Cap'N'Crunch Posted September 22, 2007 Report Share Posted September 22, 2007 i need some help on this one it will be for a 15" AP/SPL a 40hz (the subs F/S) wave = (rounds to) 7' x 4 so my port length should be 7' its a 15" sub, so i will need it to be 170"^2 im i correct? heres the design (its not to scale yet, i want to make sure im right before i sketch it up) any help would be appreciated Quote thats really him? you cant be serious. i knew there was something wrong with that kid. he's like the rap version of an emo kid. Dylan Dude = PWN3D on 2 different forums in one night Link to comment Share on other sites More sharing options...
Cap'N'Crunch Posted September 22, 2007 Author Report Share Posted September 22, 2007 bump Quote thats really him? you cant be serious. i knew there was something wrong with that kid. he's like the rap version of an emo kid. Dylan Dude = PWN3D on 2 different forums in one night Link to comment Share on other sites More sharing options...
JustinT Posted September 22, 2007 Report Share Posted September 22, 2007 your 5.75 isn't the right measurement. by the .75, im guessing your usin 3/4 mdf.......soooooooooo..............it would be 10.75 because half of the top line is 5" in itself Check out my builds......I just built a badass t-line Quote "IT SOUNDS SLOW MOTION AND STUTTERING"~~~~LOL 2 15" Fi BTLs 7.5 cf box @ 33hz Sundown SAZ-3500D Powermaster S3400 & D3100 Iraggi 300a alt SecondSkin - totally dead Knu wire Link to comment Share on other sites More sharing options...
Cap'N'Crunch Posted September 22, 2007 Author Report Share Posted September 22, 2007 your 5.75 isn't the right measurement. by the .75, im guessing your usin 3/4 mdf.......soooooooooo..............it would be 10.75 because half of the top line is 5" in itselfCheck out my builds......I just built a badass t-line i dont follow what your saying it you can modiy my design, it would probably help a little Quote thats really him? you cant be serious. i knew there was something wrong with that kid. he's like the rap version of an emo kid. Dylan Dude = PWN3D on 2 different forums in one night Link to comment Share on other sites More sharing options...
JustinT Posted September 22, 2007 Report Share Posted September 22, 2007 I can't figure out how to mod that pic but Instead of the inside length measurements: 39.125", 39.125", 5.75" Make them 36.625", 36.625", 10.75" Now that will be $20 Quote "IT SOUNDS SLOW MOTION AND STUTTERING"~~~~LOL 2 15" Fi BTLs 7.5 cf box @ 33hz Sundown SAZ-3500D Powermaster S3400 & D3100 Iraggi 300a alt SecondSkin - totally dead Knu wire Link to comment Share on other sites More sharing options...
Cap'N'Crunch Posted September 22, 2007 Author Report Share Posted September 22, 2007 I can't figure out how to mod that pic butInstead of the inside length measurements: 39.125", 39.125", 5.75" Make them 36.625", 36.625", 10.75" Now that will be $20 thanks and ill get that $20 to you by the 2nd tuesday of next week Quote thats really him? you cant be serious. i knew there was something wrong with that kid. he's like the rap version of an emo kid. Dylan Dude = PWN3D on 2 different forums in one night Link to comment Share on other sites More sharing options...
JustinT Posted September 22, 2007 Report Share Posted September 22, 2007 (edited) don't change the shape any......just the inside measurements, those are the correct ones to equal 7 feet haaaaaaaaaaaaaaaaaaa I just now got the SECOND tuesday part........."your a quick one" Edited September 22, 2007 by JustinT Quote "IT SOUNDS SLOW MOTION AND STUTTERING"~~~~LOL 2 15" Fi BTLs 7.5 cf box @ 33hz Sundown SAZ-3500D Powermaster S3400 & D3100 Iraggi 300a alt SecondSkin - totally dead Knu wire Link to comment Share on other sites More sharing options...
Cap'N'Crunch Posted September 22, 2007 Author Report Share Posted September 22, 2007 don't change the shape any......just the inside measurements, those are the correct ones to equal 7 feethaaaaaaaaaaaaaaaaaaa I just now got the SECOND tuesday part........."your a quick one" thanks for all your help man ill try to get the sketch up by tomorow and ill make a work log as soon as i get money BTW: im making to of these 2 AP/SPL 15s + T-Line + as much power as they can take = ??? we'll find out i guess Quote thats really him? you cant be serious. i knew there was something wrong with that kid. he's like the rap version of an emo kid. Dylan Dude = PWN3D on 2 different forums in one night Link to comment Share on other sites More sharing options...
Forevrbumpn Posted September 22, 2007 Report Share Posted September 22, 2007 AP SPL? Iam not familiar with that. Not all subs will sound good in a T-line. If its a dedicated SPL sub, Iam assuming the Qts to be high, if it is, your sub will play loudest with a more narrow bandwidth. 1 thing you can do to help with the sound is to line the tline with 1" of poly fill . It will help a little bit. Also, tapering the line would help some too. Basically start off with a narrow line, and slowly open to a larger mouth, that will allow the sub to play louder. If it is a higher Qts sub, you may want to taper the line backwards, start off large, and slowly close the line opening towards the end. Higher QTS will sound better with rock, techno, fast beat bass Lower qts will give you a better low end concentrated, gentle roll off sound wich would be great with rap, jazz, other low end bass tracks 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...
Cap'N'Crunch Posted September 22, 2007 Author Report Share Posted September 22, 2007 (edited) AP SPL? Iam not familiar with that.Not all subs will sound good in a T-line. If its a dedicated SPL sub, Iam assuming the Qts to be high, if it is, your sub will play loudest with a more narrow bandwidth. 1 thing you can do to help with the sound is to line the tline with 1" of poly fill . It will help a little bit. Also, tapering the line would help some too. Basically start off with a narrow line, and slowly open to a larger mouth, that will allow the sub to play louder. If it is a higher Qts sub, you may want to taper the line backwards, start off large, and slowly close the line opening towards the end. Higher QTS will sound better with rock, techno, fast beat bass Lower qts will give you a better low end concentrated, gentle roll off sound wich would be great with rap, jazz, other low end bass tracks specs: ATOMIC APOCALYPSE SPL UNITS AP150D2 Revc (ohms ) 1.00 Fo (Hz) 40.19 Sd (sqM) 0.089 Bl 13.87 SPLo (dB) 93.51 Xmax (mm) 10 Dvc (mm) 62.50 Qms (m.q.) 3.74 Qes (e.q.) .320 Qts (totQ) .296 Vas (liter) 72 Cms (uM-N) 64 Mms (gram) 229 and the 10mm x-max is bullshit they have MUCH more than that Edited September 22, 2007 by Cap'N'Crunch Quote thats really him? you cant be serious. i knew there was something wrong with that kid. he's like the rap version of an emo kid. Dylan Dude = PWN3D on 2 different forums in one night Link to comment Share on other sites More sharing options...
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