I was looking on eBay at boxes and came across a guy that builds custom boxes for cheap for those of you that wouldn't want to build your own. I told him I was looking into an Eclipse sw8102dvc and here is what he wrote back (oh, and I asked for 1"MDF):
The thickest we carry is 3/4" MDF, to get 1" we would have to special order it which would include an added fee. We've built a few boxes for the eclipse woofers, one particular 15" Aluminum using 3/4" MDF coated with fiberglass on the interior - it held up very well with no problems whatsoever. I recomend 3/4" because of the cost factor, we can layer it with fiberglass on the interior to help with strength and seal it tight, for less than the added cost of 1" MDF. I usually include measurements for you to look over, however I would hate to give you the wrong measurements - I need to check on the mounting depth and cutout diameter before I can give you accurate measurements for you to look over and OK.
Using 3/4" MDF sealed and carpeted with a terminal included and a double baffle would run you approximately $40.00.
Using 3/4" MDF sealed and carpeted with a terminal included and a doube baffle, with the interior of the box reinforced with fiberglass would run you approximately $55.00.
If you want to give me the zip code to ship the item to, I'll check on shipping costs for you. The costs should run anywhere from $20 - $35, I'm assuming in the lower range though.
Oh, and he is an Eclipse fan...
this guy cant be making a living building these boxes at that price! For a sub box that is 2 cu. ft. it takes at least a half a sheet of mdf. Mdf in AL costs about $22 per sheet (4' x 8'). Plus a good terminal at $4 -$6, and carpet. Your looking at about $20 labor for this box, I wouldn't build one for that to sell.
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2003 Silverado Ext. cab
Kenwood mp922
Kenwood kgc6042a EQ
JL Audio xr650-csi
MB Quart PSC 213
JL Audio 300/4
pair of JL Audio 12w6v2
JL Audio 1000/1
I agree with dcgc he has to be making very little. I would suggest you get a quote for 1 inch with a double baffle (2 inch) and a total volume of 1.25 cuft (make sure he calculates the baffle). If you can get it for around $100 then it’s not worth building yourself.
I asked about 1" but he said it would cost more because he would have to special order it. I will ask about how much more it costs though.
I would still glass all the inside seams, this is something I usually do as well with these subs.
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Top Secret, I can tell you but then my wife will kill me.
What he came up with was:
"Using 3/4" MDF External Dimensions: 9" x 18.5" x 18.25"
OR
Using 1" MDF External Dimensions: 9.75" x 19" x 18.75
Let me know if those would be ok. I called for special ordering of 1" MDF, it would run you an extra 35.77." Then to have it shipped to Washington would be 31.00.
So total, to have a 1" mdf box with the above mentioned dimensions internally coated with fiberclass would be about $122 shipped. Good price in my opinion.
Sounds like a good price to me. As far as the volume goes it looks good however if your going with a double baffle he needs to include that in the volume calculations.
Wow thats insanely cheap!
Shipping would be a ton, sounds to good to be true to me.....Hope you dont get screwed over.
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im building a box how often do i space the braces