Re: Not just hum
So wrong. Have you ever listened to speech radio on a HiFi with a proper Subwoofer attached?
Lots of near-subsonic rumble to be heard/felt when listened to on a half reasonable FM tuner.
And 1970s Philips or Grundig cassette recorders could very nicely capture deep street rumble from outside of the building, down to say 50Hz using the built in mic, as was audible on my old Sennheisers in those days.
Biting the hand that feeds IT
