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Julius Futterman's….

favorite product was his OTL headphone amplifier. I never heard it, but those who did were enchanted by it. Imagine an OTL headphone amp driving ESL headphones. You might search for one in the NYC area.

I am not sure, but I think Ralph has whipped up an OTL headphone amp or two in his day.

Yes, in other words, it's a match made in heaven, since headphones tend to have very high input impedance compared to loudspeakers of any type.


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