Is there really any technique to building a sealed box?

[Vadude 10+ year member]

Aside from making sure the box is 3/4 mdf, the inside is sealed, and the box is the appropriate size the manufacturer reccomendeds for the woofer going inside of it, Is there really any technique to building a sealed box?

In terms of good sq and maybe spl.

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[skadude016 5,000+ posts]

More rectangle. Dont go perfect sqaure

 

[Vadude 10+ year member]

More rectangle. Dont go perfect sqaure

Other than that of course, should have added that to my original post.

It seems like the requirements for building a good sealed box is pretty simple. Meaning any novice can make a box that performs the same as an expert box makerif they follow what Ive stated and you added.

is it really that simple?

surely there is something else that factors into a good sealed box, based on a technique.

 

[vosschs 5,000+ posts]

Other than that of course, should have added that to my original post.

It seems like the requirements for building a good sealed box is pretty simple. Meaning any novice can make a box that performs the same as an expert box makerif they follow what Ive stated and you added.

is it really that simple?

surely there is something else that factors into a good sealed box, based on a technique.

if flakko can do it any one can

 

[slim j 10+ year member]

There is a size to power relationship. Something like a larger box can "make" the sub accept more power or something along those lines...free bump for someone to chime in on what I am trying to say.

 

[Vadude 10+ year member]

There is a size to power relationship. Something like a larger box can "make" the sub accept more power or something along those lines...free bump for someone to chime in on what I am trying to say.

I think I understand, but wouldnt that mean making the box larger than what the manufacturer recomends?

 

[djman37 5,000+ posts]

I think I understand, but wouldnt that mean making the box larger than what the manufacturer recomends?

opposite.

 

[bikejunkie223 10+ year member]

stuff the thing with polly-fill (batting you put in pillows) and if you can make the inside shape less square, you will get better sq (part of the reason fiberglass boxes sound better- the irregular shape helps cancel interior box reflections) But that's probably a pain in the *** to do.

 

[Vadude 10+ year member]

Ive heard, that a circular enclosure would be perfect for a sealed sq oriented box. Is that true and has it ever been tried (fiber glassing)???

 

[skeptikal Premium Member]

I'm sure it has been tried. Dude really i dont think there will be too much of an audible difference between a properly built rectanglur box and a fiberglassed box. If you seal the box completely so no air will leak out you will have constructed a perfectly sealed box.

 

[azbass 5,000+ posts]

build the box keeping in mind of How your gona cover it.

 

[squeak9798 5,000+ posts]

Shape doesn't matter. Bass waves are far too long for standing waves inside of the enclosure to be a problem. Even a 1/4 wave won't fit inside most enclosures, unless you are running your sub up above 200hz.

And the smaller the box, the less efficient the system (increased mechanical power handling). Larger box = increased efficiency (decreased mechanical power handling).

And then, ofcourse, you have the whole issue of Qtc. Incase you haven't considered that yet.

 

[squeak9798 5,000+ posts]

Ive heard, that a circular enclosure would be perfect for a sealed sq oriented box. Is that true and has it ever been tried (fiber glassing)???

See above statement regarding standing waves.

 

[CntInjaDisNinja 10+ year member]

I moved my two Diamond D3's from sealed rectangle to sealed fiberglass and I did notice a slight increase in SQ by running a couple of bass sweeps and they responed to larger band of frequences better/

 

[squeak9798 5,000+ posts]

I moved my two Diamond D3's from sealed rectangle to sealed fiberglass

Of the exact same volume?