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DIY For Audio
Surprise surprise.... another IB?
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<blockquote data-quote="JimGore" data-source="post: 185511" data-attributes="member: 3"><p>Hi Ryan,</p><p></p><p>I think you have missed some critical information regarding an IB subwoofer somewhere along the way:</p><p></p><p>1. An IB is not the same as a subwoofer in a box with an open side.</p><p>2. An IB needs a minimum of 4x driver VAS worth of air volume per driver to work. The optimal is 10x or more. For the Fi drivers, that means you will need nearly 4,000 liters worth of air volume for each driver. No way you can build a box for that.</p><p>3. In the USA, they like to build IB subwoofers such that the basement is the "enclosure", thus the drivers are actually under the floor, and the sound exits into the listening room through a hole in the floor, etc.</p><p>4. In SA, we don't usually have basements, so that means you will need to build the manifold into your roof, and make the sound exit through the ceiling into your listening room.</p><p></p><p>In order to get more clarity, please read my IB build thread in the DIY section - it has alot of information and links to other sites & information. Also check out the "cult of the infinitely baffled" forum.</p><p></p><p>Ian.</p></blockquote><p></p>
[QUOTE="JimGore, post: 185511, member: 3"] Hi Ryan, I think you have missed some critical information regarding an IB subwoofer somewhere along the way: 1. An IB is not the same as a subwoofer in a box with an open side. 2. An IB needs a minimum of 4x driver VAS worth of air volume per driver to work. The optimal is 10x or more. For the Fi drivers, that means you will need nearly 4,000 liters worth of air volume for each driver. No way you can build a box for that. 3. In the USA, they like to build IB subwoofers such that the basement is the "enclosure", thus the drivers are actually under the floor, and the sound exits into the listening room through a hole in the floor, etc. 4. In SA, we don't usually have basements, so that means you will need to build the manifold into your roof, and make the sound exit through the ceiling into your listening room. In order to get more clarity, please read my IB build thread in the DIY section - it has alot of information and links to other sites & information. Also check out the "cult of the infinitely baffled" forum. Ian. [/QUOTE]
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DIY & Tutorials
DIY For Audio
Surprise surprise.... another IB?
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