Ribbon Tweeter Resonant Frequency

DamageG · 12th February 2008, 06:41 AM

A sincere thank you to all who participate in the discussions. I have really learned a lot. I'm an electrical engineer with a background in switching power supplies, audio amplifiers and analog design. And have recently been bitten by the DI speaker bug.

I'd like to build a long ribbon tweeter for a near field line source. And want to cross over at about 1.4kHz.

So my question is, how do you determine the resonant frequency of the tweeter? I would think that it is only based on the density of the foil? And if you have active EQ, can you run below resonance?

Best regards,
Gregg Stock

ABJensen · 12th February 2008, 10:15 AM

The resonans frequency is very low on a ribbon.below 20hz.You can offcourse not EQ too below that

DamageG · 14th February 2008, 05:30 AM

Thank you for the feedback.

If the resonance is very low, then I guess what I'm looking for is the low frequency corner.

So for a ribbon mounted on an infinite baffle, what determines the minus 3db frequency of a ribbon?

12th February 2008, 06:41 AM	#1
DamageG diyAudio Member Join Date: Jan 2006 Location: So. Cal	Ribbon Tweeter Resonant Frequency A sincere thank you to all who participate in the discussions. I have really learned a lot. I'm an electrical engineer with a background in switching power supplies, audio amplifiers and analog design. And have recently been bitten by the DI speaker bug. I'd like to build a long ribbon tweeter for a near field line source. And want to cross over at about 1.4kHz. So my question is, how do you determine the resonant frequency of the tweeter? I would think that it is only based on the density of the foil? And if you have active EQ, can you run below resonance? Best regards, Gregg Stock

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12th February 2008, 10:15 AM	#2
ABJensen diyAudio Member Join Date: Mar 2005 Location: copenhagen	The resonans frequency is very low on a ribbon.below 20hz.You can offcourse not EQ too below that

14th February 2008, 05:30 AM	#3
DamageG diyAudio Member Join Date: Jan 2006 Location: So. Cal	Thank you for the feedback. If the resonance is very low, then I guess what I'm looking for is the low frequency corner. So for a ribbon mounted on an infinite baffle, what determines the minus 3db frequency of a ribbon?

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