noob question but what does adding fill to the enclosure do?
what does adding "fill" do to the sound of a speaker
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Improves the sound...
This topic has been covered at length, so a forum search is a good idea. Use the word damping instead of fill
IB subwoofer FAQ page
"Complicated equipment and light reflectors and various other items of hardware are enough, to my mind, to prevent the birdie from coming out." ...... Henri Cartier-Bresson- Bottom
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Sometimes it makes things sound worse. Especially if you overstuff.
At that point all you can do is kill it and harvest the liver.
It is a tool for tweaking - it can cut down on internal reflections/resonances - sometimes it can tame a sharp upturn peak in a bandpass or other "ported" (i.e. TL variants also) alignment.
You usually can't build too small and just stuff the heck out of the box to fix it.
CdiVine Sound - my DIY speaker designs at diVine Audio- Bottom
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You can use Unibox to model a woofer in various size boxes, then play with the fill setting to see what affect it has on the frequency response. Unibox has options for "no fill", "walls covered" and "heavy fill".
Actual tests are easy to do and are the most revealing.- Bottom
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Originally posted by cjdSometimes it makes things sound worse. Especially if you overstuff.- Bottom
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Originally posted by syzygylockSo how much is overstuffing? I got the Acousta Stuf and it's hard to judge how much to stuff in ops:- Bottom
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Originally posted by syzygylockSo how much is overstuffing? I got the Acousta Stuf and it's hard to judge how much to stuff in ops:
If you have access to a kitchen scale they're really handy. Add damping an oz or so at a time to a small box.
Sealed boxes are 'filled' (no not literally) with damping. Typically the wall of ported boxes are lined with material. Keep the damping material away from the port as it will interfere with it's operation.
IB subwoofer FAQ page
"Complicated equipment and light reflectors and various other items of hardware are enough, to my mind, to prevent the birdie from coming out." ...... Henri Cartier-Bresson- Bottom
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