https://audiouniversityonline.com/au...terface-setup/

Engage Phantom Power (If Needed)
The condenser microphone needs phantom power, but the SM58 doesn’t need phantom power.
There is only one switch on the 2i2 that turns on phantom power to both inputs, but don’t worry – phantom power won’t damage a dynamic microphone like the SM58.
Before recording a microphone, make sure to turn the ‘Monitor’ knob all the way down to prevent a feedback loop from forming between the microphone and your speakers. You’ll want to use headphones for this step.

Ik kan me niet voorstellen dat er op het “jack” deel spanning komt te staan.

Misschien even de filmpjes kijken?