Box help
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Silver Member Username: RosrockMichigan Post Number: 167 Registered: Mar-09 | i need someone to help find the cubic feet and what its tuned to. This is a dual 12 box but ill just give the one side. its an aero port or flare port. bottom depth 15.75", top depth 12.75", height 12", width 14.25", port length 12.25", port diameter 3.7/8", port white material "thickness" 1/8"   |
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Silver Member Username: RosrockMichigan Post Number: 168 Registered: Mar-09 | and those are all inside dimensions |
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Gold Member Username: Kyle_lowePost Number: 1090 Registered: Apr-06 | that would 2.73 cubic feet after port displacement tuned to roughly 26hz i think that is not enough port area though and it is tuned way too low you might want to consider using two ports |
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Silver Member Username: RosrockMichigan Post Number: 172 Registered: Mar-09 | 2.73?? are u sure man? someone on caraudio.com was telling me the complete opposite saying that its 1 cu ft tuned to 40hz |
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Silver Member Username: RosrockMichigan Post Number: 173 Registered: Mar-09 | sigh, im very confused now, so can someone else please tell me what they come up with |
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Platinum Member Username: Rovin1 15 = 152.5 DBs ...Trinidad & T... Post Number: 16308 Registered: Jul-05 | im lazy to check it but u can figure it out on ur using : ... http://www.the12volt.com/caraudio/boxcalcs.asp http://www.carstereo.com/help/Articles.cfm?id=31 |
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Silver Member Username: RosrockMichigan Post Number: 174 Registered: Mar-09 | there is a wood wall in the middle of the box... aka 2 seperate enclosures basically.. i think ur thinking the 2 sides are connected or something |
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Silver Member Username: CwruckPost Number: 153 Registered: Feb-10 | that wood in the middle is meant to seal off each sub.. so that 2.73 is the total and if you divide that by 2 then you get the amount to each chamber to each sub but looking at the dimensions i can say 2.73 is much too big and that white thing is called pvc pipe. not a good box honestly, you would want another pipe in there, but the box seems too small to be ported, it has the size of a small sealed box for 2 12s |
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Platinum Member Username: GlasswolfPost Number: 13593 Registered: Dec-03 | the following link has everything required to figure box volume and port tuning http://www.bcae1.com/spboxnew2.htm If you e-mail Perry (the site owner of BCAE) to say thanks, tell him I said hi. He's a great guy |
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Gold Member Username: Kyle_lowePost Number: 1091 Registered: Apr-06 | if they are separate chambers then each chamber would be 1.33 after port displacement tuned to roughly 37 hz i was thinking it was a single chamber with one port. that was the reason for the numbers i posted earlier. and yeah, most likely that box is too small to be ported. i would try to remove the pvc ports and seal up the holes if i were you. |
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Silver Member Username: RosrockMichigan Post Number: 175 Registered: Mar-09 | yea man... actually thats exactly what i was doing this morning, just nailing some wood over the outside port hole lol. im like screw this.. the previous ownder i bought the stuff from said the guy he bought it from was doing competetions LOL. i just go o ok... |
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