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What about an Expandable 4th order


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Ok I modeled this up so you can see what I am talking about. Since I have been doing a lot of thinking on 4th orders and how people say more ratio = more output. Well why not the best of both worlds with a an expandable 4th order.

The bottom is not on in this pic so you can see what I am thinking. You can slide your enclosure in and out and get the ratio you want. Say if you are doing a 2:1 ratio then you would be able to double that to 4:1 room permitting.

Slide the box and bolt it in and your ready to go.

Expandable4thorder.jpg

What do you think ?

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seems like it could work? brace it well. interesting idea

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have a removable port with a port made for each ratio. Markers in place so you know what ratio you are at.

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im thinking airleaks. how are you gonna kep the ported section from having air leaks where the none ported section is attached at. just a few bolts wont make it air tight.maybe some rubber molding that will slide with the box so that when you bolt it in place it smashed the rubber like a gasket.

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or a rubber roller that moved with the moving part of the chamber so it is sealed all the time.

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either way could work. as long as you keep it air tight after the adjustment is made i dont see why it wouldnt work. would be nice, could change it for high spl then move it back and swap out ports agian for the low lows.

t1500bdcp

2 t2d4 15"

1 t600.4

1 t400.2

1 set p1 tweets

singer alt, tons of wiring, smd vm-1, 80prs, back seat delete, still in the works, aiming for a 145-147 with the ability to play 25hz up to 50hz.

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It might be easier to make the whole front piece (with the port) removable. Then you can have some pieces that come out more, and each piece can have its own appropriate port on it.

Edit: Kinda hard to explain what I was talking about. Something like this:

expandable1.png

espandable2.png

Then of course you just bolt it in and use some sort of gasketing tape.

Edited by LZTYBRN
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