Do Audio Experience Symphonies leak DC current?

I have spke to Katchup privately, but i'll share my responce here as well.

I have the Audio Experience Symphonies preamp and a McCormack DNA-1 power amp. The DNA goes into protection mode a lot...sometimes when I turn on other appliances (vacume, TV), other times it just goes off randomly.

I've been racking my brain trying to figure out why...pehaps this is the cause.
I will email mr. McCormack to see if this leakage would case the protection to kick on.

A search will also turn up Krell amp protection circut problems with BAT pre-amps.

Dave

I emailed YS audio about the potential problem. Hope I get a response.

I have this preamp which by the way is a very nice sounding unit. It appears to put out small amounts of dc. When I measure the dc at the output of my B&K amp it is stable at 4mv. When I hook up the pre to the amp and measure at the amp out the dc measurement walks around the zero point up to about 60mv + and - and does not stabilize at any time. This is still a low total dc out and does not seem to affect the overall sound quality. It would seem the preamp is outputing small and variable dc pulses which I am sure would trigger some amps protection circuitry.