4 12s only 2 chambers

[JoseMCeee 10+ year member]

Wouldnt this cancel out the sound of the speakers?

http://www.craigslist.org/sby/ele/158394835.html

Click to read more...

 

[imaspaceguy90 10+ year member]

no

 

[PhatTonyDeMarco 5,000+ posts]

//content.invisioncic.com/y282845/emoticons/eyebrow.gif.fe2c18d8720fe8c7eaed347b21ea05a5.gif Where are the other two?

 

[JoseMCeee 10+ year member]

supposably there are 2 screwed in regularly. Then theres the other two on top of those screwed down. I was just wondering how this would sound. I just thought it was weird...

 

[DBfan187 5,000+ posts]

Isobaric...?

 

[PhatTonyDeMarco 5,000+ posts]

If there are right on top of each other wouldnt that limit the cones movement?

 

[JoseMCeee 10+ year member]

yea thats what I was saying. They are W1s though I dont think they have that much xmax or a big surround. But still...

 

[lifted95blaze 10+ year member]

i dont see the point in that.... wouldnt it be the same as only two subs in the box... bec. the other two that are supposedly on top of another arent moving no more air than just the two with the magnets in the box......

 

[DBfan187 5,000+ posts]

http://www.the12volt.com/caraudio/boxes2.asp#top

 

[lifted95blaze 10+ year member]

When enclosure space must be at a minimum, sealed isobaric designs work very well. These usually require half the space of a basic sealed enclosure, but require twice as many drivers and will acheive the same acoustical output as the single driver in the larger enclosure.

so basically what it says is its just as loud with one sub if u have the space??? by the pics of the box it has the space so the other subs mounted magnets outward are just a waste imo

is that right?

and were W1's even out 6 years ago b/c the seller says the equipment is 6 years old?

 

[JoseMCeee 10+ year member]

When enclosure space must be at a minimum, sealed isobaric designs work very well. These usually require half the space of a basic sealed enclosure, but require twice as many drivers and will acheive the same acoustical output as the single driver in the larger enclosure.
so basically what it says is its just as loud with one sub if u have the space??? by the pics of the box it has the space so the other subs mounted magnets outward are just a waste imo

is that right?

and were W1's even out 6 years ago b/c the seller says the equipment is 6 years old?

IC. But lets say the box size was big enough. Mounting 2 subs that way would still be able to get your 2 subs working in the same chamber right? So that would make it twice as loud?

Also I think they are W0's. Mistake on my part.

 

[helotaxi 5,000+ posts]

I have a W1 from '92. The W1v1 were available up until about a year ago.

 

[lifted95blaze 10+ year member]

IC. But lets say the box size was big enough. Mounting 2 subs that way would still be able to get your 2 subs working in the same chamber right? So that would make it twice as loud?
Also I think they are W0's. Mistake on my part.

im not sure on that one man....i mean to me it seems like its just the same as one sub per box when u have the room.... when the box is too small and u have two subs facing each other i can see where it is putting more sound into a smaller box hence making it the same amount of output as a larger box..... but when i say it like that i guess it would be louder even if the box was large enough, but when also having enough volume for the driver inside the box i think there would be some kind of cancellation since there is enough volume for one driver to be effecient........ but im really not sure im getting confused trying to think about it lol

 

[lifted95blaze 10+ year member]

I have a W1 from '92. The W1v1 were available up until about a year ago.

yea i wasnt too sure either i knew the w1v1's came out this past year and didnt know if there was a w1 model before that //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[helotaxi 5,000+ posts]

This year's are the v2.

The theory behind the isobaric loaded drivers is that you double the moving mass and halve the Vas. The result is that the pair of drivers require half the airspace of a single of the same driver and act as a single driver in regards to output. The tradeoff is efficiency. You need to run twice as much power to the single iso-pair to get the same amount of output as you would get from a single driver. 2 iso-pairs can therefore fit in a box sized for 1 normal sub. Other benefits include decreased distortion from suspension nonlinearities because the inverted mounting of the front sub and the out of phase wiring, cancels them out.