inverted sub box

My friend inverted a sub once, even though the manufacturers pamphlet said not to. I think it was RE Audio sub or MTX or something (don't quote me). It lasted about an hour before it went up in smoke. I've never done it, always wanted to. The explanation I got was that; inverting a sub takes a bit of boom out of the sound. I guess it also depends on the sub you're using. I've always wanted to try it with a Focal KX series sub. But they're so beautiful, they were made to be inverted. it would be a shame not to have them on show.

 
Inverting your sub will increase the box volume giving you the full chamber. This usually doesn't do much because the subs displacement (depending on what the enclosure size is) doesn't affect it that much. For example, an 18" sub usually takes up around .25 cubic feet of displacement. In a 7 cube box to 7.25 cubes you won't notice much, if anything.

The problem with running inverted is mechanical noise (especially on low notes, mostly below 35hz). When the sub is mounted "normally" in the enclosure a lot of that mechanical noise is muffled. If you wanted to show the sub's ass, I would design the enclosure to have some form of plexi or something so you can see the sub. Much more practical than inverting it, IMO

 
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mmm

 
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