The Zen Blades will be much quieter, if not completely quiet. Sounds like a typical 60 cycle hum issue that you're dealing with.
With my series wired Zen Blade bridge PU, I get a bit of notice going direct into my interface if I boost the levels. I’m sure the noise floor is pretty low and I’m gain staging things improperly, or should be using a DI box (cable straight into the interface/recorder). It’s very very quiet, but not dead silent. I doubt it’s 60 cycle hum, but I haven’t analyzed it with much effort.
