In some cases, hum is due to cheap or bad cables. A longer cable often pic up more hum then?the capsule.

Am So., 7. Juli 2024 um 10:53?Uhr schrieb Jerry Lee Marcel via <jerryleemarcel=[email protected]>:

[Quote]What I want to focus on is whether it would be advantageous to use an Audio isolation transformer. I also use the SimpleP48 circuit (I used it for two theater events at our school). But although it depends on the type of Audio interface used, there is a 60Hz hum in the recorded sound. I wonder if we can eliminate this by using an isolation transformer? [/Quote]
In most cases, hum is due to improper shielding of the capsule. Using a transformer? doesn't solve the issue.