“Silence is golden” unless you have two H9 pedals, one for the serial connections set in relay bypass (with the pre/post routing placed at the beginning and at the end of your analog drive section signal chain) one set for parallel use (pre routing in a line mixer before the amp post routing for the FX loop with DSP bypass ingaged, to avoid digital conversion and preserve effects tails)
I assume the bypass is common to both the Pre/Post routed signals, with an inevitable digital conversion stage in the pre routing path if the post is in Killdry mode set for parallel use.
