Question regarding rise time

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JimGore

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I am not too clued up on this at all, but a thought just crossed my mind:

I often see alot of discussion regarding the rise time of specific types of amplifiers and specifically transistors.  As I understand it in laymans terms, this is how quickly (and therefore accurately) the device can respond to a change in input signal change.  Is this correct?

Secondly, and this is the actual question I would like some info on:

How well do different speaker drivers perform in this measure?  Example:  What is the point of having a transistor that has a rise time of 0.001uS (thumb sucked figure) if an average driver has a rise time 100 times slower?  Are there any papers or studies you know of which will shed some light on this topic?

I imagine that the rise time of a driver has to do mainly with the following parameters:
1.  BL curve - the stronger the motor, the faster the rise time
2.  Moving mass - the lower the mass, the faster the rise time
3.  Damping - less damping should result in a faster rise time

If my thought process is correct, then a driver with a faster rise time will be more accurate in its reproduction of the original signal.  Also, I am thinking that HE drivers will have a faster rise time as compared to standard drivers?

Thanks,
Ian.
 
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