Would there be any advantage of introducing an AC line filter at the 950 power source? Is there any chance that would help? The only thing is that it's a hiss not a buzz, the buzz being more indicative of a power issue. Is it worth trying?

Also, is EVERYONE having this "issue"? Is it the norm?

please say 'no'...
please say 'no'...
please say 'no'...

-JPancake