Loudspeaker primer for the novice

Stephen · 10th December 2003, 01:31 PM

I've created a website that explains loudspeaker theory with simplified language and illustrations. The address is:

www.cyberus.ca/~ec091357/HomePage.shtml

squidbait · 10th December 2003, 03:29 PM

I am most definitely a novice. I have read many articles on crossover networks, and am uterly confused.

When I look at these diagrams (such as the one at the end of the link above), I don't understand the "bridging" used between the positive and negative leads. I looks to me like the signal would pass straight through, and the "bridge" with the inductor and capacitor would have no effect.

Maybe someone can let me know what I am missing.

Sorry if I am using the wrong terminology.

7V · 10th December 2003, 03:48 PM

A very attractive web site with excellent pictures. Well done.

sreten · 10th December 2003, 04:09 PM

Very nice site with good basic stuff.

If your open to suggestions I think with such good quality
diagrams using a typical rather than simplified magnet structure
with the magnet ring and pole pieces would aid understanding.

/sreten.

sreten · 10th December 2003, 04:13 PM

SB :

The diagram may be confusing you with its central earth,
the wiring is in paralell, not bridged, top and bottom are
poth positive.

/sreten.

Stephen · 10th December 2003, 05:24 PM

Hello SB

Thank-you for your reply. The diagram may be confusing as the woofer and tweeter are electrically connected to the amplifier in opposition. The positive terminal on the woofer is connected to the negative (or earth) terminal of the amplifier, and the positive terminal of the tweeter is connected to the positive terminal of the amplifier.

This wiring corrects for the phase problems between the woofer and tweeter that occur around the crossover frequency. A noticable dropout will be present in the upper midrange if the tweeter and woofer are not connected in this way.

Hope this helps.

Stephen

Stephen · 10th December 2003, 05:26 PM

Thank-you for your encouragement, 7V.

Stephen

Stephen · 10th December 2003, 05:33 PM

Thank-you for your reply, "sreten". With regards to the oversimplified magnet structure, I wrote a disclaiming note in the introduction, instead of making the extra effort with the diagram. Sheer laziness.

Stephen

squidbait · 10th December 2003, 05:51 PM

Thank you for your help. I have a mental block somewhere that won't let me see what the wiring should look like in real life. I will keep reading!

Timn8ter · 10th December 2003, 06:17 PM

Very nice! Would you mind if I added this as a link on

my website ?

10th December 2003, 01:31 PM	#1
Stephen diyAudio Member Join Date: Dec 2003 Location: The Great White North	Loudspeaker primer for the novice I've created a website that explains loudspeaker theory with simplified language and illustrations. The address is: www.cyberus.ca/~ec091357/HomePage.shtml

10th December 2003, 03:48 PM	#3
7V diyAudio Member Join Date: Feb 2003 Location: just South of London	A very attractive web site with excellent pictures. Well done. __________________ Steve Margolis Seventh Veil Loudspeakers defy convention - make music

10th December 2003, 04:09 PM	#4
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	great job ! Very nice site with good basic stuff. If your open to suggestions I think with such good quality diagrams using a typical rather than simplified magnet structure with the magnet ring and pole pieces would aid understanding. /sreten.

10th December 2003, 05:24 PM	#6
Stephen diyAudio Member Join Date: Dec 2003 Location: The Great White North	Website schematic diagram Hello SB Thank-you for your reply. The diagram may be confusing as the woofer and tweeter are electrically connected to the amplifier in opposition. The positive terminal on the woofer is connected to the negative (or earth) terminal of the amplifier, and the positive terminal of the tweeter is connected to the positive terminal of the amplifier. This wiring corrects for the phase problems between the woofer and tweeter that occur around the crossover frequency. A noticable dropout will be present in the upper midrange if the tweeter and woofer are not connected in this way. Hope this helps. Stephen

10th December 2003, 05:26 PM	#7
Stephen diyAudio Member Join Date: Dec 2003 Location: The Great White North	webite Thank-you for your encouragement, 7V. Stephen


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10th December 2003, 03:29 PM	#2
squidbait diyAudio Member Join Date: Dec 2003 Location: Detroit Area	I am most definitely a novice. I have read many articles on crossover networks, and am uterly confused. When I look at these diagrams (such as the one at the end of the link above), I don't understand the "bridging" used between the positive and negative leads. I looks to me like the signal would pass straight through, and the "bridge" with the inductor and capacitor would have no effect. Maybe someone can let me know what I am missing. Sorry if I am using the wrong terminology.

10th December 2003, 04:13 PM	#5
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	SB : The diagram may be confusing you with its central earth, the wiring is in paralell, not bridged, top and bottom are poth positive. /sreten.

10th December 2003, 05:33 PM	#8
Stephen diyAudio Member Join Date: Dec 2003 Location: The Great White North	website diagram Thank-you for your reply, "sreten". With regards to the oversimplified magnet structure, I wrote a disclaiming note in the introduction, instead of making the extra effort with the diagram. Sheer laziness. Stephen

10th December 2003, 05:51 PM	#9
squidbait diyAudio Member Join Date: Dec 2003 Location: Detroit Area	Thank you for your help. I have a mental block somewhere that won't let me see what the wiring should look like in real life. I will keep reading!

10th December 2003, 06:17 PM	#10
Timn8ter diyAudio Member Join Date: Jul 2003 Location: Seattle, WA	Very nice! Would you mind if I added this as a link on my website ?

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