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Found 1 result

  1. Im designing a box for my new improved build and i jus want to verify that im doing it all correctly. The box will be for two 15 inch SSA EVIL series subs. But for right now i have two dc lvl 4 15's that will go into the box temporarily. So it will be designed mainly around the EVIL's. The car its going into is a 2007 Scion Tc. I measured out max dimensions and came up with a box that i think turned out very well. i wanted it tuned low, mid 30's and low 31's maybe. Heres what i came up with::: Pic from sketchup (Copied and pasted from MS word) Box Measurements Maximum limits for the SCION TC Width = 37 inch max (pushing) Depth = 38 inch max (also pushing) Height = 15 inch max after double baffled 14.25 inch height before baffle and 12.75 internal height for mounting depth Subwoofer Displacement- .22 per sub (EVIL SSA 15) = .44 total .21 per sub (DC LVL 4 15) = .42 total Bracing Displacement = Using 2x4’s(1.5”x3.5”) = ( .125x.292x??? ) Using max internal Height – Up and down bracing – 1.5”x3.5”x12.75”.039 CuFt x3 (Three braces) Total displacement in CuFt = 0.117CuFt Using max Width internal – Side to side (Port wall to right wall) 1.5”x3.5”x35.5” .108CuFtx2(two braces) Total displacement in CuFt = 0.216CuFt Using max Depth internal – front to back bracing – 1.5”x3.5”x36.5” .111CuFtx2 (also two braces) Total displacement in CuFt = 0.222CuFt Box bracing displacement for max measurement specs – Total = 0.555 CuFt Total Box Displacement for max dimensions including woofers and braces Using SSA EVIL 15’s = .995 CuFt displacement Using DC LVL 4 15’s = .975 CuFt displacement 8.1CUFT without displacement 7.105 cuft displacement with EVIL 15’s and bracing 7.125 cuft with dc 15’s and bracing Port dimensions 12.75 H x 7.5 W =95.625sqin With EVIL 15’s – SqIn of port per cuft = 13.5 With DC LVL 4 15’2 – SqIn of port per cuft = 13.4 Tuning with EVIL 15’s = 30.47 Hz tune Tuning with DC 15’2 = 30.425 Hz tune Does all of this look correct? Am i missing anything that is throwing me off or is this perfect?
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