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RE: "Small" is relative

Posted by BobH (A) on March 22, 2015 at 09:43:37

In Reply to: "Small" is relative posted by genungo on March 22, 2015 at 06:16:11:

Thanks, this is what I am looking for, although my physics is rusty.
Sound pressure level is basically force, right? Is that why larger woofers produce lower bass, because the larger cones produce more force against the volume of the air in the room? By analogy, the "microdrivers" in IEMs have only to produce that force into the small volume of the ear cannal with a well fit IEM. Correct?

The second question was what the mechanism is of the "microdrivers". Any idea how that is done? The images on the Shure site show multiple layers of presumably silicon. Are these small etched panels that move the air? I cannot find any reference to this on the web except MEMS which don't appear to be in production yet.

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