Subwoofer box design, is this okay
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Gold Member Username: BestmankindLos Angeles, CA USA Post Number: 3393 Registered: Oct-05 | i know this is the amp section but the sub section is down. i am building a box for my subs and this is the design i came up with. in order for me to tune my box to 28hz the ports has to be this long. would this work. it will be a 1.85 cuft per chamber tuned to 28hz.  |
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Gold Member Username: James1115Ct Post Number: 5443 Registered: Dec-04 | looks good man |
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Gold Member Username: BestmankindLos Angeles, CA USA Post Number: 3394 Registered: Oct-05 | thanks james. so the ports zig zagging won't affect the output in anyway? |
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Gold Member Username: BestmankindLos Angeles, CA USA Post Number: 3395 Registered: Oct-05 | also when calculating the length of the port, do i measure the outer wall of the port or the inner wall of the port. |
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Silver Member Username: Dustin3Tigard, Or U.S. Post Number: 691 Registered: Oct-05 | r u talking about the width or length? |
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Silver Member Username: Dustin3Tigard, Or U.S. Post Number: 693 Registered: Oct-05 | are you using pvc chad? |
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Gold Member Username: BestmankindLos Angeles, CA USA Post Number: 3397 Registered: Oct-05 | no its a slot ported box. |
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Gold Member Username: SouthernrebelMonroe, Louisiana USA Post Number: 2605 Registered: Mar-04 | measure the center line of the port...not the wall. |
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Gold Member Username: BestmankindLos Angeles, CA USA Post Number: 3401 Registered: Oct-05 | thanks marshall. on the diagram above i measure the inner wall so thats why the port was long. i did what you said and now the port and this is what i came up with. its not all screwed and glued down yet. i just placed the pieces to take the picture.  |
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Gold Member Username: B101Queen City, NC USA Post Number: 2156 Registered: Sep-05 | awwww SHHHHHT  ohh ohhhhh That just made me happy Looking really good right there, so when you gonna start on mines Chad? Menace |
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Gold Member Username: BestmankindLos Angeles, CA USA Post Number: 3406 Registered: Oct-05 | thanks B. i think the treos will sound awesome in there. i wanted to do a interchangeable ports like marshall but its too hard. marshall knows what he is doing so i guess its easy for him. |
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Gold Member Username: B101Queen City, NC USA Post Number: 2167 Registered: Sep-05 | they will LOVE that box  interchangable ports are hard, also must be sealed nice and tight when they are in. u got me think a dual port setup  That wood also looks thick, what is it 1" ? |
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Gold Member Username: BestmankindLos Angeles, CA USA Post Number: 3408 Registered: Oct-05 | no its only 3/4. i might put another layer on the front but i doubt it. i might just put edead on the front piece to reduce the vibration. |
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Silver Member Username: LewassBoomfield Hills, MI USA Post Number: 523 Registered: Jan-06 | Chad, you should check out that ABC box that guy did on sounddomain. PVC half-pipes would greatly reduce any port noise, also, when you go to put the lid on it, sand down all the top edges flat, and use a layer of thick double sided sticky foam to cover all the top edges, then when you screw that lid on, it will squeeze down on the foam and be 100% air tight. |
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Gold Member Username: 54danny54Betsy layne, Kentucky..GO... USA duh Post Number: 2153 Registered: Nov-04 | lol am i the only one on this forum who hasnt figured out how to calculate slot ports? any links guys? |
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Silver Member Username: Dustin3Tigard, Or U.S. Post Number: 700 Registered: Oct-05 | hey chad, what did you use to stick the mdf to the side of the box, like the port. did you just cut out the size of peice you needed then glue it on the side? i'm not a box builder at all so i'm just askin |
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Silver Member Username: Dustin3Tigard, Or U.S. Post Number: 701 Registered: Oct-05 | also, what site did you use to find out ur ports? length and stuff |
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Silver Member Username: LewassBoomfield Hills, MI USA Post Number: 524 Registered: Jan-06 | P.S. That box reminds me of the rockford fosgate logo, heh. Looks great. |
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Gold Member Username: BestmankindLos Angeles, CA USA Post Number: 3414 Registered: Oct-05 | lewass....thanks for the idea. i don't know about the half pipe idea (its a good one but seems like a lot of work) but i will do that double sided foam thing. bassman3.......in the picture i just placed it there to take the picture but i will first glue it then screw it from the side of the box. also this is the site i got the calculation for the slot port length. http://www.carstereo.com/help/Articles.cfm?id=31 |
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