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Gaston said:so is the "bong"sound the actual tone of the resonant frequency of the speaker?
This is the basis for saying that speakers in series may be underdamped, right?speakerguy79 said:<snip>A resistor in series with the amplifier output would have the effect of lowering the damping factor by increasing the apparent output impedance<snip>
I've read the website but from what I gather the feedback coil is wound on top of the voice coil. What about the effects of magnetic coupling between the two coils?speakerguy79 said:Google Rythmik Audio for an example. They use a sensing coil wound on the voice coil former to provide a way to measure cone position and turn it into a servo system.
I don't think it will make any difference whether current or voltage control is used since the feedback will counteract any imperfections in either system.Accelerometers work too, the ACH-01 is a popular part that is available at Digikey (Velodyne makes accelerometer based subs). I've never seen a current drive setup with a feedback system around it though I don't think. Sounds like an interesting idea.
Do you mean a Leslie rotating speaker? No, I never played an electric organ.ericgibbs said:Have you ever constructed an home made speaker 'wobbulator'?
I bet 'agu' has.
audioguru said:When I was young I could hear all the ultrasonic burglar alarms in town.