are notch filters for compression driver sometimes helpful w. coax?

freddi · 4th November 2007, 02:54 PM

lets say a HF driver is runing on a coaxial -can putting a notch at ~driver/horn resonance help improve sonics? what works?

MarkMcK · 21st November 2007, 07:10 PM

If the output is up at driver/horn res, then a notch filter, properly set for magnitude will help.

Things get complicated, however, because the notch filter with change the apparent acoustic point of origin. I assume we are close to the crossover frequency the driver/horn res point. If so, then the change in the acoustic center for the driver/horn can change how the two drivers sum. The two together might get better or they might get worse.

Can you test to see what the system is doing now?

Mark

BHTX · 21st November 2007, 07:35 PM

If you're using a coaxial right now, I'd simply be curious to know what it is, and how you're using it.

4th November 2007, 02:54 PM	#1
freddi diyAudio Member Join Date: Aug 2005	are notch filters for compression driver sometimes helpful w. coax? lets say a HF driver is runing on a coaxial -can putting a notch at ~driver/horn resonance help improve sonics? what works?

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21st November 2007, 07:10 PM	#2
MarkMcK diyAudio Member Join Date: Aug 2003 Location: Ohio	If the output is up at driver/horn res, then a notch filter, properly set for magnitude will help. Things get complicated, however, because the notch filter with change the apparent acoustic point of origin. I assume we are close to the crossover frequency the driver/horn res point. If so, then the change in the acoustic center for the driver/horn can change how the two drivers sum. The two together might get better or they might get worse. Can you test to see what the system is doing now? Mark

21st November 2007, 07:35 PM	#3
BHTX diyAudio Member Join Date: Feb 2006	If you're using a coaxial right now, I'd simply be curious to know what it is, and how you're using it.

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