> Plugging an audio cable between two devices that are powered by AC can
> put a lot of stress on opamps, whose inputs can sometimes be almost
> directly connected to the input jack.
>
> Is there a device that is preferred for clamping audio inputs, like a
> bidirectional surge absorber is used for power input, but suitable for
> this application?
>
> A reasonable amount of capacitance can be tolerated, say up to 100 pF.
>
> Thanks,
>
> Bob

Capacitively couple it on both the ground and "hot" sides to avoid common=20
mode problems?

-- Bob Ammerman
RAm Systems

--=20
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