2, not SR-Omega) system. A better source will be... better, though.

Two of the reasons I like electrostats are clarity and precision. Details, notes separation, imaging and soundstage coherence are the O2's strengths. I also think some other elements such as extension, bass quantity and quality, smoothness and liquidity are its strengths. I consider the slightly dark tonality, a small headstage and relatively small virtual soundstage, some lack of air, and an unexceptional midrange its weaknesses. By unexceptional midrange, I mean compared to the R10 or other headphones with a reputation for superb midrange.

A better source will have more details as well as better clarity and precision. It will also be smoother and more liquid-sounding, without sacrificing those details. A higher degree of realism and greater immersiveness are also benefits.

 

[Elephas]

Quote:

Originally Posted by Vaughn /img/forum/go_quote.gif I have been listening to my new SRM-T1S and Lambda Signatures for the last couple of days(courtesy of our favorite Icelandic Head-fi-er ) and I can say unequivocally that the Sig's completely smash the SR-404's.

Quote:

Originally Posted by audiod /img/forum/go_quote.gif I was driving them with my SRM-T1W and SRM-007t with great results.

SRM-T1S and SRM-T1W!

I think everybody with an SRM-T1-type amp needs to hear it with an SR-Omega!

 

[slwiser]

Quote:

Originally Posted by Elephas /img/forum/go_quote.gif Are you still using a Lavry DA10? I still have a DA10. I think it's a good source and it would perform OK in an O2 (I assume you mean Omega 2, not SR-Omega) system. A better source will be... better, though. Two of the reasons I like electrostats are clarity and precision. Details, notes separation, imaging and soundstage coherence are the O2's strengths. I also think some other elements such as extension, bass quantity and quality, smoothness and liquidity are its strengths. I consider the slightly dark tonality, a small headstage and relatively small virtual soundstage, some lack of air, and an unexceptional midrange its weaknesses. By unexceptional midrange, I mean compared to the R10 or other headphones with a reputation for superb midrange. A better source will have more details as well as better clarity and precision. It will also be smoother and more liquid-sounding, without sacrificing those details. A higher degree of realism and greater immersiveness are also benefits.

Thanks for this comparison of Lavry's influence on the Omega 2. I think I will have to wait a while before moving up to it but it is in my future plans. We will see and having plans makes life more interesting.

 

[spritzer]

Quote:

Originally Posted by ericj /img/forum/go_quote.gif In the interest of getting some use out of them, I've extracted the transformers from my worthless 220v Koss E.9 energizer. The primary on these has a DC resistance of 1.0 ohm. The secondary is 5kohm with a tap at about 2.6kohms. This isn't an abberation - both transformers read this way. Spritzer has stated that his Koss transformers lacked a center tap, but i think this is probably close enough to the center. My general idea here is to build something similar to an SRD-7 out of them. Obviously the zobel network on the primary will necessarily be different than the Stax schematic, and maybe different from the Koss schematic as well (I'll just have to figure that out), but I can at least use a stax-style bias supply. No self-bias option, of course, as i intend to embed the whole works in the same enclosure as a solid state amplifier. Just to see if it can work and sound good. Any thoughts? I forget how to calculate the step-up ratio of the transformer based on the DC resistance. I can also hook them up to an inductance meter if need be.

The E.9 transformers had a CT but not the massive beasts found in the E.10.

Why don't you hook up a small AC wallwart to the transformers and see what they output?

Quote:

Originally Posted by Elephas /img/forum/go_quote.gif SRM-T1S and SRM-T1W! I think everybody with an SRM-T1-type amp needs to hear it with an SR-Omega!

Correction, everybody should first modify their T1's and then try the SR-Ω. I'm listening to this combo now as my APL was finally brought back to life yesterday with a new tube. Stunning to say the least but the Blue Hawaii is sooo much better.