pantantler Posted August 19, 2011 Report Share Posted August 19, 2011 ok i have come up with a couple designs. and i built this one for now.. i would like to tune it in the 32-40 hz range... or if there is a better range for this speaker. please reccomend subs 2 kicker L7 12 " its what i can afford and already have.. box is 4.93 sf w 30.5 d 22.5 h 15.5 outer dimensions .. made of 3/4 MDF i cant use 6 inch ports.. none around here for me to get.. so i am limited to 4" aeros i drew a quick pick to show where the ports need to face out..sry dimensions on the pick are inner measurements. how many and how long of ports/ or what is best for these speakers.. just some extra info.. i have a single preefab box made by kicker for the l7 12.. that has 1 round port 5" id 11" long Link to comment Share on other sites More sharing options...
rickyfromthe407 Posted August 19, 2011 Report Share Posted August 19, 2011 Let me just clear something up really quick and I can get to designing you one... You put " box is 4.93 sf w 30.5 d 22.5 h 15.5 outer dimensions made of 3/4" MDF" Does this mean you already have the box made and you're going to modify it to make the ports fit? And please post the pic you said you drew, I assume the ports are going to be external? To be honest with you, I think instead of trying to modify the existing box, you could just start a new one... It would be a lot easier. But either way, anything is "do-able" Post up that pic! Current 4 10"s System! 1/0 Power Wire All Around + Big 3 - $140 Rockford Fosgate T2500-1BD - MSRP $1800 (4) Memphis M3 10" Subwoofers 1600watts $300ea. = $1200 XS D6500 $245.65 PIONEER AVH-P5200DVD 7" Head Unit = $430 Soundstream SC-6T Component 6.5" FRONT $60 Pioneer TS-A1673R 6.5" REAR $85 A Bangin system! = PRICELESS! Link to comment Share on other sites More sharing options...
ChevyBoy95 Posted August 19, 2011 Report Share Posted August 19, 2011 4 4in aeros (or port tube aka PVC) 18 inches long giving 36hz and 11.6 sqin per cube. Best Score to Date : 160.5 dB Outlaw (47Hz)[4 XM 15's & 2 Taramps Bass 12k's] BL : http://www.stevemeadedesigns.com/board/topic/147800-chevyboy95s-4-15s-7krms-wall-1533-db-on-half-power/YouTube: http://www.youtube.com/hitemwiththeflex/ Link to comment Share on other sites More sharing options...
rickyfromthe407 Posted August 20, 2011 Report Share Posted August 20, 2011 4 4in aeros (or port tube aka PVC) 18 inches long giving 36hz and 11.6 sqin per cube. That'll work w/ the dimensions given I suppose. Haha. Good job ChevyBoy Current 4 10"s System! 1/0 Power Wire All Around + Big 3 - $140 Rockford Fosgate T2500-1BD - MSRP $1800 (4) Memphis M3 10" Subwoofers 1600watts $300ea. = $1200 XS D6500 $245.65 PIONEER AVH-P5200DVD 7" Head Unit = $430 Soundstream SC-6T Component 6.5" FRONT $60 Pioneer TS-A1673R 6.5" REAR $85 A Bangin system! = PRICELESS! Link to comment Share on other sites More sharing options...
pantantler Posted August 20, 2011 Author Report Share Posted August 20, 2011 sorry here is the dimensions of the outer box.. i had to build it in the car because its in a hatch with limited space. i am going to modify this box for the ports. the subs have to be facing up and the ports facing towards the cabin hope this pic helps // ya i was having troubles trying to figure out how to post a pic on this forum =( Link to comment Share on other sites More sharing options...
pantantler Posted August 23, 2011 Author Report Share Posted August 23, 2011 4 4in aeros (or port tube aka PVC) 18 inches long giving 36hz and 11.6 sqin per cube. thx .. i made the ports today.. i need to learn how to tune ports. ( boxes ) hope this works Link to comment Share on other sites More sharing options...
pantantler Posted August 30, 2011 Author Report Share Posted August 30, 2011 ok i was looking over this and i know i dont know how to tune a box.. but i was wondering if i add all 4 ports will my air space for the subs be way less now?? i know the sub needs a minimum of 1.75 - 3.25 max each .. so i need a minimum of 3.5 sqf or air space for 2 subs.. should i build the box bigger or stick with this? if i build the box bigger i have enough space for 1 more sqf the new max size box i can fit would be height 15.5 width 36 depth 22.5 giving me a inner 5.87 Link to comment Share on other sites More sharing options...
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