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post #646 of 18422
I'm eager to get my Woo GES, and to compare it with an HEV90, an ES-1, an Aristaeus, an EA-6, and my EA-4, for driving an HE90. Wouldn't it be amazing if the GES and EA-6 actually do as well as the ES-1, HEV90, and Aristaeus? Little chance of that, but hope springs eternal.
post #647 of 18422
Quote:
Originally Posted by mikeg View Post
I'm eager to get my Woo GES, and to compare it with an HEV90, an ES-1, an Aristaeus, an EA-6, and my EA-4, for driving an HE90. Wouldn't it be amazing if the GES and EA-6 actually do as well as the ES-1, HEV90, and Aristaeus? Little chance of that, but hope springs eternal.
No harm in hoping and keeping your fingers crossed. I'll be interested to hear what you think of it, as well as any comparisons you make.
post #648 of 18422
Quote:
Originally Posted by derekbmn View Post
In my opinion the Lambda Pro is worth every penny of $500 or so. I can't think of any other can in that price range I would rather have and/or could out perform it. (IMO)
I agree, but only in mint-mint condition. The problem is when buying on eBay or Audiogon you may get stuck with junk. Been there-Done that.

AudioD
post #649 of 18422
Thread Starter 
Quote:
Originally Posted by spritzer View Post
Interesting. We really need another all tube electrostatic amp thats built like the Japanese do it. A Kondo electrostatic amp would be very cool
Bypass the output transformer of a Gakuoh and you're pretty much there.


Quote:
Originally Posted by mikeg View Post
I'm eager to get my Woo GES, and to compare it with an HEV90, an ES-1, an Aristaeus, an EA-6, and my EA-4, for driving an HE90. Wouldn't it be amazing if the GES and EA-6 actually do as well as the ES-1, HEV90, and Aristaeus? Little chance of that, but hope springs eternal.
From what I've been able to extrapolate, the ES1 and Aristaeus' big advantage lies primarily in parts quality rather than topology. I imagine Peter and Wei would be willing to use silver wire, boutique power transformers, etc if you were willing to pay for them.
post #650 of 18422
Quote:
Originally Posted by Carl View Post
Bypass the output transformer of a Gakuoh and you're pretty much there.

From what I've been able to extrapolate, the ES1 and Aristaeus' big advantage lies primarily in parts quality rather than topology. I imagine Peter and Wei would be willing to use silver wire, boutique power transformers, etc if you were willing to pay for them.
The Gakuoh should be a lot cheaper without the output trafo. Those custom made Tango's with silver secondaries aren't cheap. I wonder why none of the American amp makers use R-core transformers instead of the inferior torroids. This isn't about price at this point.

Both of the lower class amps could be giant killers if they were upgraded with some sense. Better coupling caps, wiring and rca jacks would go a long way.
post #651 of 18422
Quote:
Originally Posted by Carl View Post
From what I've been able to extrapolate, the ES1 and Aristaeus' big advantage lies primarily in parts quality rather than topology.
Both designers (Mikhail and Justin) use high quality parts, but I've talked to both of them about their designs, and topology does play a large role in the sound of their amps. Extrapolations such as yours, based on no first hand knowledge or experience with the products, are simply not worth posting. Generally speaking, blind, and in this case untrue, speculation does little to advance knowledge, and could mislead a reader who thought that you knew something about the products.
post #652 of 18422
Thread Starter 
Quote:
Originally Posted by Hirsch View Post
Both designers (Mikhail and Justin) use high quality parts, but I've talked to both of them about their designs, and topology does play a large role in the sound of their amps. Extrapolations such as yours, based on no first hand knowledge or experience with the products, are simply not worth posting. Generally speaking, blind, and in this case untrue, speculation does little to advance knowledge, and could mislead a reader who thought that you knew something about the products.
Yes but Peter's amps have nice (if straightforward) topologies too.

I may not be able to trace their circuit schematics in my sleep, but I do have a reasonable uderstanding about what makes these amps tick.
post #653 of 18422
I would offer that MY parts selection (as evidenced by my DIY - Millet, m³ x2, Blue Hawaii) would be quite a bit pricier than what Peter has chosen (stepped attenuator vs Blue Velvet for volume, as one example), but it is a cost / performance tradeoff. I even followed a Hirsch suggestion for the 6cg7, but something is still, well, just not quite right.

