Sealed box cubic feet ? - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 06-14-2005
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Sealed box cubic feet ?

I am making a sealed box for 2 10's. I was wondering and this is what i assumed, that if the minimum airspace for a sealed box for a particular sub is say .60 cubic feet, then if the box is for 2 subs i would just double that correct? So i would need at least 1.2 cubic feet? Thanks.
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Old 06-14-2005
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a 1 cu/ft box sealed box would be perfect for 2 10s. depending on the subs you should have gotten a spec sheet that explains what the perfect vu level for the subs would be and how to determine it. hence you could build your perfect box off of that.
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Old 06-14-2005
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Don't have the subs yet, but i have an idea of the dimensions i'm going to use on the box. I am using Alpine SWS-1042D's. They have a mounting depth of 6.5". The box will be 29" long, 11" tall, 12" face, 10" deep on the bottom and 6" deep on top.
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Old 06-14-2005
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Separate the airspace so that each sub has it's own .6 cu ft. That way if one sub blows you can still listen to the other. Be SURE that .6 cu ft will sound GOOD, one ten in a properly built box will sound much better than two tens in a box thats not built to spec. The .6 cu ft is just a suggested size from the manufacturer, you'd be better off calling the Alpine and asking them about vehicle specific specs.
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Old 06-14-2005
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For at most the cost of a long distance phone call, you should be able to call any manufacturer and speak to their tech support. They should be able to tell you the optimum size for a sealed (or ported, or bandpass, etc etc) box. Heck, most should be available online somewhere. Off hand I'd think .6 to .75 should be the average.
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Old 06-15-2005
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0.6 cubic feet should be fine for a Ranger. I agree with Lone_Ranger01; you should keep the enclosure divided in the middle. I have the same sub in my truck and it sounds great. I built the box to fit over the center of the back wall in my extended cab.
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Old 06-29-2005
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Yup, that's what I would do as well. Basically make one box that's 1.2 ft^3, split it down the middle, that way each sub has its .60 ft^3 and 2 subs aren't sharing the same 1.2 ft^3. This will sound MUCH better, as stated earlier above...

The sub should have come with a spec sheet. You could probably look it up online at the manufacturer's website or call them as stated earlier. Each sub is different. For my Infinity Reference 1230W, Infinity suggests a 2.0 ft^3 enclosure ported/vented, or a 1.75 ft^3 sealed enclosure...
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Old 06-29-2005
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Quote:
Originally Posted by Lone_Ranger01
Separate the airspace so that each sub has it's own .6 cu ft. That way if one sub blows you can still listen to the other. Be SURE that .6 cu ft will sound GOOD, one ten in a properly built box will sound much better than two tens in a box thats not built to spec.
Thats what I recommend. You'll get more thumb that way also.
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