I'm looking to learn about Air Motion Transformer technology

Impedance on both are quite flat.

If you need to clutch at the shape of the impedance curve to call it a ribbon, while ignoring the impedance magnitude of the driver, and the transformer a true ribbon needs to be usable, and every other detail of the driver construction to be happy, please do.


Also, it’s "derivative", not "dirivative."

Yeah, if you ignore the shape, material, impedance. flow of current, source of opposing force and radiation pattern, I guess you are right, it’s a ribbon.

An AMT is not a ribbon.

In a ribbon the moving part is entirely conductive, and very low impedance so much that they usually require a matching transformer.

In an AMT the conductor is longer, much thinner and attached to a moving membrane which provides the actual moving surface area.  As a result the impedance is much more reasonable.

Further, AMT's have amazing power handling and linearity and lower distortion than most ribbons which tend to be delicate diva's by comparison.

Buy what you'd like!! :)

Best,

Erik

@tomic601

I just meant that relatively we overspend. Is a $2K tweeter with a $300 mid-woofer really a good balance?

P.S. - I am guilty of this myself. :)

I also want to point something out.


The attention we pay to tweeters, and the amount we pay for tweeters, is really out of proportion with the amount of sound that comes out of them, especially in a 3-way speaker, only about 3 ish octaves.


There’s a lot more to a speaker than having a magic tweet, especially in terms of the total energy output.


Of course, being a geek about tech is what this forum is for. :)

Hey there, I'm listening to some right now.

The potential is high, but not always realized. There are some damn awful sounding AMT speakers.

The one thing they all share is very low stored energy compared to dynamic tweets. However, their frequency response, and power handling can vary a great deal. The $2 Chinese units are not nearly as good as the top of the line European units. 
At the top end, AMT's are as good if not better than any other tweeter tech. At the low, they hurt.

Listen for yourself.
Best,
E