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Edited by bareyb - 3/6/13 at 2:37pm
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Well. You both beat me to it. I was just coming to post a link: http://www.head-direct.com/Products/?act=detail&id=104 
So. What happens if you don't have XLR connectors on your headphones? Do you use some kind of adapter?
Reterminate your headphone to XLR. Bad things will happen if you use TRS -> XLR Adapter and your amp doesn't have a common ground

Well. You are both faster than me. I was just coming to post a link: http://www.head-direct.com/Products/?act=detail&id=104 
So. What happens if you don't have XLR connectors on your headphones? Do you use some kind of adapter?

Thanks. I think that F3 is a very nice amp, and the bonus is that you can also use it to drive other phones. I drive the HD800 off it and really like that paring as well. I would consider the F1J. I have not heard it, but Preproman swears by it. That one is more of a current (rather than voltage amp) which, from what I understand, is good to have with the HE6. Still, the F3 is a very nice amp and I am also thinking of getting some nice efficient speakers to pair with it, when I move out of the city into a bigger place where I can have my man-cave. 
Just move to Gaithersburg or Germantown (I lived in Gaithersburg for a year before moving back to the West Coast). There's enough silence out where you can really enjoy things outside of DC. ;)
Thanks! Was looking for something that would make it easy to connect the HE-6s to speakers rather than have direct cables from the headphones to it.
I'm sure this question has been asked before.
Does anyone have any experience with Class-D ICEpower amplifier Technology amps?
I have used the W4S Class D ICE Power STI-500 with the HE-6, and it sounds fantastic. It is 250 WPC into 8 Ohms, I have used it with both the HE adaptor as well as directly to the speaker tap. It really has to be cranked up quite high, but the sound is very full bodied and detailed with good bass and dynamic range. Overall, it sounds great. I have not compared it to something like a First Watt or other low power Class A biased/Pure Class A amp, so can't comment on that. It definitely drives it well though. I have to say compared to my Hypex NCore class D, it is very, very similar with the edge going to the Hypex. That may not be a fair comparison though because the Hypex is fed by a $10K BAT tube pre-amp.

I have used the W4S Class D ICE Power STI-500 with the HE-6, and it sounds fantastic. It is 250 WPC into 8 Ohms, I have used it with both the HE adaptor as well as directly to the speaker tap. It really has to be cranked up quite high, but the sound is very full bodied and detailed with good bass and dynamic range. Overall, it sounds great. I have not compared it to something like a First Watt or other low power Class A biased/Pure Class A amp, so can't comment on that. It definitely drives it well though. I have to say compared to my Hypex NCore class D, it is very, very similar with the edge going to the Hypex. That may not be a fair comparison though because the Hypex is fed by a $10K BAT tube pre-amp.
So what you mean you have to crank it up quite high. Like the has a low gain? Or you don't think it has enough juice?

Any positives with SET amps like the 300B BA, the TTVJ 37A, The Pinnacle, the WA5, with w.out preampetc? From reading the reviews it sounds like the only tube amp to satisfy were McIntosh P-P. I am surprised no hum issues with McIntosh, very surprised as it has AC heat.
But there is good news for those without $3k for a McIntosh there is a modern DIY kit that et raves reviews for those who can't affor the brit amp: http://www.tubes4hifi.com/bob.htm#ST120
, I've heard nothing but good things about these modern McIntosh type amps much better quality than the Yaquin's people are buying.
But I'm of the opinion if I have to resort to P-P I will use solid state output, and the Lyr is a real bargain here.
So back to the original question, any chance of an SET powering the HE-6's or should I stick with the HE-500's(which are fantastic) and wait for the next Hifiman flags\ship?
I am using a 300b set built by local dealer and it is fine for jazz and classical that I listen to. I may try something with more power at some point but really it is just curiosity.
I am getting a Unison Research Simply Two speaker amplifier to audition with the HE-6.
I'm not very familiar with the impedance matching concept as this is my first speaker amplifier. Could anyone please tell me how much power I would be able to run through my HE-6, considering that the maximum output power is rated at 12W RMS per channel, and that the amplifier has two pairs of outputs, one 4 ohms and the other 8 ohms?
I ordered the HiFiMAN HE-adapter in case that's necessary. I also have HD800 I would like to test out with the Unison. Would that be any good?
Thanks for the help!
Not recommended for public consumption.


The resistors can be upgraded. The adapter is just a resistor network put in a (not so) pretty box afterall
Can anyone recommend any quality resistors to upgrade the HE6?