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Silver Member Username: DeadrabitPost Number: 510 Registered: Jun-07 | so i have not ordered my subs yet but i am going to get BL 18s. i just dont know what upgrades i am going to get of if i am going to just get stock ones. every one says that the box will need to be 12 cuft or bigger. i have room to make it much bigger. what do u think the best size will be? tuning to 37 hz looking for lots of spl... if that even matters |
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Gold Member Username: JakeyplaysbassSt. Louis, MO / ASU Post Number: 2965 Registered: Jul-05 | I would do 12cuft tuned to 37 (if you want more SPL) with ~120sqin of port. Slot ported box witht he subs up port back. All of these numbers after displacement. |
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Silver Member Username: DeadrabitPost Number: 512 Registered: Jun-07 | the subs and port will face front.. making that wall thing. so r u saying if its 120sqin of port with 12cuft it will be 37hz? |
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Silver Member Username: ShadeMoxee, Wa U.S. Post Number: 666 Registered: Nov-06 | this is what he's recommending u to use for best results. |
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Gold Member Username: JakeyplaysbassSt. Louis, MO / ASU Post Number: 2968 Registered: Jul-05 | No no no no... You will have to do the math to get port lenght/tuning. The 120sqin of port is the area of the "face" of the port like... 5"wide by 24" tall. With 2 18s you will want to have alot of port area. My box for the havocs was ~15cuft before displacement with the port area being 127.5sqin (3"x42.5") tuned to 27hz. After all the sub/port displacement it dropped it to less than 12cuft. When using a big port you lose internal space fast. |
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Silver Member Username: DeadrabitPost Number: 513 Registered: Jun-07 | so i am wanting to make the biggest opening for the port that i can? that makes sense i guess. it will prolly be more like 18 cuft but close to 12 after braces subs and port displacment |
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Gold Member Username: HdubbTeam Revolution Post Number: 3801 Registered: Nov-04 | i think you may be a little mixed up ben. and you have me a little confused....are you wanted to build a wall? or a regular enclosure? |
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Silver Member Username: DeadrabitPost Number: 518 Registered: Jun-07 | i am wanting to build a wall. look at this. this is what i was wanting to do. http://www.soundsolutionsaudio.com/forum/index.php?showtopic=14693&st=0 that is what i am calling a wall.. when u think wall is there something else? i have seen a few other things... maybe. but this is all i know of on how to build |