Voice coil

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furflier

Copper - Posts: 236

Joined: June 14, 2004

Location: United States

Posted: March 21, 2005 at 7:33 AM / IP Logged

What is the largest voice coil on a sub. I was told that there is an 18" sub with a 6" voice coil. This just sounds wrong. So if anyone can clear this up for me I would appreciate it.

soundmasta

Silver - Posts: 246

Joined: November 17, 2004

Location: United States

Posted: March 21, 2005 at 8:35 AM / IP Logged

check out the adire audio web site. the tumulet i think it's called

haemphyst

Platinum - Posts: 5,054

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Joined: January 19, 2003

Location: Michigan, Bouvet Island

Posted: March 21, 2005 at 8:51 AM / IP Logged

OK, the driver on the Adire site is called the "Tumult", and why would you have a problem with a 6 inch voice coil on an 18" woofer? Have you ever seen a six inch woofer with a 3" voice coil? It is one of my all time favorites - the Morel MW series of woofers all have a three inch voice coils. I don't see why an 18 couldn't have a 6" coil. It all depends on what the builder has in mind... What he wants to achieve.

As afar as an answer to your orignal question, I have seen an 18 inch driver with a 4.5 inch VC, but I can't remember for the life of me where it was. I *THINK* it was made by Orca, a now defunct woofer manufacturer, who also had a 24 inch woofer in their product line-up.

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."

Steven Kephart

Platinum - Posts: 1,737

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Joined: November 06, 2003

Location: Oregon, United States

Posted: March 21, 2005 at 11:18 AM / IP Logged

The Tumult actually uses a 3" voice coil.

I know of one sub that uses a 6" voice coil. However keep in mind that a larger diameter voice coil isn't necessarily a good thing. You would have to compensate for a lot of extra moving mass, inductance, and tooling costs as there really aren't standard parts available for something like that.

I know that the MTX Jackhammer also uses a pretty large diameter voice coil. However I am unsure what size it actually is.

Steven Kephart

Adire Audio

jeffchilcott

Platinum - Posts: 2,483

Joined: April 11, 2002

Location: United States

Posted: March 21, 2005 at 4:43 PM / IP Logged

i think the audiobahn cough"cough" 32 inch sub uses a 4 inch coil

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Wiseguy

Copper - Posts: 159

Joined: December 19, 2003

Location: United States

Posted: March 21, 2005 at 6:45 PM / IP Logged

here you go http://www.acoupower.com

check this out, uses six inch voice coils, enjoy Voice coil -- posted image.

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furflier

Copper - Posts: 236

Joined: June 14, 2004

Location: United States

Posted: March 21, 2005 at 8:06 PM / IP Logged

Thanks for the info. It just sounded a little for fetched to me. Thats why I posted it here. I knew that somebody could tell me for sure. I guess anything is possible.

Steven Kephart

Platinum - Posts: 1,737

Joined: November 06, 2003

Location: Oregon, United States

Posted: March 21, 2005 at 9:01 PM / IP Logged

Wiseguy wrote:

here you go http://www.acoupower.com

check this out, uses six inch voice coils, enjoy Voice coil -- posted image.

That's the one I was thinking of. I see he still hasn't released any parameters yet.

If you want some more information about it, we had an interesting conversation with the owner a couple months ago. Here's the link: http://forum.elitecaraudio.com/showthread.php?threadid=106511

Steven Kephart

Adire Audio

Alpine Guy

Platinum - Posts: 2,478

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Joined: October 18, 2003

Location: Canada

Posted: March 21, 2005 at 9:59 PM / IP Logged

I couldn't help but laugh when i read this " Dan,

I don't think you are purposefully lying, but you don't have any idea what you are talking about."

Ya.. uhhhh huh haha

2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.

stevdart

Platinum - Posts: 5,816

Joined: January 24, 2004

Location: Pennsylvania, United States

Posted: March 21, 2005 at 10:47 PM / IP Logged

"We are now shipping the "Monsters" as Vance Dickason and other industry veterans have discribed them."
Uh oh, here comes MonsterCable and its horde of lawyers! Carlos, you're really asking for it now.
I read the first 4 or 5 pages of that thread...oh MAN! That's a tough business. You better know your stuff before you trot it out to the audio hobbyists!

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