Low damping factor but fast& high current SS amps?

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Kirkus, good point, I didn't occur to me that somebody might be confused if they picked the incorrect meaning of EMF.

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09-12-11: Herman.

Liguy, did you cut and paste that from a tech for dummies web site?

No, I did not. I tried to explain it in the most simple terms I could.

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Sorry

I just thought maybe you had since it is exactly the same wording in this Crown paper.

http://www.crownaudio.com/pdf/amps/damping_factor.pdf

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Zuio - your speaker, most likely, has inductor in series with the woofer. This inductor commonly has resistance of 0.08ohm (or more) making DF<100 no matter what amplifier you connect to it. Look in the middle of the table of the best solid core inductor I could find in Partsexpress:

http://www.parts-express.com/14-gauge-c-core-toroidal-inductors.cfm

It is very easy to have EMF without a magnetic field. Voltage without a path means no current. No current means no magnetic field.

The exact opposite of a dynamic system..... What do you call a charge without flow or motion? Static? I don't know.

And yes, it is a magnetic field that stops the motion......a magnetic field from a permanent magnet interacting with a magnetic field caused by a current flow in wire coil. To me, a 'chicken and egg' problem covered by the unified force called 'electromagnetism'.

You're right, though, no current flow = no magnetic field.....

I also like the idea of installing shorting wires on speakers being shipped. I think this is a good idea and will remember it if I ever ship speakers....even my panels! I've used a shorted speaker for another purpose. A simple 'thump' test to show the cone self damp when connected to a good, low resistance load.