I drug out my beloved vintage Sansui intergrated amp today and hooked it up (feeling nostalgic I guess). I love this amp-lots of features and inputs with plenty of power (160w/ch) and great power meters.

The problem:
I hooked up the Maggies (4ohms) and the source (a tubed DAC) turned it on and got wonderful sound. But as soon as I touched the amp's chassis, after walking across the carpet, I got a static shock and the DAC instantly shut down. It happens when I'm charged up after walking across the carpet. If I touch something else before I touch the chassis it doesn't happen. Could this be an impedence problem (or am I blindly grasping at straws)? The amp's impedence switch has two settings: 8~16 ohm and 4~8 ohm. I had it set to 8~18.

Any electronics nerds (or even plain ol' nerds) out there with advice?


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