D'Appolito theory

Vivek · 22nd June 2004, 06:54 AM

Hi all,
I have been looking around for some theory to build a pair of MTM speakers but there does not seem to be a good site where design concepts are explained. On this forum, there is info but in bits an pieces.
Can anyone suggest a good website where I can start? I mean sites that explain about the driver placement on the baffle, how much spacing is needed, crossovers and related stuff. I will be grateful for any leads.

Thanks,
Vivek

docjoe · 22nd June 2004, 07:15 AM

hi
in the middle 80, the whole theory was explained in " the speaker builder" by Joseph D'Appolito
maybe you can see on "audioXpress.com" if they sell or upload these pages.

navin · 22nd June 2004, 08:19 AM

vivek,

that is right. SB 84-87 had all of teh original theory explained.

AR · 22nd June 2004, 08:37 AM

D'Appolito: "A Geometric Approach to Eliminating Lobing Error in Multiway Loudspeakers" Audio Eng. Society Preprint 2000, Convention 74, Sept. 1983.

Vivek · 22nd June 2004, 09:14 AM

But these books are not available in India, at least not in Bangalore. Maybe I have to study DIY projects and get ideas from them.

Vivek

navin · 22nd June 2004, 11:13 AM

hmm....let me see..... rajiv d'souza of lithos will have these books. ask him if he can send you a copy. give im my ref. remind him i had donated my entire library of audio books to him when he was starting out. i cant find his latest contact number but maybe google can help.

Vivek · 22nd June 2004, 11:37 AM

I will give it a shot. Thanks.
Vivek

GM · 22nd June 2004, 03:29 PM

This will give some insight: http://www.birotechnology.com/articles/VSTWLA.html

GM

rakeshln · 23rd June 2004, 04:14 AM

Hi..getting those books is almost impossible here. why dont u become an AES member..u can buy all those papers through AES published in their journals. GOTO www.aesindia.org or www.aes.org.

navin · 23rd June 2004, 05:29 AM

Rajiv is an AES member - atleast he was last time we met.

22nd June 2004, 06:54 AM	#1
Vivek diyAudio Member Join Date: Nov 2000 Location: Bangalore, India	D'Appolito theory Hi all, I have been looking around for some theory to build a pair of MTM speakers but there does not seem to be a good site where design concepts are explained. On this forum, there is info but in bits an pieces. Can anyone suggest a good website where I can start? I mean sites that explain about the driver placement on the baffle, how much spacing is needed, crossovers and related stuff. I will be grateful for any leads. Thanks, Vivek __________________ Thank God for DIY audio.

22nd June 2004, 07:15 AM	#2
docjoe diyAudio Member Join Date: Jun 2003 Location: Paris, France	hi in the middle 80, the whole theory was explained in " the speaker builder" by Joseph D'Appolito maybe you can see on "audioXpress.com" if they sell or upload these pages. __________________ docjoe.

22nd June 2004, 08:19 AM	#3
navin diyAudio Member Join Date: Jan 2002 Location: Mumbai (Bombay), India	vivek, that is right. SB 84-87 had all of teh original theory explained. __________________ ...still looking for the holy grail.

22nd June 2004, 09:14 AM	#5
Vivek diyAudio Member Join Date: Nov 2000 Location: Bangalore, India	But these books are not available in India, at least not in Bangalore. Maybe I have to study DIY projects and get ideas from them. Vivek __________________ Thank God for DIY audio.

22nd June 2004, 11:13 AM	#6
navin diyAudio Member Join Date: Jan 2002 Location: Mumbai (Bombay), India	hmm....let me see..... rajiv d'souza of lithos will have these books. ask him if he can send you a copy. give im my ref. remind him i had donated my entire library of audio books to him when he was starting out. i cant find his latest contact number but maybe google can help. __________________ ...still looking for the holy grail.


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22nd June 2004, 08:37 AM	#4
AR diyAudio Member Join Date: Jan 2002	D'Appolito: "A Geometric Approach to Eliminating Lobing Error in Multiway Loudspeakers" Audio Eng. Society Preprint 2000, Convention 74, Sept. 1983.

22nd June 2004, 11:37 AM	#7
Vivek diyAudio Member Join Date: Nov 2000 Location: Bangalore, India	I will give it a shot. Thanks. Vivek __________________ Thank God for DIY audio.

22nd June 2004, 03:29 PM	#8
GM diyAudio Member Join Date: Jun 2003 Location: Chamblee, Ga.	This will give some insight: http://www.birotechnology.com/articles/VSTWLA.html GM __________________ Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

23rd June 2004, 04:14 AM	#9
rakeshln diyAudio Member Join Date: May 2004 Location: Mumbai	Hi..getting those books is almost impossible here. why dont u become an AES member..u can buy all those papers through AES published in their journals. GOTO www.aesindia.org or www.aes.org.

23rd June 2004, 05:29 AM	#10
navin diyAudio Member Join Date: Jan 2002 Location: Mumbai (Bombay), India	Rajiv is an AES member - atleast he was last time we met. __________________ ...still looking for the holy grail.

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