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Question about Stax Lambda Pro Headphones

I have an old pair of these headphones, 1980s vintage. They are driven by an "ear speaker adaptor" which connects to the speaker terminals of a power amplifier. Question #1: Is it safe to use these with a tube amplifier ? In other words, when the selector is switched to phones, does it present a safe load for the amplifier ?
Question #2: Is there a tube headphone amplifier available that will drive these headphones ? Preferably one that can be driven from pre-amp outputs ?
mabonn

Showing 2 responses by mabonn

mabonn OP
181 posts
 
Thanks for your replies. It has been very helpful. I think I will stand pat !
mabonn OP
181 posts
 
Thanks for your responses. This is very helpful. BTW, my tube amp is an ARC VT100 Mk II, which does have output transformers. Also, the adaptor I have is the SRD7.
I am interested in the possibility of finding a good used tube headphone amp that is compatible with these phones. I guess that means that it compatible with the cable that connects the phones to the amp, and supplies the appropriate voltages to charge the electrostatic elements. If it has a volume control, all the better, so that I can drive it from the record outputs of the preamp. I am assuming that a good tube headphone amp would be a sonic upgrade from the adaptor I am using now (SRD7).
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