Question on Sealed Box Chambers

[dannyt 10+ year member]

I've searched the forum, but I still need help.

Say I was to make a sealed box for 2 12" (something along the lines of CompVR's), would it be better to make one big box with one chamber that the 2 subs share or one big box with 2 chambers for each of the 2 subs with a piece of MDF in the middle?

What are the pros and cons to either?

Is one more preferred over the other?

If I were to make the 2 chamber box, would the middle piece of MDF dividing the chambers have to be 2 pieces of MDF or just 1?

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[phyphoestilic 5,000+ posts]

I'd do the 2 chambers if u have space. I did it for my ported box because

1. If one sub goes out it wont have double the space and have a chance of damaging the subwoofer (not as probable with a sealed box)

2. Better bracing for the box itself. the MDF will help stable the box better and make it stronger.

Only con I can think of is u would need a little more space, with a ported box u might need more than just a little cuse u probably have to make 2 ports.

I say if u have the extra material/time/space to do 2 chambers than go for it.

 

[yacob.naif 10+ year member]

And also any changes from one chamber to the other are going to alter the drivers performance if you do seperates

Probably take a fairly large difference to actually notice with a sealed box (most kickpods aren't 100% identical) , but it's still a risk.

 

[dannyt 10+ year member]

So it is better to make 2 chambers rather one chamber? Because most sealed enclosures for 2 subs i've seen searching online have 2 chambers.

 

[helotaxi 5,000+ posts]

It won't take much more space (1 thickness of MDF is all you need) and there is no drawback to building seperate chambers and the benefits are listed above.