Hi all,
I'm wondering about the old Sennheiser MKH-110 (omni). On paper it has an astonishing bass reponse, and I've heard it on some nature recordings and it appears to sound pretty good (but not as good as MKH20 in the same setting).

Apparently, it is unbalanced, so is this asking for trouble? Is this likely to pick up hum from everywhere, to say nothing about mobile phones? Is this a problem with older mics in general?

I know this was, and still is, a popular mic for certain measurement tasks, but I wonder if noise is the reason why its market value is extremely low.

Thanks
John