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Possible Amps for the HE90 - Page 3

post #31 of 109
Quote:
Originally Posted by seeberg
Something about his last reply strikes me as odd- Qualia 010's fully driven out of an iPod? whatwhatWHAT? No way, I don't believe it. I imagine they can be driven loudly, but they won't sound anywhere near as good as they have the potential to.]

BTW, now that I think about it, wasn't there a flame war over there that spread over here that you were posting about? Something about ipoo? I remember that. Those guys that trickled over here were jerks, no offense.
,
Abe
It struck my Head-Fi-taught sensibilities as profoundly wrong too, lol. My reaction was almost exactly the same: whatwhatWHAT?!

Sorry @ all, thread-jack over
post #32 of 109
now if only someone could build a portable tube amp for he60/he90/Omega II/etc. That would be interesting, to say the least
,
Abe
post #33 of 109
I´ve run mine from a Stax SRD-7 transformer unit and a crappy bookshelf stereo, and then more recently using my iPod as a source.

The first was because the KGSS wasn´t finished, the second, as an experiment.

It´s really only something to do for ****s and giggles, though. Use real components, the HE90s make the extra investment much more audible than any other headphone I´ve heard. (example -- I find the differences between CABLES in my big rig to be more audible than the differences between portable amps, using my iPod and Etys.)
post #34 of 109
Quote:
Originally Posted by Covenant
Seriously though, i thought the Qualia demanded a monster of an amp to sound anywhere near its full potential, sounding hollow and "cavernous" when under-driven.
No, it always sounds hollow and cavernous.

When I listened to the 010 and the Detroit meet it was being driven by the Dynahi, an amp that KG originally designed specifically for the Qualia... luckily it also drives other headphones very well.
post #35 of 109
quote

now if only someone could build a portable tube amp for he60/he90/Omega II/etc

Easy to do especially if you are hulk hogan.

I can do the amp itself with a weight of about 3 pounds.
The single switcher would be about 4 pounds.

fillaments directly driven from the battery.

The 12 volt car battery would be about 50 pounds.
post #36 of 109
This is a great thread,especially for the lucky 18(or HE90 owners).I'd be up for a meet in Atlanta or thereabouts since I'm not really a big fan of flying,but I'd drive farther if I had to.Great suggestion Gene.Gary.
post #37 of 109
msjjr had a custom SET amp built for his electrostats (Omega II) by a Canadian outfit. Folks may want to contact him about his amp. It was VERY costly though, but he went all out, perhaps they could build one with the approximate sound but much lower cost.
post #38 of 109
Quote:
Originally Posted by philodox
No, it always sounds hollow and cavernous.
No they don't! I listened to two sets at the last MD meet, Stevio's and Hirsch's. With Stevio's the echo around the cavern was terrible while with Hirsch's there wasn't a bit of it. Only difference I could see was the sizes and adjustment, I think Stevio's was a small and Hirsch's was a medium or vice versa. I could really see where everyone has been coming from with these headphones, I got to hear both sides of the story...
post #39 of 109
Interesting... maybe I need a large then. The Qualia's at the Detroit meet were Mediums. So if the phenomena that you experience is size related, maybe they were too small for me? They certainly seemed to fit well once I got them positioned on my head properly.
post #40 of 109
BTW, Justin of headamp can also build an all-tube electrostat amp for the HE90. This will be a custom build, so may be more expensive than the KGBH.

Does anyone know how much the Singlepower amp is going to be?
post #41 of 109
Has anyone mentioned the Woo Audio electrostatic amp? I think it is based on the KGBH design and features stunning build quality in a point to point execution.

Sending them an email now.

gs
post #42 of 109
Quote:
Originally Posted by philodox
Interesting... maybe I need a large then. The Qualia's at the Detroit meet were Mediums. So if the phenomena that you experience is size related, maybe they were too small for me? They certainly seemed to fit well once I got them positioned on my head properly.
I thought Stevio's were a wonderful fit and they certainly did seem to be positioned properly but when I switched back and forth it was a repeatable night and day difference between the two units for me. Stevio's set on, the cavern appears, Hirsch's set on, nice clean sound. I didn't get the seal perfect on either so they were bass shy, but I wasn't too worried about that detail since I'm not really interested in purchaisng them.
post #43 of 109
In the past I've compared the KGSS without Black Gates versus the Blue Hawaii with Black Gates. I thought there was a noticeable difference in the smoothness and personally would be willing to pay the extra $1000.00 for it but I wasn't sure it was worth going tubed because it can be nice to leave the amp running all the time so you have an instant on amplifier and I hate to think of burning through those tubes without even actively listening to them. Do any of the tube amplifers have a means of taking the tubes off-line while still keeping the headphones charged?
post #44 of 109
Well you could always get the always-on bias supply for a Blue Hawaii so you won't have too drive the tubes all the time.
post #45 of 109
Quote:
Originally Posted by gpalmer
In the past I've compared the KGSS without Black Gates versus the Blue Hawaii with Black Gates. I thought there was a noticeable difference in the smoothness and personally would be willing to pay the extra $1000.00 for it but I wasn't sure it was worth going tubed because it can be nice to leave the amp running all the time so you have an instant on amplifier and I hate to think of burning through those tubes without even actively listening to them. Do any of the tube amplifers have a means of taking the tubes off-line while still keeping the headphones charged?
If you get an always ON bias circuit (extra $125 from Justin, I believe) the bias to the headphone stays ON even if you power down the amp. The thing is, the amp stays OFF -- only bias to the headphones remains. If you want to keep your amp ON anyways for best results, as is the case with the KGSS, the always ON bias circuit is useless.

For the KGBH, Justin may be able to rig you a circuit to turn OFF only the tubes and leave the headphone and the rest of the amp ON.
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