Mounting the driver faced in..... - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 14 Old 05-21-2012, 04:14 PM - Thread Starter
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So, can you mount a driver facing in ? That would allow you the stiffest cabinet walls as the driver back usually compromises the design by taking up bracing.

Just wondering...
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post #2 of 14 Old 05-21-2012, 04:19 PM
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A bass driver with an open frame can get away with that (sub). Once you get higher in frequency the outside cone profile is needed.
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post #3 of 14 Old 05-21-2012, 04:21 PM
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It works great for subwoofers.




The only caveat is potential motor noise. Undersized venting and such can lead to excess noise.

I prefer it because it will increase the internal volume of the cabinet a bit because of the airspace in the cone, and really helps cool the motors in open air instead of heating up the inside of a cabinet.

And it looks sweet to have all that metal just hanging there.

 

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It's also the very sort of Voodoo Engineering that should never be done.

 

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post #4 of 14 Old 05-21-2012, 04:33 PM
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Quote:
Originally Posted by kgveteran View Post

So, can you mount a driver facing in ? That would allow you the stiffest cabinet walls as the driver back usually compromises the design by taking up bracing.

Just wondering...

Yup. People do it all the time....as Wi just posted above, even.

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post #5 of 14 Old 05-21-2012, 04:39 PM
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In my IB manifolds for my xxx 18's, I'm having one in and one out dual opposed. Saves alot of space with the magnet of the xxx. Have to reverse the polarity on one driver of course
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post #6 of 14 Old 05-21-2012, 04:41 PM
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Originally Posted by keager View Post

In my IB manifolds for my xxx 18's, I'm having one in and one out dual opposed. Saves alot of space with the magnet of the xxx. Have to reverse the polarity on one driver of course

The main benefit of doing it like that is to balance out driver non-linearity.
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post #7 of 14 Old 05-21-2012, 04:43 PM
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Thats what ive been told. Thanks for confirming.
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post #8 of 14 Old 05-21-2012, 05:28 PM - Thread Starter
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Do you guys use the huge rubber ring around the driver, or do you ise a gasket material
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post #9 of 14 Old 05-21-2012, 05:32 PM
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I use speaker gasket tape from PE on the cabinet itself, between the rubber and wood, to seal a bit better between mounting points.

 

Originally Posted by Bill Fitzmaurice:
It's also the very sort of Voodoo Engineering that should never be done.

 

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post #10 of 14 Old 05-22-2012, 06:04 AM
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Quote:
Originally Posted by kgveteran View Post

Do you guys use the huge rubber ring around the driver, or do you ise a gasket material

Closed cell foam that you can get from any hardware store. Comes in rolls. seals up the driver much tighter than the stock rubber ring.

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post #11 of 14 Old 05-23-2012, 04:36 PM - Thread Starter
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Does that huge rubber ring serve any other purpose, other than a not so good gasket. Why do i feel like it has something to do with the surround and keeping it in place..... Weird, maybe I'll do a little reworking of that area of my subs...
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post #12 of 14 Old 05-24-2012, 04:39 PM - Thread Starter
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So, their just wired out of phase ?
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post #13 of 14 Old 05-24-2012, 04:44 PM
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Are you referring to my situation with one in and one out?
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post #14 of 14 Old 05-24-2012, 05:36 PM
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Quote:
Originally Posted by kgveteran View Post

So, can you mount a driver facing in?

It does make the drivers more vulnerable to damage. You can remedy that by extending the top, bottom and sides, which also will lend a bit of additional loading while not requiring any calcs, like a bandpass does. Then you can add a grille as well if further protection is required, as in having kids in the house or anything else in the trunk.

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