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Posts posted by Tachikoma
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I'm just assuming that they're stock pads, got them with my LNS many years ago. There is a little decomposition, but its slight.
They're pleather too, but a much harder pleather. They seem a lot less permeable than the 303 pads.
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Since this thread isn't heading anywhere... I did a little comparison between three Lambda pads on the SR-303: Stock 303 pads, EP-507 pads and Lambda Nova Signature pads.
Stock 303 pads: Detailed and airy, but shouty. Yuck.
EP-507 pads: Hmm, the shout is gone. The sound has decent tonal weight now. Note: The EP-507 is actually a bit smaller than the other two.
Lambda Nova Signature pads: No shout here either, a bit more airy than the EP-507 pads. Favourite pads so far.
I wonder if the old "303/404 shout" is actually caused by Stax's pleather pads, rather than some inherent flaw in the driver. This could also explain why the 404 limited sounds better, as it uses leather pads instead of pleather.
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11 hours ago, thebrunx said:
aren't Topping known for being giant killers?
headphone killers maybe...
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On 11/9/2021 at 7:34 PM, JoaMat said:
It seems I’m running out of luck. SR-X9000 was the best headphone I’ve listened to only for a couple of days. You better keep your Omega, Andy.
Today the Stax have a terrible unbalance. Left side is more than 12dB lower then right side.
It was left side I opened, lifted inner stator and flipped as you see on picture a few posts above, removed plastic ring and easily lifted the diaphragm and gently held (didn't touched the membran) it in hand for a short while before I put it back. Could that be the reason or is just an unfortunate coincidence?
No worry though. It’s a calculated risk and mostly nothing bad happens.
If just had been something cheaper. 😭Oof. Given the magnitude of the imbalance, you may have changed (increased) the stator spacing when reassembling the driver. Just try assembling it again, but this time with some gentle pressure on the stators.
A small wound should not induce such a large imbalance, nor will a little foreign matter.
Another possibility is that the diaphragm was installed the wrong way... I'm not sure why it matters, but it sometimes does.- 3
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On 5/15/2021 at 9:04 PM, kevin gilmore said:
modifications would be required to lower the bias to 200v from 560.
I suppose it wouldn't be possible to make the bias voltage switchable?
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Holy shit. I think the EP507 was about half that price when I got my pair.
I've heard nice things about Vesper audio, they are probably the nicest looking 3rd party earpads you can get. Its that or the adapter I guess.
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https://www.headamp.com/products/headamp-pico this, perhaps? There are so many IEM-friendly options nowadays.
You don't actually need "negative gain", just a low gain option.
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On 1/1/2021 at 8:48 PM, spritzer said:
Those things are terrible, do not use them for a bias supply. They are noisy beyond belief.
Actually, if you adjust the voltage between GND and VCC to 800V or higher (the voltage between 200V and VCC/GND is around 500V at this point), the noise shifts beyond the human hearing range. Otherwise yes, they're really noisy. I'm using one for my transformer box - I can't hear any electrical or physical noise in its current configuration.
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Just buy this instead, much safer than working with mains.
https://www.aliexpress.com/item/1005001813099933.html?spm=a2g0o.productlist.0.0.41dab88epLfUCK&algo_pvid=27a95d58-360c-4aa9-943c-1a8140972e4b&algo_expid=27a95d58-360c-4aa9-943c-1a8140972e4b-43&btsid=0b0a557016094939405453680e2d15&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_
Use a regulated 5V supply, and take the voltage between VCC (or GND, but VCC works better for me) and 200V as the bias (credit to Sajeev Ranasinghe (Nectar)).
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48 minutes ago, zolkis said:
Terrible match IMHO. Also the Ether Voce pads.
The best pads I came across for the 007 were the 009 pads.
Actually they proved to be the best for all my headphones. I love those pads - especially after I removed the white reinforcing layer from the internal foam. Same mod works great for the 007 pads as well. Best generally usable ear pads in the industry IMHO (not counting special ones like Focal or Sony or Phenomenon). I have dozens of obsolete pads from other makers that I collected over time, but the 007 and 009 pads stand out. So if anything, I'd move *for* them, not away from them :).
There are a few other pads that allegedly work with the 007, like Kennerton Audio's ECL-01 and ECL-02, and ZMF pads (I know someone using ZMF auteur pads on a pair of 007s). Have you tried any of these pads?
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How does it compare to your direct drive amps? and do you have the Lundahl transformers in this unit?
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I have tried equalizing using EqualizerAPO based on reference FR charts. It transformed my KSE1500 into a $5 earbud.
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Will do
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Awesome, too bad I left Bangkok last week @chinsettawong: sorry for not visiting, have been busy practically every day for the last year.
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On 8/8/2019 at 3:28 AM, kevin gilmore said:
Ok, the stax mafia has spent quite a bit of time with the kse1500
first the headphones are 200v bias. The kingsound must have been modified to lower bias voltage otherwise these headphones will eventually pop.
yes the kse1500/kse1200 is an extremely low power classAB amplifier with significant distortion. But great battery life.
The kingsound is a chip amp driving transformers. Might actually sound better, but definitely not stax mafia approved.
A really good battery powered portable electrostatic amp is harder than you might think.
The stax d10 is another example that has issues.
A KSE1500 desktop amp would be great
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I can imagine having some use for wireless, and I also really like the fact that it has word clock in/outs that I could use with my Lynx AES16.
Any opinions on how they sound relative to each other would be nice, especially as an all-in-one solution.
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Does anyone happen to have any opinions about the ifi idsd pro, which is also a high-end (ish) wireless DAC? I'm interested in getting a good all-in-one solution that isn't enormous and heavy.
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..and somewhat drier to my ears. (take my impressions with grain of salt since I didn't have them side by side)
What electrolytic caps?
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Compared to the KSE1200/1500, I suppose it is a bargain
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Order someone.
In fairness, its understandable - time isn't free.
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14 hours ago, JimL said:
Or, if you're cheap like me, build the SRX Plus. Based on an original Stax circuit, with constant current loads and sources to set the operating conditions.
It still costs something like $2k to commission an SRX plus build though...
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The headphones will hold the charge for a little while even after you turn off the bias.
The Headcase Stax thread
in Headphones
Posted
Yep, they're dark brown-colored and hard, so they are most likely Lambda Signature pads.
Anyway, the EP-507 and Lambda Sig pads are fairly close, just a small tradeoff between airiness (Lambda Sig) and tonal density (EP-507).