Am trying _REAL HARD_ (my best Samuel Jackson) to like the EA-6... but, I'm struggling. It simply cannot handle Tool (10,000 Days nor Lateralus)...
post #654 of 18422
Quote:
Originally Posted by pabbi1 View Post
I would offer that MY parts selection (as evidenced by my DIY - Millet, m³ x2, Blue Hawaii) would be quite a bit pricier than what Peter has chosen (stepped attenuator vs Blue Velvet for volume, as one example), but it is a cost / performance tradeoff. I even followed a Hirsch suggestion for the 6cg7, but something is still, well, just not quite right.

Am trying _REAL HARD_ (my best Samuel Jackson) to like the EA-6... but, I'm struggling. It simply cannot handle Tool (10,000 Days nor Lateralus)...
Has Peter sampled this music on an EA-6 in his shop, and encountered the same problem? Have you tried this music on one of Peter's lower cost stat amps (e.g., his EA-1)? What's peter's suggestion for resolving this problem? Has he offered any ideas? BTW, I've just sampled 10,000 days, and Lateralus, and they are very different from the kinds of music that I usually listen to (i.e., classical orchestral music). Since you mentioned that the EA-6 seems to have better resolution that the BH, how well do you think that it performs in comparison with an HEV90, an ES-1, and an Aristaeus, for such music? Also, why did you select the likes of 10,000 days, and Lateralus, for evaluating the EA-6's performance?
post #655 of 18422

Question .....

hello STAX owners, I soon will be joining you all with my first STAX in fact my first Electrostat ever.

I have an extremely "newbie" question: seems like the phone connector is like XLR or they are some special STAX format? I know they will work fine with STAX Amps, but what about all other amps. Is there some kind of adaptor I will need to plug into other amps?

is SR-007 very 'power hungry'? Will Lehmann Black Cube type of amp drive them ok? ... the STAX's Website is very poorly designed, I can't find any useful info there!


sigh, another 3 weeks of anxious waiting ....
post #656 of 18422
Stax use a different connector because the way that Stax headphones actually make sound is fundamentally different to most headphones. Trying to use them with the black cube would be like trying to plug a hoover into an AA battery. In theory theres a power source, its just not compatible.
post #657 of 18422
Quote:
Originally Posted by mikeg View Post
Has Peter sampled this music on an EA-6 in his shop, and encountered the same problem? Have you tried this music on one of Peter's lower cost stat amps (e.g., his EA-1)? What's peter's suggestion for resolving this problem? Has he offered any ideas? BTW, I've just sampled 10,000 days, and Lateralus, and they are very different from the kinds of music that I usually listen to (i.e., classical orchestral music). Since you mentioned that the EA-6 seems to have better resolution that the BH, how well do you think that it performs in comparison with an HEV90, an ES-1, and an Aristaeus, for such music? Also, why did you select the likes of 10,000 days, and Lateralus, for evaluating the EA-6's performance?

I have spent probably 10 hours on the phone with Peter over time discussing this design, MY TASTES, including gain requirements (MUST shake the pads off the phones), and explained in excruciating detail what I listen to. He understands this to a very intimate degree, and in excruciating detail. I have absolutely no idea as to how he tested, and to what degree, but this is REAL obvious, and will enlist some other indepentent observers to verify.

Tool is what I listen to almost daily, one or the other, along with a variety of other stuff (Jett - 'Shine On' and 'Get Born', B-52s, DEVO, The Who, etc), but I have to agree that this amp simply seems 'voiced' to classical, and just cannot handle compressed, distorted signal. This is not just an occasional observation - it makes the music almost unlistenable, and certainly less fun, almost stressful, thinking what this amp COULD be. The hints do not outweigh the obvious warts

Being that I am the PAYING customer, I can evaluate this amp with whatever I damn well please.

Previously, the amp would distort horribly at anything in the elactronic guitar band, chords or single notes... maybe a specific manufacturing defect (caused by the shipper), but now I'm getting some fuzzy static in a different range(s), but typically when there seems to be saturation.

No A/B testing against the BH just yet, mainly because I am running VERY familiar material through the EA-6, with _some_ excellent results. Jane's Addiction - "SuperHero' is, in fact, simply stunning. Alison Krauss 'New Favorite' is also stunning, especially the vocals, acoustic guitar and dobro...

