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Box Issues to consider


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shaman 
Copper - Posts: 70
Copper spacespace
Joined: May 01, 2004
Location: United States
Posted: May 03, 2004 at 9:43 PM / IP Logged  
OK, I like to get dirty on the weekends and I'm gonna build myself a box for one 10" SW8102.4.  I have built several boxes with good sucess but would like to try something different.  I want to use 3/4" fiber force with a venier (like oak or cherry, etc.) and 1" for the front.  Basically it will be a 14.5" cube with roughly 1.2 CuFt internal volume.  But unlike the nomal butt joint with screws, would a 45º mider with heavy glue and some finish nails survive?  That way there is no board end exposed or screws visible and the hardwood venier could be stained and poly'ed.  A more smooth look like cabinetry.  If this is absolutly doomed any other suggestions?
DYohn 
Moderator - Posts: 10,741
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Joined: April 22, 2003
Location: Arizona, United States
Posted: May 03, 2004 at 9:49 PM / IP Logged  
No, that is fine, although I recomend you put a 1" X 1" brace inside each corner screwed to the side walls for seam strength, as glue and nails won't stand up to subwoofer pressure.  Also, a perfect cube is not the best shape for an enclosure, but go for it and see how it sounds.
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shaman 
Copper - Posts: 70
Copper spacespace
Joined: May 01, 2004
Location: United States
Posted: May 03, 2004 at 9:55 PM / IP Logged  
No cube eh.  How should I dimension it then?  Deeper front to back or shallower?
DYohn 
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Joined: April 22, 2003
Location: Arizona, United States
Posted: May 03, 2004 at 11:05 PM / IP Logged  
Well the "perfect" enclosure shape is determined by the "Golden Ratio," which is 0.62 :1.0 : 1.62 and is used because it spreads the internal resonances of the cabinet over the broadest frequency range.   This is a very important consideration in building acoustic suspension (sealed) full-range enclosures, and somewhat less important for subs.  But I still try to stay as close to it as possible when designing enclosures.
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casedeez 
Copper - Posts: 160
Copper spacespace
Joined: April 21, 2004
Location: United States
Posted: May 04, 2004 at 2:28 AM / IP Logged  
Dyohm, would you mind taking a look at my most recent post and tell me what you think about that? It has to do with resonance, but instead of inside the box, im tlaking about inside the vehicle. Lemme know what you think.
shaman 
Copper - Posts: 70
Copper spacespace
Joined: May 01, 2004
Location: United States
Posted: May 04, 2004 at 12:35 PM / IP Logged  

So make consecutive dimensions close to the golden ratio,  Fibbinocci numbers, cool!  I got some ideas no

shaman 
Copper - Posts: 70
Copper spacespace
Joined: May 01, 2004
Location: United States
Posted: May 04, 2004 at 12:35 PM / IP Logged  

So make consecutive dimensions close to the golden ratio,  Fibbinocci numbers, cool!  I got some ideas now


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