in a generator you have a constant 60hz, the frequency is dictated by the prime mover.... in the voice coil, the frequency is controlled by the source, the Cd, SACD, what ever it may be, and in the digital world, its a stepped DC, think of it like a constantly moving CRDM, the Digital-analong converters smooth the signal, basically a filter circuit. Actually the CRDM pretty much works the EXACT same way a voice coil does with the electro magnetic filed. but rather than the clamping force, you have the electro magnetic field, with a rare earth magnet behind it, for arguments sake when the electro magnet is + in respect to the rare earth magnet, it will "push similar poles" when it is - it will (pull dissimilar).. as it pushes and pulls it disrupts the air, creating noise...
now, i am assuming you still remember how CRDMS work :p
Last edited by dakkon; 07/04/10 03:52 PM.
