EAR 834P Impedance?

I asked the manufacturer for a definitive answer to the question.

From Dan Meinwald of EAR USA:
Many people speak without the knowledge to to back up their statements.

I don't know if Dan's comments were directed at Stereophile or someone else, but the fact remains that EAR doesn't provide an official impedance spec for the 834P in their product brochure or on their website. Stereophile took the time to measure these things in 1997. Their instruments saw an input impedance of 515 ohms and an output impedance between 524-538 ohms. Perhaps the newer version of the 834P has different values. Unless Dan can clear up this confusion, I'll side with instruments and methods that can be repeated and verified. I don't mean to stir up controversy, but if we can't rely on independent analysis of equipment, there's no point in discussing this.

Dan was referring to all of the (mis)information that is out there. I experimented with my K & K Premium SUT and when loaded @ 122 ohm the frequency balance it produced when plugged into the 834P was VERY similar to what I heard with the EAR in MC mode. I experimented with various other loading and that loading was by far the most similar to that of the stock EAR transformers. This lends credence to Dan's information on the EAR's MC loading.

I'll but my faith in my EARs and Dan. If you want to put yours in Stereophile that's certainly you prerogative.

Did Dan design the EAR 834P?

Mingles: my humble thought exactly.