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Planar Speaker Asylum Welcome! Need support, you got it. Or share your ideas and experiences. |
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In Reply to: What is a 'fast' or 'slow' speaker? posted by SteveJewels on November 13, 2021 at 05:08:44:
> Cone woofers have significant mass and take more time (if only milliseconds or fractions of a millisecond more) to respond to the input voltage so the movement of the transducer cannot faithfully follow the input voltage.
It's more complicated than this. Traditional electrodynamical speakers also have wire wound dozens to hundreds of times around in the coil vs once or twice in a planar.
That means the force applied, at least in that location, can be much larger and well makes up for the significantly increased mass.
> Another phenomenon that affects transducer performance is that a it can apply more force to the air when it pushes than when it pulls.
atmospheric pressure is plenty to push back, normal audio is well in the highly linear regime. We're not getting supersonic shocks.
Simple mechanical analogies aren't so helpful--it's compressible fluid mechanics described by partial differential equations.
The impedance of the air matters more for a planar with a large area, light membrane and lower local force applied. Being in the linear regime the frequency (spatial and time) model analysis is more appropriate.
I think the psychoacoustic advantages of planars aren't found in simple mechanical ideas.
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Follow Ups
- RE: What is a 'fast' or 'slow' speaker? - DrChaos 10:55:26 11/16/21 (0)
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