[Scott Dorsey]

In article , Tobiah wrote:
It would seem that a dynamic mic has no self-noise, is that so?

No, it has resistive noise just because of the resistance of the coil.

Yet to get the same gain as a condenser one has to crank the gain
up much more on the dynamic, raising the noise level.

In general true.

Is it ever
the case that when recording soft sounds, one could get a lower
noise recording with a dynamic? Would it take a very expensive
preamp to achieve this?

Given a particular dynamic and a particular condenser microphone, this
might be the case.

But, the quietest microphones you'll find are going to be condenser
microphones such as the Sennheiser MKH-20.

I would guess that the output level of the dynamic would be
key. Any recommendations for a high-output omni dynamic for
$100-200?

All the good wideband omni dynamics are long gone because the market
for them is pretty small. You might like an RE-55, but they are fetching
far more on the used market than they ever cost new. Shure made some
similar dynamic omnis for the broadcast market that are equivalently
expensive.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."