"Believe Nothing: no matter who said it, even if I have said it, except it agree with your own reason and common sense. Siddhartha Guatamo, the Buddha.
Apologies, in the entertainment side of things, a speaker/voicecoil/driver are all pert much the same thing, even if they are parts n peices of other things.
I recall reading of a three-coil speaker setup from waaaayback. No permanent magnet, so a coil for electromagnet. And another as voice coil. And a third either wound “backwards” or connected inverse phase with a pot to limit and adjust things… this was to try to cancel the low-freq. noise that escaped from the supply. “Hum-bucking” coil.
I admit that threw me. I am so used to drivers being the RF amps before the Final amp. to the antenna.
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Apologies, in the entertainment side of things, a speaker/voicecoil/driver are all pert much the same thing, even if they are parts n peices of other things.
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I recall reading of a three-coil speaker setup from waaaayback. No permanent magnet, so a coil for electromagnet. And another as voice coil. And a third either wound “backwards” or connected inverse phase with a pot to limit and adjust things… this was to try to cancel the low-freq. noise that escaped from the supply. “Hum-bucking” coil.
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