How to calculate baffle step?

henriksommer · 5th May 2004, 06:01 AM

Hi all,

What is the best method to calculate baffle step, and to design baffle step compensation? I'm working on 2 designs: One with 2 Peerless HDS 6,5" in a MTM configuration, and one with HDS 5" in a MTM configuration. The tweeter in both designs are SS 9500.

Thanks!

All the best,
Henrik

paulspencer · 5th May 2004, 06:24 AM

ESP has an article that describes it well

It includes a formula.

True Audio also has a helpful article with formulas

You may also find Baffle diffraction simulator or crossover simulator (which includes bafflestep) at the FRD consortium to be very helpful.

henriksommer · 5th May 2004, 06:34 AM

Thanks for the info, now its time to dig in and start reading!

Regards Henrik

Svante · 5th May 2004, 01:05 PM

You could try my little baffle step response calulator "The Edge".

henriksommer · 6th May 2004, 05:48 AM

Great application!!!

I'm a rookie speaker-designer, and applications like that are perfect, i.e. not complicated

, for my level of understanding. How do I make a calculation for designs with 2 woofers?

Regards,
Henrik

Svante · 6th May 2004, 02:41 PM

Quote:

Originally posted by henriksommer
Great application!!!

I'm a rookie speaker-designer, and applications like that are perfect, i.e. not complicated , for my level of understanding. How do I make a calculation for designs with 2 woofers?

Regards,
Henrik

Increase the "# of speakers" to 2

henriksommer · 6th May 2004, 05:10 PM

Hi Svante,

I can see that you can do that, but the application places the second driver in the corner of the baffle, and I have no way of specifying the exact location. To my understanding, because of that, the calculations are not correct. Is there any trick I'm unaware of?

Regards,
Henrik

Charles Hansen · 6th May 2004, 05:30 PM

I think you can drag the drivers around with a mouse, using "click-and-drag".

Svante · 6th May 2004, 05:52 PM

Well, Charles said it before I got to it.

BTW, you can drag the corners too if you want a strange shape for your baffle.

Ron E · 6th May 2004, 06:18 PM

If you have Excel 2000 and you want sonmething a little more feature rich, try:

http://www.pvconsultants.com/audio/d...ownloadbds.htm
from:
http://www.pvconsultants.com/audio/frdgroup.htm

Paul V's GUI's take some getting used to....

5th May 2004, 06:01 AM	#1
henriksommer diyAudio Member Join Date: Jan 2004 Location: Copenhagen	How to calculate baffle step? Hi all, What is the best method to calculate baffle step, and to design baffle step compensation? I'm working on 2 designs: One with 2 Peerless HDS 6,5" in a MTM configuration, and one with HDS 5" in a MTM configuration. The tweeter in both designs are SS 9500. Thanks! All the best, Henrik

5th May 2004, 06:24 AM	#2
paulspencer diyAudio Member Join Date: Sep 2003 Location: Melbourne, Australia	ESP has an article that describes it well It includes a formula. True Audio also has a helpful article with formulas You may also find Baffle diffraction simulator or crossover simulator (which includes bafflestep) at the FRD consortium to be very helpful. __________________ AUDIO BLOG \| Bass integration guide My work: www.redspade.com.au web design studio

5th May 2004, 01:05 PM	#4
Svante diyAudio Member Join Date: Feb 2004 Location: Stockholm	You could try my little baffle step response calulator "The Edge". __________________ Simulate loudspeakers: Basta! Simulate the baffle step: The Edge

6th May 2004, 05:52 PM	#9
Svante diyAudio Member Join Date: Feb 2004 Location: Stockholm	Well, Charles said it before I got to it. BTW, you can drag the corners too if you want a strange shape for your baffle. __________________ Simulate loudspeakers: Basta! Simulate the baffle step: The Edge

6th May 2004, 06:18 PM	#10
Ron E diyAudio Member Join Date: Jun 2002 Location: USA, MN	If you have Excel 2000 and you want sonmething a little more feature rich, try: http://www.pvconsultants.com/audio/d...ownloadbds.htm from: http://www.pvconsultants.com/audio/frdgroup.htm Paul V's GUI's take some getting used to.... __________________ Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works. --Carl Sagan Science is a way of thinking much more than it is a body of knowledge. --Carl Sagan


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

5th May 2004, 06:34 AM	#3
henriksommer diyAudio Member Join Date: Jan 2004 Location: Copenhagen	Thanks for the info, now its time to dig in and start reading! Regards Henrik

6th May 2004, 05:48 AM	#5
henriksommer diyAudio Member Join Date: Jan 2004 Location: Copenhagen	Great application!!! I'm a rookie speaker-designer, and applications like that are perfect, i.e. not complicated , for my level of understanding. How do I make a calculation for designs with 2 woofers? Regards, Henrik

6th May 2004, 05:10 PM	#7
henriksommer diyAudio Member Join Date: Jan 2004 Location: Copenhagen	Hi Svante, I can see that you can do that, but the application places the second driver in the corner of the baffle, and I have no way of specifying the exact location. To my understanding, because of that, the calculations are not correct. Is there any trick I'm unaware of? Regards, Henrik

6th May 2004, 05:30 PM	#8
Charles Hansen diyAudio Member Join Date: May 2003 Location: Colorado	I think you can drag the drivers around with a mouse, using "click-and-drag".

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