SDC vs LDC transient response

  • Thread starter Thread starter AzN1337c0d3r
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AzN1337c0d3r

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I've seen it written at many places[1] that SDCs by virtue of their lower-mass diaphragms have better transient response, since it takes less energy to move it.

What I don't understand is why this is. It seems that since sound is a wavefront, the larger diaphragm will capture more of that front energy, offsetting the additional mass of the diaphragm.

[1]Google "SDC transient response", third result down from prosoundweb.com. (Sorry I cannot post links since you apparently need 10 posts to do so)
 
makes sense to me. It takes more force to move a larger object. Try throwing a SDC on the snare some time. You'll get more crack than a poor neighborhood in the 1980's
 
JG96 said:
makes sense to me. It takes more force to move a larger object. Try throwing a SDC on the snare some time. You'll get more crack than a poor neighborhood in the 1980's
Click to expand...

Maybe I wasn't making myself clear. Sound is not a force, it's a pressure. Thus a diaphragm which is twice as large will have twice as much mass but the force on it will be twice as large.
 
I think it's more to do with the fact that a large diaphragm wobbles about all over the place and has lots of resonances etc, whereas a small diaphragm is so small and light it moves cleanly and uniformly
 
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