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Fi BL18 Ported Box Design Help
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<blockquote data-quote="SirPudge" data-source="post: 8258658" data-attributes="member: 660852"><p>Hello, all. For anyone who saw my other thread, thanks for all the help! My new questions do not relate to electrical, so I am making a new thread.</p><p></p><p>I am buying a BL18, all purty'd up. Getting Dual 2 Ohm(going to run both in parallel), Cooling option, and red logo. I am now designing a box for it, and need some help/advice. It will be amp'd by a ppi bk1800.1d.</p><p></p><p>I have 37(top)/44(bottom) depth X 17 height X 37 width to work with. I have a 2007 Monte Carlo LT, for the record. Is RE box calculator a reliable/good designer? I have been using it and most of my questions are based on what it has given me. The way my back seats are shaped, the wedge part of the depth would be facing the front of the vehicle. If this would adversely affect sound, then it will have to remain a square. I also have no easily available(that I know of) way of cutting angles, so maybe a square/rectangle box is for the best.</p><p></p><p>Since finding them on YouTube, I have been fascinated with hair tricks. I have been told to tune low, so was thinking of going at 30hz. I mostly listen to dubstep(Liquid Stranger, Excision, Bass Mekanik, etc.) but have a bit of everything from time to time. The way I understand it, I should be as close as possible to the top of the subs 5-8ft^3 range as well. If a hair trick is not possible on my system, then I would like to have a fairly even mix of volume and quality.</p><p></p><p>Due to size limitations, the woofer will need to face up, so I was thinking having 16 or 16.5 as the height, to avoid excursion issues(BL18 has 18mm). I was hoping to leave about .5 inches off per side to allow for wiggle room(not accounted for in numbers near start of post). I will want the port facing back for optimum volume, yes? And is there any type of port that is louder? I figure on slot since I have the space for it, and should it be a long thin slot on the bottom or a larger upright slot on one edge of the face? Another port question: Do I need to have a bend in it like RE has? This really lowers my cubic footage, which is lower than I'd like already.</p><p></p><p>Link to RE Box Calculator: <a href="http://www.reaudio.com/box.php" target="_blank">RE AUDIO - Box Calculator</a></p><p></p><p>tl;dr I am getting a BL18, questions are as follows:</p><p></p><p>Is RE a good box designer?</p><p></p><p>Will a wedge with the "face" pointing forward with port facing back ruin sound?</p><p></p><p>Woofer has to face up. Is a rear facing port the loudest?</p><p></p><p>What type of port is better?</p><p></p><p>If slot, is it better long and thin or bigger and upright?</p><p></p><p>Whichever I go with, do I need a L-Turn in it like RE does?</p></blockquote><p></p>
[QUOTE="SirPudge, post: 8258658, member: 660852"] Hello, all. For anyone who saw my other thread, thanks for all the help! My new questions do not relate to electrical, so I am making a new thread. I am buying a BL18, all purty'd up. Getting Dual 2 Ohm(going to run both in parallel), Cooling option, and red logo. I am now designing a box for it, and need some help/advice. It will be amp'd by a ppi bk1800.1d. I have 37(top)/44(bottom) depth X 17 height X 37 width to work with. I have a 2007 Monte Carlo LT, for the record. Is RE box calculator a reliable/good designer? I have been using it and most of my questions are based on what it has given me. The way my back seats are shaped, the wedge part of the depth would be facing the front of the vehicle. If this would adversely affect sound, then it will have to remain a square. I also have no easily available(that I know of) way of cutting angles, so maybe a square/rectangle box is for the best. Since finding them on YouTube, I have been fascinated with hair tricks. I have been told to tune low, so was thinking of going at 30hz. I mostly listen to dubstep(Liquid Stranger, Excision, Bass Mekanik, etc.) but have a bit of everything from time to time. The way I understand it, I should be as close as possible to the top of the subs 5-8ft^3 range as well. If a hair trick is not possible on my system, then I would like to have a fairly even mix of volume and quality. Due to size limitations, the woofer will need to face up, so I was thinking having 16 or 16.5 as the height, to avoid excursion issues(BL18 has 18mm). I was hoping to leave about .5 inches off per side to allow for wiggle room(not accounted for in numbers near start of post). I will want the port facing back for optimum volume, yes? And is there any type of port that is louder? I figure on slot since I have the space for it, and should it be a long thin slot on the bottom or a larger upright slot on one edge of the face? Another port question: Do I need to have a bend in it like RE has? This really lowers my cubic footage, which is lower than I'd like already. Link to RE Box Calculator: [URL="http://www.reaudio.com/box.php"]RE AUDIO - Box Calculator[/URL] tl;dr I am getting a BL18, questions are as follows: Is RE a good box designer? Will a wedge with the "face" pointing forward with port facing back ruin sound? Woofer has to face up. Is a rear facing port the loudest? What type of port is better? If slot, is it better long and thin or bigger and upright? Whichever I go with, do I need a L-Turn in it like RE does? [/QUOTE]
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