Video of the longest excursion sub

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=49352
Printed Date: April 28, 2024 at 3:50 PM

Topic: Video of the longest excursion sub

Posted By: Steven Kephart
Subject: Video of the longest excursion sub
Date Posted: February 04, 2005 at 4:22 PM

Hey guys. I figured some of you might enjoy seeing our Parthenon subwoofer under excursion. Here's the link: https://www.woofervids.com/displayimage.php?album=7&pos=0

Steven Kephart

Adire Audio

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Replies:

Posted By: dwarren
Date Posted: February 04, 2005 at 4:49 PM

that looks rather inappropriate! lol. So when are you going to put a cone on it? What kind of power are you putting to it?

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Posted By: MAXST
Date Posted: February 04, 2005 at 4:50 PM

Wow....uh...might want to put a XXX rating on that clip... that look soooo bad. lmao!

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Posted By: uthinkuknoaudio
Date Posted: February 04, 2005 at 6:08 PM

That is truly amazing, though astounding pornographic lol. I want to see a cone on that badboy. And Hear it most of all...

Anthony

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"I don't play games. I play Nakamichi and that for real yo" - Probably some japanese kid said this in the early 80's trying to sell stereo out of his trunk lol.

Posted By: Steven Kephart
Date Posted: February 04, 2005 at 6:12 PM

It's powered by a 250 watt amplifier. And oddly enough, they call these types of video's "speaker porn".

Steven Kephart

Adire Audio

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Posted By: OCURIEL
Date Posted: February 04, 2005 at 6:48 PM

Posted By: DYohn
Date Posted: February 04, 2005 at 7:18 PM

Very cool video. No need for a "cone." How about a 36" square reinforced fiberglass panel in a resonance chamber tuned to 16Hz just to shake a 100 seat theatre and put out that periodic 125db punch in the gut? posted_image

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Posted By: forbidden
Date Posted: February 04, 2005 at 8:00 PM

ohhhhhh,ohhhhhh,ohhhhhhhhh,ahhhhhhh!

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Posted By: Steven Kephart
Date Posted: February 04, 2005 at 8:01 PM

The cone we have for it is a 24" square piece. It has more displacement than 12 of our Tumults. Just sitting there without an enclosure it is capable of 121 dB at 20 Hz. Here's a link to more info: https://www.adireaudio.com/TextPages/ParthenonPageFrameText.htm

BTW, the "cone" is a piece of balsa wood with some sort of fiberglass reinforcement. It's some special material they use at NASA that is pretty expensive. But it is super light and VERY strong. We can go up to 48" if you really want some output. posted_image We can also scale it up with more excursion if you want as well. The suspension on that thing is good out to over 100 mm one way. That is where the Cms is down by 10%.

Steven Kephart

Adire Audio

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Posted By: Alpine Guy
Date Posted: February 04, 2005 at 9:05 PM

Good Ghad! 175mm peak to peak motor movement! If you could use all that, ouff!!

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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.

Posted By: KarTuneMan
Date Posted: February 04, 2005 at 10:42 PM

Ya know..........whooop ti dooooooo. Its a GREAT electro magnetic devive, BUT......can it make music???

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Posted By: Steven Kephart
Date Posted: February 05, 2005 at 2:11 AM

Of course it can. posted_image

Steven Kephart

Adire Audio

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Posted By: dwarren
Date Posted: February 05, 2005 at 2:16 AM

what's the displacement on the motor structure? What's the enclosure going to entail?

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Posted By: Steven Kephart
Date Posted: February 05, 2005 at 3:36 AM

Check the link I provided in a previous post and you will see some of those details. The exact displacement of the motor I'm not sure of. But the physical size of the thing is provided and should give you an idea of it's size.

Steven Kephart

Adire Audio

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Posted By: phuzun
Date Posted: February 05, 2005 at 8:09 AM

So you guys actually made any of these for people? Be interesting to see what they do in a vehicle. Can it push a 5hz wave at a high level?