corey7733 Posted August 26, 2013 Report Share Posted August 26, 2013 i have a 2000 s10 ext cab. bought it with 2 15"subs in a custom box behind the seat. tigghttt fit. one sub crapped out so im just going to use 1 sub. i dont have any experience building ported boxes. i took all the measurements off the old box., just pretty much cut it in half and put the sub and port in the side instead of the top the old box had a round port in between the 2 subs. i would like to have a rectangular port this time. i have no idea how to tune a box/port. the sub is a 15" hcca orion competition series. i plan to be running roughly 1000 watts to it. i love loud bass and listen to alott of stuff. rock, rap, hip hop, some country. highs and mids are all focal components and amplified so im good there. if some one could just throw me some rough numbers to get a decent port in my box it would be be muchly appreciated. i dont even know where to start with the port numbers. i tried reading up on some stuff but it seems difficult for me to get my head around it Link to comment Share on other sites More sharing options...
rambo Posted August 26, 2013 Report Share Posted August 26, 2013 This box is tune to 36hz 5.977 cu.ft gross and 4.761 cu.ft net. It will play all genre of song listed. Set LPF on amp to 30hz. external dimension are 40w x 16h x 20d. Port will be 14.5h x 4w x 20L Link to comment Share on other sites More sharing options...
corey7733 Posted August 26, 2013 Author Report Share Posted August 26, 2013 what are these units? mm? inches? centimeters? Link to comment Share on other sites More sharing options...
corey7733 Posted August 26, 2013 Author Report Share Posted August 26, 2013 if my port is 20d, which im assuming means 20" deep, and my box is 20" deep, i'm not understanding how this would work? Link to comment Share on other sites More sharing options...
Krakin Posted August 26, 2013 Report Share Posted August 26, 2013 Your port area is horrendous. I would suggest instead of building the way pictured, and this is assuming you are trying to fit underneath a seat, to put the sub facing the front of the truck and port shooting into the pillar. Krakin's Home Dipole Project http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370 Krakin, are you some sort of mad scientist? I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . What you hear is not the air pressure variation in itself but what has drawn your attention in the two streams of superimposed air pressure variations at your eardrums An acoustic event has dimensions of Time, Tone, Loudness and Space Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears, thus no formula can achieve a definite effect for every listener. Link to comment Share on other sites More sharing options...
corey7733 Posted August 26, 2013 Author Report Share Posted August 26, 2013 id like to try to stay within the box dimensions i used in my pic i posted. this is with the seats all the way back and just high enough to still see my voltmeter on top of my stinger caps, there mounted where the pull out back seat used to be Link to comment Share on other sites More sharing options...
corey7733 Posted August 26, 2013 Author Report Share Posted August 26, 2013 double post Link to comment Share on other sites More sharing options...
Krakin Posted August 26, 2013 Report Share Posted August 26, 2013 You need around 100 in2 of port area to satisfy that sub. Krakin's Home Dipole Project http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370 Krakin, are you some sort of mad scientist? I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . What you hear is not the air pressure variation in itself but what has drawn your attention in the two streams of superimposed air pressure variations at your eardrums An acoustic event has dimensions of Time, Tone, Loudness and Space Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears, thus no formula can achieve a definite effect for every listener. Link to comment Share on other sites More sharing options...
corey7733 Posted August 26, 2013 Author Report Share Posted August 26, 2013 Your port area is horrendous. I would suggest instead of building the way pictured, and this is assuming you are trying to fit underneath a seat, to put the sub facing the front of the truck and port shooting into the pillar. like this? Link to comment Share on other sites More sharing options...
Krakin Posted August 26, 2013 Report Share Posted August 26, 2013 Yes, that orientation. May want to make the sub/port on different sides of the truck of each other. Krakin's Home Dipole Project http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370 Krakin, are you some sort of mad scientist? I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . What you hear is not the air pressure variation in itself but what has drawn your attention in the two streams of superimposed air pressure variations at your eardrums An acoustic event has dimensions of Time, Tone, Loudness and Space Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears, thus no formula can achieve a definite effect for every listener. Link to comment Share on other sites More sharing options...
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