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Hole Box or Whole Box?

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=56306
Printed Date: July 12, 2025 at 6:43 AM


Topic: Hole Box or Whole Box?

Posted By: 5150azn
Subject: Hole Box or Whole Box?
Date Posted: May 23, 2005 at 5:55 PM

A while back when the W7s were first comming out my friends went to get some trainning at the JL facillity. They told me about this box within a box called a whole box or a hole box... I don't remember. You guys ever heard of this?

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Tell the Snap-On guy I'm not here!



Replies:

Posted By: Drewt
Date Posted: May 23, 2005 at 10:12 PM
well, that's either some sort of bandpass box, or it's a waste of wood & space...



Posted By: jeffchilcott
Date Posted: May 23, 2005 at 10:33 PM
I would guess if it was at a jl training tutorial it would not be a waste, and I would bet they were refering to the design similar to thier high output boxes.     I have built a few of these sucessfully, but no where near the SQ that they get out of them.

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Posted By: Poormanq45
Date Posted: May 24, 2005 at 9:38 AM
COuld be a high efficiency resonance chamber tuned to vibrate(not audibly) between a certain frequency range.

If that's the case, these were used back in the day. People put them under their home theater floor and coupled a few 18s/24s to it. Just think, 110+dB at 15hZposted_image .

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Posted By: jstruckman
Date Posted: May 24, 2005 at 11:10 AM
It is the JL Audio H.O. box, and it is just there high output bandpass boxes, designed for SPL.

Jazzy

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Posted By: 5150azn
Date Posted: May 24, 2005 at 12:17 PM
You guys might be right. They must have called it a HO box. You guys know where I can get more info on this?

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Tell the Snap-On guy I'm not here!



Posted By: wirewise
Date Posted: May 24, 2005 at 12:24 PM
Found this on JL Audio's site.

~wirewise~


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