Mechanisms of distortion in ribbon loudspeakers - Page 3

thadman · 26th July 2009, 02:36 PM

Quote:

Originally posted by a.wayne

This focus on diaphragm weight is not that big a deal as many would think. we are already dealing with a very light diaphragm , there are other bigger issues..

.. With the case of the Heil -T , the diaphragm is focused in such a heavy field i do believe mass is not it's Achilles heel , but more a problem of the reflective energy within such a fold ...

I do not believe mass is an issue at all for ribbon loudspeakers at any appreciable thickness. The figure we are interested in is the total mass of the system, which includes the mass of the air behind the driver...which pretty much means the mass of the ribbon is insignificant.

Telstar · 26th July 2009, 02:41 PM

Quote:

Originally posted by Mx
I like the idea! I'am also active crossover fan (analog and digital), so you have my attention. If you do that, please post something.

Probably I'll never attempt it because i cannot find an EFFICIENT heil or true ribbon for the task. Need 95+dB.
I'm now considering normal (above woofer) mounting of either of great heil/beyma/kithara, or going more extravagant with a Rubanoid.

Mx · 26th July 2009, 05:20 PM

@ Thadman Mass is issue when you're trying to design ribbon with greater sensitivity. And if having uniform field means less magnetic induction, then lighter membrane becomes a problem especially for quasi ribbons.
@Telstar You can also try Rall ribbons.
Best regards

a.wayne · 27th July 2009, 04:14 PM

Length to width ratio's play a significant role there more so than ribbon weight !

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26th July 2009, 05:20 PM	#23
Mx diyAudio Member Join Date: Dec 2004 Location: Belgrade	@ Thadman Mass is issue when you're trying to design ribbon with greater sensitivity. And if having uniform field means less magnetic induction, then lighter membrane becomes a problem especially for quasi ribbons. @Telstar You can also try Rall ribbons. Best regards

27th July 2009, 04:14 PM	#24
a.wayne diyAudio Member Join Date: May 2008 Location: Front Row Center	Length to width ratio's play a significant role there more so than ribbon weight !

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