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Posts by kevin gilmore

or some of the he60 female jacks that eric343 had made a while ago with my new stax male plugs
The BHSE is an electrostatic amp. with at least 1500 Volts of output. If you don't understand what this means, then its probably not a good idea to try and hook up an hd800 with its 300 ohm impedance.   Unless you want to spend about $1k or more on a pair of suitable lundhall transformers plus another $1k for fancy silver foil capacitors. (I will probably build one anyway just for fun) (or find 2 pairs of esl63 transformers)   he60's  (not to be confused with...
contact corey @ www.solderworksaudio.com   builds  nice stuff. with an appropriate price.   done a couple of ss dynahi so far
I tried this many years ago, and nothing would prevent you from doing the same thing now. A srd7 or wee wired in reverse being driven from a BHSE (or really any other electrostatic amp) would generate a very low output impedance with more than sufficient power to drive any dynamic headphone you want to drive, he6 included.   With the appropriate transformer into 50 ohms on a BHSE you should be able to do about 8.5 watts pure class A. With slew rates far in...
so lets look at the schematic for a few minutes... http://www.jogis-roehrenbude.de/Verstaerker/PCL805-KH-Amp/Schaltung.jpg and of course the new one is balanced so its going to have twice the output impedance.   See that output capacitor, C26...  its outside the feedback loop. Now the lowest impedance electrolytic I have been able to find (and you probably not want to listen to it) is 130 milliohms. So that Ri is clearly immediately shot in OTL mode, which is the...
 I'm sorry, but this is absolutely impossible. Not even a 6c33 can possibly approach .01 ohm output impedance.No need to argue any further, you have your opinion, and I have mine.
Although it would be financially insane to do so, you could take a pair of krell master reference monoblocks and use them as a really great electrostatic amplifier. Although not the voltage champ compared to purpose designed electrostatic amps, they easily do 800+ VPSS. (+/-220V power supplies) And the fact that that ground is exactly in the middle makes adding a bias supply trivial.   I did try my fpb600 amp which is about 300 VPSS, and it did sound really nice....
someone gets it!
mine is a saeco xelsis   could not live without it. could not even get out the door in the morning without it.   krell >>T2 >>BHSE>KGSSHV
kingsound documentation is clearly wrong and probably for a reason. The measured bias on both the solid state and tube amp are the same as high bias stax, if not a little higher on the tube amp due to an unregulated power supply. Got the upgraded headphones back from drew and they are better than the original, but really about the same as the low end stax headphones.
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