Still haven't gotten a clear answer on this...

[bcarpenterfhl 10+ year member]

in a sealed box with multiple drivers, is it necessary to have a sealed chamber for each driver? I have 3 tens in a sealed box right now, each with their own seperate chamber. I plan to buy another 10 soon, but dont have enough width room in my car to give each its own seperate chamber. I could probably do two tens per chamber, but is seperating the subs even necessary in the first place? I know it isnt for ported enclosures, but what about sealed?

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[ANeonRider 10+ year member]

No it isn't.

 

[bcarpenterfhl 10+ year member]

sweet.

 

[Acidburn 5,000+ posts]

my sealed box isnt going to be separated

 

[bcarpenterfhl 10+ year member]

i'll probably just do 2 per chamber anyway for bracing purposes.

 

[RCwhat 10+ year member]

you guys do understand that if one of your subs blow, now that other sub is going to be seeing alot more air space and will reach full excusrion with much less power then before which in turn can now blow your good sub if you continue to send it the same power as before. all in all, not a great idea.

 

[Acidburn 5,000+ posts]

you guys do understand that if one of your subs blow, now that other sub is going to be seeing alot more air space and will reach full excusrion with much less power then before which in turn can now blow your good sub if you continue to send it the same power as before. all in all, not a great idea.

but when you have a fiberglass bottom which has irregularities from side to side, you cant separate it because you dont want different air spaces for the subs

 

[bcarpenterfhl 10+ year member]

the same thing could apply for ported boxes though, and making a ported box with seperate chambers is a lot of the time impossible because of space limitations. i dont think its such a huge risk.

 

[RCwhat 10+ year member]

but when you have a fiberglass bottom which has irregularities from side to side, you cant separate it because you dont want different air spaces for the subs

you can, its just gonna take alot of time to get it right. For glassed enclosures your gonna have to do the garbage bag full of water trick to get the correct volume. then once you figure out the volume in liters then just covert to ft^3.

 

[Acidburn 5,000+ posts]

you can, its just gonna take alot of time to get it right. For glassed enclosures your gonna have to do the garbage bag full of water trick to get the correct volume. then once you figure out the volume in liters then just covert to ft^3.

oh i know, i actually could divide it close to the middle, then figure out each side and add to the bigger one, but thats just way to much work

 

[ANeonRider 10+ year member]

If a sub blows, you have more problems than just airspace.

 

[bcarpenterfhl 10+ year member]

just buy a sub that wont blow, and if it blows, make sure you bought from an authorized dealer so its warrantied.

 

[iamamp3pimp 5,000+ posts]

just buy a sub that wont blow, and if it blows, make sure you bought from an authorized dealer so its warrantied.

by far the best idea

my sealed subs were in seperate chambers, but before i got into i theavily, i used to take one sub out and use the box for trunkspace. now i use a single chamber every time

 

[IgnoreMe 5,000+ posts]

you guys do understand that if one of your subs blow, now that other sub is going to be seeing alot more air space and will reach full excusrion with much less power then before which in turn can now blow your good sub if you continue to send it the same power as before. all in all, not a great idea.

umm if a sub blows how is that gonna take up less air space? what takes up air space is the motor structure of the subwoofer. when a sub blows, the motor assembly doesnt just magically disappear and then add .07 cubic feet of volume or whatever your sub displaces. and lets say that somehow, some way it just did work that way. even in this situation most subs take up about .07-.18 cubic feet of space so lets say when your sub blew you gained .10 cubic feet...the difference is airspace is so small your sub wont be in anymore danger than when it was running with .10 cubes less

 

[Tirefryr 10+ year member]

umm if a sub blows how is that gonna take up less air space? what takes up air space is the motor structure of the subwoofer. when a sub blows, the motor assembly doesnt just magically disappear and then add .07 cubic feet of volume or whatever your sub displaces. and lets say that somehow, some way it just did work that way. even in this situation most subs take up about .07-.18 cubic feet of space so lets say when your sub blew you gained .10 cubic feet...the difference is airspace is so small your sub wont be in anymore danger than when it was running with .10 cubes less

He never said it would take up LESS space. He simply said that instead of 2 drivers sharing the same volume, i.e. each sub seeing half the total volume, that now 1 sub is seeing the entire volume whereas before it was only half. Now, this is true, but being as how under normal conditions, the drivers are seeing the same signal. Now, if 1 driver is taken out of the equation, you will halve the power going to the drivers, therefore negating the effect of the increase in enclosure volume with the decrease in power.

How many guys do you see in the SPL lanes using separate chambers? And how many of them have every driver fail at once? //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

In theory it could damage the other driver, but the odds are against it. Most likely the amplifier will get damaged before the other driver due to a direct short in the damaged driver.

Of course, none if this is really all that feasible because everyone will immediately notice a decrease in output and then go see what the problem is.