I'm thinking of getting an Electro-Voice RE20 mic and so I was looking at an online 'Users' Reviews' page for the RE20. An owner wrote that in a small flat you can use the mic with a fair amount of gain and not hear the fridge or the people outside unlike a condenser. Can that be true?
First of all I thought that it was simply that dynamics don't put out as much signal as condensers, hence you don't hear the fridge - but the guy did say this was using high gain. Maybe he's comparing a condensor in omni mode or hyper-cardioid to an RE20 in cardioid.
If the RE20 is genuinely good at rejecting background noise in a poorly sound-proofed studio, then that would be a boon for me as my Mumbai flat is a lot noisier than the Singapore one was - but it sounds too good to be true.
You live. You learn.