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soultinter 
Copper - Posts: 170
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Joined: January 16, 2004
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Posted: August 18, 2007 at 10:01 AM / IP Logged  
Does anyone know the benefits of a shorting ring on a subwoofer?
DYohn 
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Joined: April 22, 2003
Location: Arizona, United States
Posted: August 18, 2007 at 11:29 AM / IP Logged  
They reduce the inductance of the voice coil and can help reduce harmonic distortion.
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soultinter 
Copper - Posts: 170
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Joined: January 16, 2004
Location: United States
Posted: August 18, 2007 at 12:56 PM / IP Logged  

thanks for the reply, so would you say this is a feature usually reserved for higher end speakers?

DYohn 
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Joined: April 22, 2003
Location: Arizona, United States
Posted: August 18, 2007 at 3:05 PM / IP Logged  
It does cost more for a manufacturer to use them.  A well-designed speaker that needs them should have them, but their presence does not necessarily indicate the speaker is "high end."
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mando2155 
Copper - Posts: 74
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Joined: April 03, 2006
Location: United States
Posted: August 20, 2007 at 10:58 PM / IP Logged  
Im guessing that this is something that is put into a speaker during the designing phase?   Its not something you can purchase and just add to any speaker is it?  Since Im not familiar with these, my last questions are how does it reduce inductance, and where would it typicaly be found in the speaker.
haemphyst 
Platinum - Posts: 5,054
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Joined: January 19, 2003
Location: Michigan, Bouvet Island
Posted: August 21, 2007 at 12:30 AM / IP Logged  
It is indeed designed into the speaker. It is an internal piece, placed at the top if the pole piece within the voice-coil. No, it's not possible to just "add one on".
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

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