well, I for one would never think it would get rid of hum, and they do NOT advertise that whatsoever.
Not sure why anyone would even think such a thing.
Regarding "good surge protector," that is a different feature of this unit, and from what I have seen, most DJs using strip surge protectors are fooling themselves thinking it would even protect their equipment which I why I have never used one. A good surge protector is not cheap. There are many things that make a surge protector worth more than the basic one. Mainly, the amount of joules...
True...Something like this is legit in my book. https://www.amazon.com/APC-11-Outle...id=1549083316&sr=1-8&keywords=Surge+Protector
https://www.amazon.com/HOLSEM-Outle...9083316&sr=1-10&keywords=Surge+Protector&th=1
Or this one rated at 4,000 joules. This one looks nice, I might buy this one to replace the Monter unit I use now.