(Service panel, bottom left.)
EDIT:
I ran a sine at -60dB through Satin and turned interface volume as well as the channel and master faders up something rotten. Hiss, Asperity and Bias all set to far left. Satin on or off, no perceivable difference.
With Hiss and Asperity down to -120, even without auto mute and Bias left, there's nothing to hear while Satin's input is silent.

