Quote Originally Posted by Simon_LDT View Post
Looks like the Quad has a 20k input impedance so ideally you'll want a 10k attenuator. If your sources are solid state they should be under 100ohm output impedance so you'lll be good to go with that. I know there are different opinions on this subject but imo the basics are that the pot you use needs to have a higher resistance than your source output and lower than the power amps input.

For example, mine currently is 47ohm for my source/s > 10k attenuator > 22k power amp.
Agreed - nothing wrong with your reasoning there.