Ground Loop Hum caused by hardwired AC MAINS FILTER - help needed

Hello,
I was wondering if anyone had had a negative result from installing a hardwired mains filter at the house main fuse box. I was considering a THOR DRM95-20A HIGH CAPACITY  AC MAINS FILTERED PROTECTION
https://www.thortechnologies.com.au/product/drm95-20a/

I was mainly referring to ground loop hum caused by having a device in the mains box. I do have a dedicated line for my audio. 

Thank you for any comments or advice.