BLH Posted May 4, 2012 Report Share Posted May 4, 2012 i just bought 2 15 inch they are brz15d4 hifonics. the amp i will be runing to them is hfi 1500d series 1500w hifonics. My box will be 15 inchs high 45inches long and 18 inch wide (5.61 cubic feet) i want to use 4 3 inch round ports tune to 32 to 34 hzs subs on top ports on back 2 on each side it will be in a suv (2002 mounteer) the reson why it can only be 18 inchs wide is my boys weelchair still need to fit in the back so if i need to we can go a little higher it will be a daily driver i want to hit hard and sound good i will be using 3/4 mdf Can some help me with how long my ports need to be and if all this is going to work out ok i got 10.28inches for how long they need to be 33 hertz is this wright i dont no how to do speaker and port displacement any help will be greatly appreciated Quote Link to comment Share on other sites More sharing options...
john253a Posted May 4, 2012 Report Share Posted May 4, 2012 (edited) In this section, where the sticky posts are, there is a post called Torres, in there, there is a program in the first post called Torres, download it and play around with it, I'm mobile at moment so can't run the numbers for you. Edited May 4, 2012 by john253a Quote Link to comment Share on other sites More sharing options...
john253a Posted May 4, 2012 Report Share Posted May 4, 2012 ran some numbers 4x 3" no way you will get port noise and will sound like crap 4x 4" on the other hand is the min idd run but 2x6" 22-25" long would be ideal Quote Link to comment Share on other sites More sharing options...
BLH Posted May 4, 2012 Author Report Share Posted May 4, 2012 I have the 1 sheet of MDF left after box is done can some help with a port on the bottom on the back Quote Link to comment Share on other sites More sharing options...
john253a Posted May 4, 2012 Report Share Posted May 4, 2012 if you do a 2x common walled, L-port on drivers side 8" x 8" x 26" long if box is 15x45x18 4cuft net 34.2 hz 1 common wall C-port (bottom middle) 4"(h)x 15"(w) x 26" long 4cuft net 33.9hz Quote Link to comment Share on other sites More sharing options...
john253a Posted May 4, 2012 Report Share Posted May 4, 2012 why not do port up? Quote Link to comment Share on other sites More sharing options...
BLH Posted May 4, 2012 Author Report Share Posted May 4, 2012 Would that work better Quote Link to comment Share on other sites More sharing options...
BLH Posted May 4, 2012 Author Report Share Posted May 4, 2012 I wanted to say thank you for all the help u have been giving me Quote Link to comment Share on other sites More sharing options...
BLH Posted May 4, 2012 Author Report Share Posted May 4, 2012 Ok if I face the port up and what u were thinking for the number 2 idea u gave I drew it out I could get a port 24 1/2 how many herts give me Quote Link to comment Share on other sites More sharing options...
BLH Posted May 5, 2012 Author Report Share Posted May 5, 2012 If I put two more layers on top I could get 26 would that work Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.