I asked some similar questions. I was curious as to the physics of whether the voice coil would react differently (physical and electrically) when it was not in a magnetic field. Good point.
Not that the resistance of the coil would change, but perhaps the damping, or how it reacts with an amp. The guys who developed it seemed like nice guys, but not too technical really. The main guy (I forget his name) claimed he'd "measured the heck out of it", and felt comfortable it wouldn't blow an amp or blow the speaker any more than a conventional speaker would. I think damping is less an issue as the volume goes down right ?
Smacks forehead... Variable magnetism in the speaker
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Re: Smacks forehead... Variable magnetism in the speaker
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My guess is damping factors become less an issue when the volume is lower. You'd want more damping at higher volume to control the cone, as the mass gets moving, but the lower the volume, the less movement. Again, how much does magnetic strength have to do with damping a cone ? Isn't that more a factor determined by the amp itself ? I'm thinking out loud too...
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Re: Smacks forehead... Variable magnetism in the speaker
The tone we love is the air pressure. We turn down the volume it sucks, you turn it up to much and it sucks. If its just right it sounds the best and that just right is the variable between each person. So the only solution is high quality headphones with volume knobs for each and every person.