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Welcome! Need support, you got it. Or share your ideas and experiences.

RE: How do they work? ...

I see they offer, say, a 70Hz HP attenuator ... but isn't the amplifier's input impedance (Zin) relevant to the component values in the HP filter?

Or do you supply your amp's Zin to Harrison Labs and they then send you the appropriate FMOD for the specified Zin?


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