i am so confused.
sorry, but what you’re saying doesn’t make sense to me.

there’s no mixer or a button for mono on the cathedral.

bad cables wouldn’t sum up everything to mono either.

there is a center mix for some reason instead of distinct left and right channels.
which means it is not a “true stereo” pedal.

it worked when i changed the input to the higher ma input. thanks.

i bought the pedal used so it didnt come with an adaptor.
or else i would’ve looked at the adapter for the specs.