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Enclosure Design & Construction
Tuning trunk car setup. Help?
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<blockquote data-quote="KTMrida4life" data-source="post: 7594477" data-attributes="member: 637865"><p>A few weeks ago I had RAM designs on here design me a box for 3 sundown SA 8s on 1800W rms. The box is 1.8ft^2 after displacements and has a slot port tuned to 33 hz.</p><p></p><p>Its pretty loud inside the car, but I'm almost positive that its probably 10db louder in my trunk. I know your going to lose some dbs from trunk to car, but not this many..</p><p></p><p>Heres why I think it should/can be louder. Folding down my rear seat does nothing to affect the loudness as far as I can tell. Besides that, I have some SERIOUS trunk rattle, and when I open my trunk, all the bass just goes out that way.. which it should the way its setup now, but if setup correctly as a loud trunk car, shouldn't it still be going into the car instead? Not 100% sure on that.. also, not to mention, I saw a video on youtube of a dude with 4 8s on 2k getting some serious flex in his car. His setup is different, but similar equipment. He has a 4th order box which I'm pretty sure I dont have room for unless assembled in my trunk. Heres a video of his..</p><p></p><p>[MEDIA=youtube]TVtA-Cepq60[/MEDIA]</p><p></p><p></p><p>Heres a really crappy vid of my setup I made a few days ago, Ill try to make a better one soon in the daytime.</p><p></p><p><img src="http://a6.sphotos.ak.fbcdn.net/hphotos-ak-ash4/388263_10151129193345720_567885719_22169012_36115468_n.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Thats how the box is setup now. My trunk is TINY as you can see. Theres a massive hump in the front of my trunk right behind my rear seats that makes things rather difficult. You can see it here.</p><p></p><p><img src="http://a2.sphotos.ak.fbcdn.net/hphotos-ak-ash4/388867_10151129192885720_567885719_22169004_1828177933_n.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>At this point, I've lost all my trunk space which is totally fine cause it keeps people from throwing their crap in my car, but I know there has to be a way to tune this setup better. I have another 8 Im going to recone very soon and would have to build another box for it, but I want opinions on what to do. What is all this about sealing off my trunk? How would I go about doing this? I see lots of people folding their rear seats down, which is fine, but I cant keep mine down all the time. That is silly, and my whole rear seat folds down as a unit, no 60/40 or anything. I can port through my rear speaker deck openings, but I've been told that sounds like crap by one person. Any other opinions on that?</p></blockquote><p></p>
[QUOTE="KTMrida4life, post: 7594477, member: 637865"] A few weeks ago I had RAM designs on here design me a box for 3 sundown SA 8s on 1800W rms. The box is 1.8ft^2 after displacements and has a slot port tuned to 33 hz. Its pretty loud inside the car, but I'm almost positive that its probably 10db louder in my trunk. I know your going to lose some dbs from trunk to car, but not this many.. Heres why I think it should/can be louder. Folding down my rear seat does nothing to affect the loudness as far as I can tell. Besides that, I have some SERIOUS trunk rattle, and when I open my trunk, all the bass just goes out that way.. which it should the way its setup now, but if setup correctly as a loud trunk car, shouldn't it still be going into the car instead? Not 100% sure on that.. also, not to mention, I saw a video on youtube of a dude with 4 8s on 2k getting some serious flex in his car. His setup is different, but similar equipment. He has a 4th order box which I'm pretty sure I dont have room for unless assembled in my trunk. Heres a video of his.. [MEDIA=youtube]TVtA-Cepq60[/MEDIA] Heres a really crappy vid of my setup I made a few days ago, Ill try to make a better one soon in the daytime. [IMG]http://a6.sphotos.ak.fbcdn.net/hphotos-ak-ash4/388263_10151129193345720_567885719_22169012_36115468_n.jpg[/IMG] Thats how the box is setup now. My trunk is TINY as you can see. Theres a massive hump in the front of my trunk right behind my rear seats that makes things rather difficult. You can see it here. [IMG]http://a2.sphotos.ak.fbcdn.net/hphotos-ak-ash4/388867_10151129192885720_567885719_22169004_1828177933_n.jpg[/IMG] At this point, I've lost all my trunk space which is totally fine cause it keeps people from throwing their crap in my car, but I know there has to be a way to tune this setup better. I have another 8 Im going to recone very soon and would have to build another box for it, but I want opinions on what to do. What is all this about sealing off my trunk? How would I go about doing this? I see lots of people folding their rear seats down, which is fine, but I cant keep mine down all the time. That is silly, and my whole rear seat folds down as a unit, no 60/40 or anything. I can port through my rear speaker deck openings, but I've been told that sounds like crap by one person. Any other opinions on that? [/QUOTE]
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