>> I think so. Also ribbon microphones are among the best dynamic
>> microphones for similar reasons. But you can easily buy a better
>> condenser mike than a ribbon mike for the same money.
>
> Would you say that a speaker used as a microphone would be more
> sensitive than a conventional microphone?  The speaker has a greater
> collecting area so, if you were looking to detect really faint sounds,
> would a speaker-mic be the way to go?
>
>  Heh, that argument make sense? Debbie :)

I do not think so. The speaker has much more damping than the microphone.

Everyone has used stereo headphones as microphones in a pinch, at least
once. The experience is enlightening (or endarkening) even if the
headphones are of top quality and relatively high impedance (can be 200
ohms or more). Speakers microphones do not make. A $150 headphone driver
used as a mike will sound muffled and very unnatural with too much bass
response. Membrane mass, damping etc all play a role. Sensitivity is low
(even for drivers rated 110 dB/W and above). A $10 dynamic microphone will
outperform it ...

Peter

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