Exactly. An attenuator is configured as a voltage divider (I'm excluding special cases like L-pads which are pretty much loudspeaker-only), with the source impedance being at a maximum at 50% (-6dB). The two halves in parallel make a source resistance of 1/4 the potentiometer value.
OK I understand, I thought it might change depending on the implementation but the implementations are not that different then. I am using only balanced inputs and outputs. The spec has only one value for input impedance, and since it is passive, I guess there are four channels of attenuation (L+-, R+-). For the output impedance, the values for active gain are 75R for SE and 600R for balanced, how is the balanced output impedance defined ? is it the output impedance of each of L+, L-, R+, R- ?
Edit: Just wondered what these parallel R1//R2 values (R1+R2=10K) would be for dB attenuations, attached table if not mistaken.
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