KenC210 Posted June 18, 2012 Report Share Posted June 18, 2012 Good write Kids Cadi Power Wheel Build2007 Ford Escape Build2012 Toyota Corolla Build 2013 Toyota Tundra Link to comment Share on other sites More sharing options...
AgentTyler Posted June 18, 2012 Report Share Posted June 18, 2012 This allowed me to understand Torres a lot better. Thank you very much! 1998 Ford Contour Head Unit: Pioneer DEH-P8400BH Front/Rear Door Speakers: Alpine SPR-68 (Type-R 6x8) Door Speaker Amplifer: Kicker ZX650.4 Subwoofers: 1 SSA Icon 12" Amplifier: MB.Quart 1.1500d Second Battery: XS Power D925 Link to comment Share on other sites More sharing options...
Crandis16 Posted June 18, 2012 Report Share Posted June 18, 2012 STICKIE THIS My Red zx2 Build Log My Black zx2 Build Log My Red zx2 UBL Link to comment Share on other sites More sharing options...
Omega5002 Posted June 18, 2012 Report Share Posted June 18, 2012 I agree, sticky this 2003 Kia Sorento Team Subsonic LowsTeam Bassin' on a Budget2016 Rebuild Under Construction Best score: 150.2 at 40hz (3k, 2 Custom HDC3 15's) Usaci style(door open, in the kick) Link to comment Share on other sites More sharing options...
mttornquist Posted June 18, 2012 Author Report Share Posted June 18, 2012 Updated to prevent bottle necking in the port. My Build Log: http://www.stevemead...lmost-complete/ Link to comment Share on other sites More sharing options...
mttornquist Posted June 19, 2012 Author Report Share Posted June 19, 2012 ***How to Account for port area*** If you want to take the port flare into account here is yow to do so. It affects the box very little so it isn't a requirement but it is good to know how to do. Here is our flare: Since is is so small we will treat it as if it were just 45 degrees. We will calculate it as if it were this: Start by finding the area of your triangle. Do this by multiplying base times height. .75*.75=.5625 inches^2 Normally when finding area of a triangle you would divide by 2, however since we have 2 triangle this is not necessary. Next, multiply this area by the height of your port (7.5 in this case) .5625*7.5=4.21875 inches^3 Then divide by 1728 to change it to feet^3 4.21875/1728=0.00244 feet^3 This is the displacement of your port flare. Add it into the bracing displacement as a negative number (because it adds volume, rather than uses) to be more exact. It is not a requirement by any means that you do this to build a good box, but it will help with acuracy. It should only affect port length by about 1/16 of an inch at most. So it has a small impact but for those of use who are picky on that kind of stuff you now know how to account for it. My Build Log: http://www.stevemead...lmost-complete/ Link to comment Share on other sites More sharing options...
mttornquist Posted June 25, 2012 Author Report Share Posted June 25, 2012 I feel like this needs to stay at the top! I see the question asked all the time and this does a good job of answering My Build Log: http://www.stevemead...lmost-complete/ Link to comment Share on other sites More sharing options...
Trey_Dog650 Posted June 25, 2012 Report Share Posted June 25, 2012 I have a few questions. Do you know the general port area size per subwoofer size. I think that would help a lot of people. And when doing a L slot port are you suppose to do the bend the same distance from back wall as the width of the port. And how do you measure the depth of an L port. Just a few questions I had and to have the answers here I think would make it easy 13 Kia Forte Build! 07 Hyundai Accent Build ***Super Seller*** N8ball2013 And then he gets to say ok all you guys were right. im sorry for being a dummy poo poo head. Link to comment Share on other sites More sharing options...
Sanitarium Posted June 25, 2012 Report Share Posted June 25, 2012 Although i've seen these threads before, i don't think i've seen em as elaborated nor as illustrated. Nice work compiling this guide for beginners. Link to comment Share on other sites More sharing options...
mttornquist Posted June 26, 2012 Author Report Share Posted June 26, 2012 I have a few questions. Do you know the general port area size per subwoofer size. I think that would help a lot of people. And when doing a L slot port are you suppose to do the bend the same distance from back wall as the width of the port. And how do you measure the depth of an L port. Just a few questions I had and to have the answers here I think would make it easy I'm not sure about what a specific port area size you should use but when designing your box torres gives you a range to stay between. (someone else chime in if the is a general guideline per sub size) As for the port, Yes you stay the same distance from the back as you do on the side. The port is measured directly down the center and ideally a port would have a round curve but because of how difficult it would be to make that a 45 is used. My Build Log: http://www.stevemead...lmost-complete/ Link to comment Share on other sites More sharing options...
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