nCOMP1337 Posted March 31, 2010 Report Share Posted March 31, 2010 Box outside dimensions will be 12 x 20 x 38 The black area is 1 inch wide all around. The green area is the entire port which is nearly the whole box, each area is measured in its entirety and the 45 angles were not accounted for. I am planning on three 10s right now for my car, i could have larger subs but in order to have more space in my trunk and not have to modify my trunk in any way then 12 inches is the tallest i can have the box allowing me to have it as close to the back seats as possible. I was wanting a 1/4 or if i have to at least an 1/8 wave Tline box. I hope i did the design right, i have seen where people have made subs firing into the port directly and thats not as good, so thats why I have the small opening into the actual port area from the sub area. The specs I drew this up on were 37 Hz i think with a 10 inch sub. I am curious what others think and if they think this will work. I understand with more subs you have to account for adequate cubic feet for each sub and port area, so I am hoping these will work alright in this box. Quote Link to comment Share on other sites More sharing options...
HHR Ed Posted March 31, 2010 Report Share Posted March 31, 2010 looks like not enough space for the woofers and the port end is choking them off. Quote Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
HHR Ed Posted March 31, 2010 Report Share Posted March 31, 2010 I would suggest increasing box space and decreasing port length. Stick with a simple ported box and use a basic box calculator to help you. Quote Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
bassHZ Posted March 31, 2010 Report Share Posted March 31, 2010 how do u learn how to make perfect sub boxes is there like some kind of school and is all just math?? Quote Link to comment Share on other sites More sharing options...
Cashdollar2009 Posted March 31, 2010 Report Share Posted March 31, 2010 how do u learn how to make perfect sub boxes is there like some kind of school and is all just math?? Ummm... LOTS OF PRACTICE/TESTING/EXPERIENCE. Quote 1997 Chevrolet Cavalier Two 12" DC Audio XL M2'sCrescendo Audio BC5500d Current Scores: 150+ out the Trunk On 6/30/2011 at 1:11 AM, 'Ray' said: Acoustical energy is free. Electrical energy is not. Link to comment Share on other sites More sharing options...
qu1cks1lver56 Posted March 31, 2010 Report Share Posted March 31, 2010 the way you have it is similar to a couple t-lines ive seen, but your opening into the port seems much too small. you should look into a tapered t-line. Quote First Gen Xterra: Always changing DNX 690HD RF 360.3RF T3002RF T4004RF T10001bdSilver Flute 6.5"s Tang Band 1" TweetersSundown X18 in 7cubes net tuned to 32hz Trust me .25 Blows your Load. Link to comment Share on other sites More sharing options...
Forevrbumpn Posted March 31, 2010 Report Share Posted March 31, 2010 looks like an attempt at a tline? If you did this as a tline, you would have phase issues as a ported box, phase issues as HHR said, going with ported, do ported, shorten port length, and increase box size/airspace if doing a tline, the back wave of every woofer will need to have equal pressure entering the port/line or you will have phase issues with the box Quote I have a ritual called "terminator". I crouch in the shower in the "naked terminator" pose. With eyes closed I crouch for a minute and visualize either Arnie or the guy from the 2nd movie. I then start to hum the T2 theme. Slowly I rise to a standing position and open my eyes. It helps me get through my day. The only problem is if the shower curtain sticks to my terminator leg. It sorta ruins the fantasy. Link to comment Share on other sites More sharing options...
cmamtower Posted March 31, 2010 Report Share Posted March 31, 2010 Ummm... LOTS OF PRACTICE/TESTING/EXPERIENCE. practice/testing/experience/failing lol thats the best way to learn Quote apparently you dont get the fact that the subaru was wrapped around a pole. and by the status of your comment, im guessing your mouth is too. Vehicle: 1997 Honda Civic EX Exterior: 55w 5k Headlights and 35w 3k JDM Fogs. Lowered. Sittin on steelies right now Amplifiers: Rockford Fosgate P450.4 Batteries: Kinetik HC 800 Electrical: Big 3 in 1/0 Enclosure: n/a : ( Headunit: Clarion VZ409 Mids/Highs: Pheonix Gold Rsd6.5's in the Front Doors Subwoofers: n/a : ( Wire: Knukoncepts 1/0 and 4g Future Upgrades: 20% tint all around, GC/Koni coilovers, body work (fml) lol Link to comment Share on other sites More sharing options...
bassHZ Posted March 31, 2010 Report Share Posted March 31, 2010 practice/testing/experience/failing lol thats the best way to learn i guess so man just like everything else Quote Link to comment Share on other sites More sharing options...
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