Ryan929 Posted January 20, 2015 Report Share Posted January 20, 2015 So I am planning on doing a wall with 8 hds3 12s, started with : L:60 W:27 H:45 Then I took off 3" from each for wood (double all the way around) .75"x4=3" So I had L:57 W:24 H:42 Dived each by 12 so I could turn the inches into feet and got L: 4.75 feet W: 2 feet H: 3.5 feet Then multiplied those together and got 33.25 cubes Then after sub displacement .78cu per sub .78x8=6.25cu so, 33.25-6.25= 27cu So, 27 cubes after displacement then if I give each sub 2.5 cubes 2.5x8=20cu which leaves me with 7cubes. So, my question is how much port area do I need? Do I have enough space left over (7cu)? I will want the box to be tuned around 32hz. And I will be putting about 8-10k on them. Link to comment Share on other sites More sharing options...
99blazer Posted January 21, 2015 Report Share Posted January 21, 2015 Its kinda hard reading are you triple baffling or double baffling. and your subs are roughly .14 to .16 cuft ea not .78. and 08 Ford F150 Link to comment Share on other sites More sharing options...
Ryan929 Posted January 21, 2015 Author Report Share Posted January 21, 2015 For some reason I thought the website said .78 per sub.. Idk probably misread something. And I will be doubling the box all the way around. Link to comment Share on other sites More sharing options...
Jeff4661 Posted January 21, 2015 Report Share Posted January 21, 2015 He means a double baffle.. if I understand correctly.. .78 a sub holy shi$ I can only imagine the size of that... Must be using a hybrid lol I kid I kid.. Current build 05 Yukon SLT http://www.stevemeadedesigns.com/board/topic/195350-jeffs-05-yukong-wall-build/ Link to comment Share on other sites More sharing options...
SQL50 Posted January 21, 2015 Report Share Posted January 21, 2015 8 of them? Jesus Christ, a buddy of mine has two of the same model 15s on a aq 2200, no wall, did a 150 @ 49 hz in a 2 door blazer. Is 8 really necessary? Lol. Link to comment Share on other sites More sharing options...
99blazer Posted January 21, 2015 Report Share Posted January 21, 2015 well what I did was took your first set of measurements and took off 1.5inches per measurement so 43.5h 58.5d and 25.5w. that way u could build your box with these measurements then add your extra baffles on the box that way it doesn't effect your volume. and I did a port of 42h 9.75w 20l bring it to 16sq in per foot tuning to 32hz. I used 3 common walls. but overall its 25cubes tuned at 32hz. I would take a picture of torres showing you but I can post pictures on here because I am using IE. and as for the displacement you probably read the vas stat 08 Ford F150 Link to comment Share on other sites More sharing options...
SQL50 Posted January 21, 2015 Report Share Posted January 21, 2015 ^ You know port area by sq ft isn't right? Link to comment Share on other sites More sharing options...
99blazer Posted January 21, 2015 Report Share Posted January 21, 2015 nvm I typed it wrong. its 16sqinches per cubic foot. but the total for the whole box is 409.5sq inches 08 Ford F150 Link to comment Share on other sites More sharing options...
Ryan929 Posted January 22, 2015 Author Report Share Posted January 22, 2015 Yeah I did read the vas stat.. Not sure what I was thinking.. And I took off 3inches because the first set of measurements was my MAX deminsions. So I see the way you did it but that wouldn't work. But with these measurements that I took and having 20 cubes total for the subs + displacement, will I have enough area left over for port? I was planning on doing the port horizontally down the middle so Id have 4 subs above and 4 subs below the port. And the reason for doing 8 is I figure go big or go home right? Haha Link to comment Share on other sites More sharing options...
99blazer Posted January 24, 2015 Report Share Posted January 24, 2015 just find the inside volume and use that at your gross. and do your port off of that. 08 Ford F150 Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.