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Re: Place Sub in enclosure?
aspicer1 #279415 11/17/09 09:16 PM
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 Originally Posted By: aspicer1

Micah... forgive me...what is WAF?
Wife Approval Factor


Jason
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Re: Place Sub in enclosure?
alan #279416 11/17/09 09:17 PM
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Ok, let’s say i wanted to be completely stubborn and recess the sub into the wall regardless. Big surprise right! Is there something i can build inside of the wall to help either absorb or project forward the sound emanating from the top, sides and rear of the sub? Maybe an additional drywall enclosure or some insulation or both? Something else?

Still not sure I'm going to do it this way but want to consider all choices.


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Re: Place Sub in enclosure?
aspicer1 #279417 11/17/09 09:19 PM
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You could try to build the surrounds of the enclosure angled to deflect the waves outward, not that LFE are ever really deflected much.


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Re: Place Sub in enclosure?
jakewash #279427 11/17/09 10:30 PM
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Along the same lines of possible compromise, is there a problem with laying the sub on it's side (with appropriate pads) or even a vertical center? By now you can sense I have serious space issues.

Carl

Re: Place Sub in enclosure?
Carl #279430 11/17/09 10:39 PM
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If your going to go with a vertical center, it would be better to get a matching bookshelf, like the M3 or M22, versus turning a center on end, which is designed to be horizontal.


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Re: Place Sub in enclosure?
alan #279438 11/17/09 11:45 PM
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Knowing just enough about sub design to be dangerous...

 Quote:
they are designed to work sitting on a floor in "free space" and that is how they're measured as well.


I would think that if you were to construct a cabinet such that the front face were closed around the sub and flush with the front of the sub (ie: the front of the sub and cabinet are like a wall), you would be ok as long as there was not significant resonance in the enclosure. This might require that the front face be reinforced some way. Is baffle diffraction also an issue with subs?

I could see an open cabinet acting as a resonator and colouring the sound though.

I would think the same goes for a column. As long as the column is properly reinforced so that it does not act as a resonator, you should be OK.


Fred

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Re: Place Sub in enclosure?
alan #279460 11/18/09 02:25 AM
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WAF = Wife's approval factor...



Edit, oh I see I'm too late on this one.



Last edited by Micah; 11/18/09 02:26 AM.

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Re: Place Sub in enclosure?
Micah #279462 11/18/09 02:40 AM
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While we understand that subs are not designed to be confined into an area, I think we all also understand that compromise is the key to any successful HT when men and women are both involved in the planning. This means not all of us can have 4 huge subwoofers laying around in the room, all seated in the position which brings out the best from each of them. It also means that quite a few of us won't even have the privilege of having one huge box laying around in it's perfect position. So while the advice being given says, "don't do it", my own theory is, "a subwoofer stored away in a cabinet, a closet, or some other subprime location is still better than no subwoofer at all". Don't worry friend, many of us here are married, so we feel your pain!

An alternative that is seldom brought up around here is, getting an 'in-ceiling' subwoofer. Axiom doesn't make any, but you can find them. If you have access to your attic, this could be a great compromise for you. You could place one or two of them right above your seating position, or in any other location you desire. Placement does present a bit of a problem as it becomes very hard to experiment with where they might sound best. After all once you cut a hole in your ceiling you're pretty much committed after that!

But they are at least out of sight!


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Re: Place Sub in enclosure?
Micah #279469 11/18/09 03:11 AM
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I totally understand what you are saying my friend.. I for one am lucky, I " own " the basement so I can place my speakers and subs anywhere I want.. but I'm building a brand new HT system for my cousin and his better half has her paw prints all over the thing.. first it was " I want ALL electronics in the closet" .. then it was " I don't want a big tv and a bunch of stuff with the big tv showing" .. then it was " I change my mind, I don't want it in the closet" and on and on..

Finally, we've got the Epic 80 - 500 system in his basement, still in the shipping boxes, along with a new Onkyo 807 receiver and the bunch of BlueJeans cable that just came in today.. the big Build is this coming Saturday.. I told him.. make sure your wife has " other plans " for the entire day.. Don't get me wrong, I like her.. I just don't want her around me while I'm setting up six grand worth of gear !!!!!! She'll drive me crazy ! I can't wait for her reaction to the EP-500 size.. !! no honey, it's not our new coffee table.. it's a SUB.. !! Yes honey, the M80s are quite large, but wait, just sit down and listen .. he he he..:-)


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Re: Place Sub in enclosure?
alan #279487 11/18/09 04:29 AM
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HA WAF! thats good stuff. Luckily its not as much about approval as it is my trying to ensure we are both as happy as can be in every way. I pretty much have control over what is done in the theater room but still want to try to think of her in the design. of course i cant say the same for the rest of the house.......

Anyway sounds like I can try to create a sort of secondary cabinet for the sub in the column and that should help. Any ideas on what materials i should use for that?

I also just realized that in doing this i am limiting my ability to upgrade later to a larger sub without some demolition and rebuiling of the column.


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