Passive preamp question

Certain Hattor preamps also offer the options of passive operation or variable gain.

Down the rabbit hole you go!

No kidding!

Now is it logical to say impedance is dependent upon the attenuator and nothing else?

I've been looking at the Hattors for quite a while.

@thecarpathian Let's say you have a 10k attenuator. It could be a potentiometer, ladder or shunt type, but that attenuator will have a maximum output impedance of 10k, and the output impedance also varies based where you set the position of the attenuator (its logarithmic and not linear as well). The input impedance will be 10k and will not vary. So your sources would need to have low output impedance to work with a 10k attenuator. If you are looking at the Hattor preamp it would be worth talking to the designer. He builds the Kozmo attenuators which are very good. I have used them. He can give you an idea of what the output impedance values would be at various steps and help you select the best value based on your amps input impedance and source(s) output impedance.