building a box
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=110205
Printed Date: October 31, 2024 at 6:13 PM
Topic: building a box
Posted By: carguy411
Subject: building a box
Date Posted: December 31, 2008 at 10:56 AM
ok heres the story. i was putting in a system for a friend in a 2000 civic hatch. so ordered everything including the sub box cause its just easier than making it. but now we decided to go custom and the box i ordered is taking up to much room its a single 10 sealed hatchbox. the sub im using is a 10" mtx TR55. can someone help me come up with the size of a sealed box for this sub.i want it to be more rectangular and thinner than the hatch boxes like a regualr box. its only holding 1 sub. please let me know what u come up witht thanks
Replies:
Posted By: i am an idiot
Date Posted: December 31, 2008 at 7:50 PM
Do you know what kind of box volume the woofer would like to see? 1 Cubic Foot? 1.5 Cubic Feet?
Posted By: carguy411
Date Posted: January 01, 2009 at 2:20 AM
i believe its .7 - 1 cuft
Posted By: i am an idiot
Date Posted: January 01, 2009 at 6:22 AM
If you use 3/4 inch material to build the box, 12 X 12 X 17.25 will be just over 1 Cubic Foot. If you need the formula for figuring it out yourself, here it is. 1 Cubic Foot = 1728 Cubic Inches. Once you figure out the height and width you want to make the enclosure, simply divide 1728 by the height, then divide that number by the width, and the number you come up with is the depth you need to build it. All measurements need to be inside dimensions. So 1728/10.5 = 164.571/10.5 = 15.673. So a box 12 X 12 X 17.173 inches is exactly 1 Cu. Ft. of internal volume.
Posted By: DYohn
Date Posted: January 01, 2009 at 9:42 AM
Posted By: carguy411
Date Posted: January 01, 2009 at 11:56 AM
thanks guys . still a little confused is there any way i can make the box about 8 - 10" deep and make it longer so i have more room in front of thr box cause where gonna build afalse floor and put subs in front of it thats y i need more room
thanks
Posted By: i am an idiot
Date Posted: January 01, 2009 at 12:57 PM
The choices are endless, before we calculate another useless box for you, we need a little more info from you. So you want it 8 to 10 inches deep, I need to know if you want it 8 or 10 and I also need to know either a desired height or width. Then I can plug those 2 numbers in the directions stated above and see if I can come up with the other measurement for you.
Posted By: carguy411
Date Posted: January 01, 2009 at 2:09 PM
well i would say 8 cause that would give me even more space to work with. also hight wise the max would be 14 and for the length the max is 30" .but one question would the depth make a dif in sound or it doesnt matter? thank you for all your help
Posted By: i am an idiot
Date Posted: January 02, 2009 at 5:36 PM
The deeper the box is behind the woofer, the better it will sound. 12 x 12 x 17 deep will sound much better than 12 x 20 x 8 deep 22.75 x 14 x 8 deep is 1 cubic foot. 1728 / 12.5 / 6.5 = 21.25
Posted By: carguy411
Date Posted: January 03, 2009 at 2:05 AM
so you think that im better or with making the depth 10"instead of the 8 or just deal with a little less room and go with the 12 depth
Posted By: i am an idiot
Date Posted: January 03, 2009 at 7:17 AM
A couple inches will not make that big of a difference.
Posted By: carguy411
Date Posted: January 03, 2009 at 1:28 PM
so what you think is the best thing to do
Posted By: i am an idiot
Date Posted: January 03, 2009 at 2:23 PM
Best as in best sound, or as in more practical false door and space wise?
Posted By: carguy411
Date Posted: January 04, 2009 at 3:06 AM
both. i def want the best sound and will work around that with the floor f u think making it to shollow will hinder sound
Posted By: carguy411
Date Posted: January 06, 2009 at 1:35 AM
or should i just keep the box i have ad work around it.i really want to save some space but if that is going to affect the sound u think ishould build it?thanks
Posted By: i am an idiot
Date Posted: January 06, 2009 at 2:19 AM
That is really up to you. Do you want the extra space bad enough to build a new box? If you do build the new box, is it more important to have the best sound possible, or is the maximum amount of room more important? If you can't decide, maybe you can build 3 different boxes and try each one for a week or so, and then decide on one. I can only tell you what works and what won't work, but you really need to absorb all the info and make your own decision.
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