My curiosity with all the gem stones, energy fields, special treated metal, cryogenic treated metal, and coatings... add in the scientic facts and measurements, why do people still fall for the stuff?
I think of the horror of foam core speakers with plywood for flooring, hot melt glue, and dollar store contact cement, lead/tin solder, and suspect NOS vacuum tubes I am using would make some of these people's heads pop.
I think of the horror of foam core speakers with plywood for flooring, hot melt glue, and dollar store contact cement, lead/tin solder, and suspect NOS vacuum tubes I am using would make some of these people's heads pop.
"We now have in this thread claims of speakers which 'work' down to DC.."
perhaps the model is named the Heaviside/Dirac Model 1.... you only hear anything at t=0
🙂
perhaps the model is named the Heaviside/Dirac Model 1.... you only hear anything at t=0
🙂
Not so, I have a set up where I can switch batteries in and out of the circuit, in 1.5V steps, my personal favourite is 4.5V in E minor, of course the tempo is a bit slow, you tend to get cramp in your calf tapping out the beat.🙂
I recon for full effect you need AC, I dislodged a signal input return connection on a chipamp a few weeks ago and got full volume buzz 😱
I think the missis has recovered now but the effect was interesting 😀
The word he used was "work." He contrasted this with "conventional" driver, which he claimed wouldn't be able to sustain a displacement with DC. They can as anyone else can prove to themselves.
Faraday wins again.
Faraday wins again.
It will go to its intended position DC position and non-linearities in magnetic motor and suspension will show up as distortion on a superimposed AC signal.
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It'll move until the elcectromotive force equals the spring force. As Vacuphile notes this is not linear so doubling the DC doesn't mean it moves twice as far - the suspension resistance is not linear and neither is the electromagnetic motor.
Now if you change the DC faster and faster, you'll find that the cone hasn't moved to where it would like to move, before you have reversed or changed the DC. But now it actually is AC of course....😉
Jan
SY thanks for the reply.
I want to see clearly.
As far as my vision blurred allow, conventional speaker has a restoring power, some kind of spring-power which comes from the spider and surround, if I'm correct, and it works against DC (or AC).
Ray's speakers do not have this, I saw that.
May be this is the difference?
Even electrostats need 'some kind of spring-power' to keep the foil centered, and electromechanical drivers need spring power to keep the voice coil centered in the air gap, so this must be an entirely new working principle. I am always open to new things, so let's hear more!
Btw, any driver would eject its vibrating diaphragm under DC if it weren't for spring power keeping it in check. In Dutch we call this kind of tale a monkey-sandwich story.
Btw, any driver would eject its vibrating diaphragm under DC if it weren't for spring power keeping it in check. In Dutch we call this kind of tale a monkey-sandwich story.
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If they don't have that, then how can the cone go back to the mid position after the DC is connected? Because I understand that is what he claims.
Jan
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