Alex ( [ak]zip ) and I will meet (with others) to compare it against his ES-1 (that I have spent many an hour listening to) and 007t, as well as my Blue Hawaii, with the HE60 (x3), his OII (x2), his OI (x2) and perhaps the Koss 950.

Current bottom line: NOWHERE close to the Orpheus (that I have also spent a few hours listening to - HE90 and HEV90), but all other comparisons will wait until there are at least 3 others to INDEPENDENTLY write their impressions in a shootout thread - in the meantime, it's my duty to run through MY preferred playlists to determine if I can keep this amp (instead of the BH), ask Peter for a refund, or sell it to someone who ONLY listens to Classical / acoustic music. Having already worked (and reworked) this amp, the topology just looks to be a REALLY bad fit for me.

There - taking one for the team, but, I simply can't afford the time to continue working this design - 9 months is my limit.
post #658 of 18422
Quote:
Originally Posted by Duggeh View Post
Stax use a different connector because the way that Stax headphones actually make sound is fundamentally different to most headphones. Trying to use them with the black cube would be like trying to plug a hoover into an AA battery. In theory theres a power source, its just not compatible.
so then I will have to use STAX's own amps ? can these amps be used for other cans as well ?
post #659 of 18422
Quote:
Originally Posted by pabbi1 View Post
I have spent probably 10 hours on the phone with Peter over time discussing this design, MY TASTES, including gain requirements (MUST shake the pads off the phones), and explained in excruciating detail what I listen to. He understands this to a very intimate degree, and in excruciating detail. I have absolutely no idea as to how he tested, and to what degree, but this is REAL obvious, and will enlist some other indepentent observers to verify.

Tool is what I listen to almost daily, one or the other, along with a variety of other stuff (Jett - 'Shine On' and 'Get Born', B-52s, DEVO, The Who, etc), but I have to agree that this amp simply seems 'voiced' to classical, and just cannot handle compressed, distorted signal. This is not just an occasional observation - it makes the music almost unlistenable, and certainly less fun, almost stressful, thinking what this amp COULD be. The hints do not outweigh the obvious warts

Being that I am the PAYING customer, I can evaluate this amp with whatever I damn well please.

Previously, the amp would distort horribly at anything in the elactronic guitar band, chords or single notes... maybe a specific manufacturing defect (caused by the shipper), but now I'm getting some fuzzy static in a different range(s), but typically when there seems to be saturation.

No A/B testing against the BH just yet, mainly because I am running VERY familiar material through the EA-6, with _some_ excellent results. Jane's Addiction - "SuperHero' is, in fact, simply stunning. Alison Krauss 'New Favorite' is also stunning, especially the vocals, acoustic guitar and dobro...

Alex ( [ak]zip ) and I will meet (with others) to compare it against his ES-1 (that I have spent many an hour listening to) and 007t, as well as my Blue Hawaii, with the HE60 (x3), his OII (x2), his OI (x2) and perhaps the Koss 950.

Current bottom line: NOWHERE close to the Orpheus (that I have also spent a few hours listening to - HE90 and HEV90), but all other comparisons will wait until there are at least 3 others to INDEPENDENTLY write their impressions in a shootout thread - in the meantime, it's my duty to run through MY preferred playlists to determine if I can keep this amp (instead of the BH), ask Peter for a refund, or sell it to someone who ONLY listens to Classical / acoustic music. Having already worked (and reworked) this amp, the topology just looks to be a REALLY bad fit for me.

There - taking one for the team, but, I simply can't afford the time to continue working this design - 9 months is my limit.
I am really sorry for the difficulties that you've had with the EA-6. You've spent so much time already, in trying to make it work as satisfactorily as the BH, ES-1, stax amp., HEV90, etc., but without success. That's really sad. Can we assume that the distortion that occurs on the EA-6, when using the music that you've mentioned, and at the volumes that you've used, does not occur when using these other amps? I really look forward to the evaluation of these amps by several people, that's to come, and I hope that my forthcoming GES amp. turns out well in comparison to these amps.
post #660 of 18422
Is there a list of all vintage/new Stax earspeakers and driver units and which can go with which? If not, someone needs to make a guide.

Cheers,
Venio
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