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i broke my speaker boxes


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still_walkin 
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Joined: April 18, 2007
Location: California, United States
Posted: September 26, 2007 at 2:40 AM / IP Logged  
i have a 1986 cadillac deville sedan and i have 4 aw1251se(audiobahn 12" woofers) and 1 a2200hct (audiobahn amp). two of the subwoofers were in a sealed box the measured 15H x 30W and 15D and the other two were in two seperate boxes that measured 14H x 14w x 9D  that are also sealed and i had them wired at one ohm to this amp and i broke tqo out of three.  the bigger box is cracked in the middle of the box how it broke i dont know. so any one have a suggestion on how i should design a stronger box. i used 3?4 mdf adn i was thinking of either using something bigger or doubleing the walls and the front . there is no damage to the subs or amp so any help would help thanks. 
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audiocableguy 
Copper - Posts: 630
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Joined: January 27, 2003
Location: Idaho, United States
Posted: September 26, 2007 at 10:15 AM / IP Logged  
This is very strange, usually the Audiobahn crap breaks first. I doubt those speakers and that amp cracked your box. It has got to be construction.
Did you use internal bracing? Was the area under the box flat? Was everything screwed and glued? How much space between the edge of the basket and the side of the box? do you have any picts?
3/4 MDF can take some serious compression. Doubling the mounting panel might help or fiberglass.
jl.w7 
Copper - Posts: 59
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Joined: September 23, 2007
Location: Alberta, Canada
Posted: September 26, 2007 at 10:40 AM / IP Logged  
ya I dont see how audiobahns could of cracked 3/4 MDF. A jlw7 maybe but .......... the MDF mustve been weak in that spot.
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sarcomax 
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Joined: November 09, 2005
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Posted: September 26, 2007 at 10:47 AM / IP Logged  
I had a 3/4 mdf box with 2 tens in it in my car when we were hit head on by a drunk driver at a combined speed of 100 mph... no damage to the box. The car on the other hand didn't survive.
DYohn 
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Joined: April 22, 2003
Location: Arizona, United States
Posted: September 26, 2007 at 11:12 AM / IP Logged  
Sounds like maybe it was made from particle board, not MDF.  Or something got dropped on the enclosures.  Or the guy's just a troll trying to start a flame war about Audiobahn.  i broke my speaker boxes -- posted image.
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jonathancullen 
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Joined: September 22, 2006
Location: United States
Posted: September 26, 2007 at 12:37 PM / IP Logged  

im sick right now but i cannot help but laugh at this thread. yes i could see if the mdf was weak and someone was jumping up and down on it for it to break. but i HIGHLY HIGHLY doubt any audiobahn could even cause strain on 3/4 inch mdf. come on its audiobahn........

alright point made. make a new box still_walkin

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xtremej 
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Posted: September 26, 2007 at 3:56 PM / IP Logged  
Look at his cardomain picsi broke my speaker boxes -- posted image. in his profile.
still_walkin 
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Posted: September 26, 2007 at 6:14 PM / IP Logged  
Yeah the boxes were srecewed glued and sealed and they were on a flat surface. I also used mdf. I also didn't drop them so I don't know. I thought about doubleing the face in the front where it broke. I have taken it out due to the fact I haven't built a new one . But the box is split in the center face of the box.. So I don't kno I've been bulding boxes for quite some time and I never broke a box.
1993 sdv
Alpine 4x6 6x9 5 1/4 swr-10d4
alpine v60
12.5 VGA flip down
Nettop pc w/10" touch screen
78nova
5-re audio 5x7 ,10" sub &
Xtx-500.5
"Take the faceplate off get the jumperpack"
techman93 
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Joined: October 28, 2006
Location: Pennsylvania, United States
Posted: September 26, 2007 at 11:10 PM / IP Logged  
I just have to ask....why full range speakers in the trunk on the lid facing down? Is it for looks? Or do you drive down Main St. With the trunk open? The whole interior kinda looks like 8th grade wood shop meets 1st grade erector set. Cloth over front speakers? Definitely needed to be addressed with something better then that. Overkill on the monitors which 2 are secured to the headrest by way of the erector set. I don't have any pics of my custom jobs but I can assure you they looked a lot cleaner then that.
aznboi3644 
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Posted: September 27, 2007 at 12:09 AM / IP Logged  
If the wood cracked from the subs...its poor construction.
I have a 1 cu ft sealed box that is held together only with glue...its help up for almost 3 years now...yeah it was glued and screwed...but then i removed all of the screws to see how strong the glue is...strong as hell to say.
Yeah and its ELMERS WHITE SCHOOL GLUE
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