95Burbancalldsnow Posted April 5, 2012 Report Share Posted April 5, 2012 Ok, so I am tired of the pre-fab boxes I got from soniceletronix (nothing wrong with them they are just mass produced boxes and I want more from my subwoofers). also with woofer displacement they are just too small from all that I have read. Let me say thank you for anyones advice and help I know I havent been on this forum very long or posted a hole lot im just trying to learn all that I can so I can actually contribute to this forum instead of being another person giving bad or wrong advice to some one. So im running a JBL GTO 1400.1 on 2 ohms rated at 1500w RMS amp to 4 pioneer TS-W309D4's. The boxes im currently running according to external measurements should have about 3 cu.ft but then factor in the 1.19 cu.ft displacement of the woofer plus the displacement of the port and the center wall between chambers approx. box volume is around .40 or smaller. I would like to build a box woofers up, port back all this in a 1995 suburban. I have been playing around with Torres box calc with size and dimensions as well as port design. I was considering doing a rectangular port along the bottom of the box. Anyway I wanted to get peoples opinions I took a screen shot im going to post of my woofers specs as well as the box calc and design I came up with keep in mind this is the first time ive ever built a box much less a portted box, so please give me a little slack lol thanks all! Quote Link to comment Share on other sites More sharing options...
95Burbancalldsnow Posted April 6, 2012 Author Report Share Posted April 6, 2012 Some one please let me know if I'm on the riight track or point me in the right direction Quote Link to comment Share on other sites More sharing options...
Rev. Wrath Posted April 6, 2012 Report Share Posted April 6, 2012 (edited) 4.76 is WAAAYYYY too high for woofer displacement. No way they take up 1.19 each. EDIT: I can't find exactly how much they displace each, but I'd say it's more in the .15-.20 range. Edited April 6, 2012 by Rev. Wrath Quote Link to comment Share on other sites More sharing options...
Kranny Posted April 6, 2012 Report Share Posted April 6, 2012 talk to Ram designs or 412cvx or joe x about box designs. Quote Link to comment Share on other sites More sharing options...
95Burbancalldsnow Posted April 6, 2012 Author Report Share Posted April 6, 2012 Rev. I'm going off what pioneers website and the owners manual states, thank you for the contacts for box design kranny Quote Link to comment Share on other sites More sharing options...
mbdblue Posted April 6, 2012 Report Share Posted April 6, 2012 Rev is right....owners manual says .064 cubic feet per woofer for displacement....your probably reading it in liters Quote AA-Atomic-Clif Designs-DC-Diamond-Digital Designs-Directed-Eclipse-Fi-Hertz-Hifonics-Kenwood-Memphis-Phoenix Gold-Pioneer-PPI-PSi-Stinger-Sundown-TC Sounds-Viper-Zapco Link to comment Share on other sites More sharing options...
95Burbancalldsnow Posted April 6, 2012 Author Report Share Posted April 6, 2012 Sorry rev if I sounded harsh, I was just saying what I was basing it off of you are probally right when looking at other speakers vas much more powerful speakers taking up less space then what I had listed Quote Link to comment Share on other sites More sharing options...
95Burbancalldsnow Posted April 6, 2012 Author Report Share Posted April 6, 2012 I must be looking at the wrong thing, isn't vas the displacement of the woofer? The manual I downloaded from their website says 1.19 cu.ft and 33. Somthing for liters I'm sure you all would know better then me I'm just making a "noob" mistake. Quote Link to comment Share on other sites More sharing options...
95Burbancalldsnow Posted April 6, 2012 Author Report Share Posted April 6, 2012 Yup....I'm an in educated fool lol you all are right thank you for pointing this out to me. Quote Link to comment Share on other sites More sharing options...
mbdblue Posted April 6, 2012 Report Share Posted April 6, 2012 if you go on pioneer's site and download the owner's manual, it says it right under specs..... Vas- Equivalent air compliance. The volume of air that has the same compliance ("springiness") as the driver's suspension. Because less air is more "springy" than more air, a large Vas represents a "loose" suspension ^^taken from subwoofer DIY Quote AA-Atomic-Clif Designs-DC-Diamond-Digital Designs-Directed-Eclipse-Fi-Hertz-Hifonics-Kenwood-Memphis-Phoenix Gold-Pioneer-PPI-PSi-Stinger-Sundown-TC Sounds-Viper-Zapco Link to comment Share on other sites More sharing options...
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