aznboi3644 Posted September 22, 2009 Report Share Posted September 22, 2009 Once you do it once then you see how easy it really is. Measure the middle of surround to middle of surround on the other side the divide by 2. Use the equation pi x radius x radius so for the E8 it was 6 1/4" pi x 3.125 x 3.125 and = 30^2" but forevrbumpn had me go up to 40^2". I'm not stupid...I know math. I was being sarcastic...the dude said CUBIC inches and port AREA. Two completely different measurements. 3D vs. 2D There is no conversion of volume to area Link to comment Share on other sites More sharing options...
rckstar Posted September 22, 2009 Report Share Posted September 22, 2009 how do you seal the 'lid' after you've fixed it with screws? ( I hope my English conveys what I mean ..) my motto: hit it, quit it, never admit it Link to comment Share on other sites More sharing options...
rizzy71 Posted November 2, 2009 Author Report Share Posted November 2, 2009 Got bored and made some vids the other day. Running around 100watts between both subs and they still get down pretty well, knocked alot of shit down in my room. BRENT1997 GMC Yukon1-DC xl18"Stetsom 2K5E3-Kinetik HC1800's 1967 Pontiac GTO Link to comment Share on other sites More sharing options...
jhmeg2 Posted November 2, 2009 Report Share Posted November 2, 2009 i worked this up for the SA8 39Hz 3/4 mdf and yes I will 45 all the corners this is just a quicky ////Alpine, Eclipse, Load Boss, Pheonix Gold, MB Quart,Digital Desings, Memphis, Stinger, Periphial, MTX, Visualogic Link to comment Share on other sites More sharing options...
wL<3bass Posted November 2, 2009 Report Share Posted November 2, 2009 Got to love 8s, low power, and tlines....you can sure surprise people with what you have and how much power. Vehicle: 1997 S10 Blazer 4dr 4X4 Exterior: Rear End Bagged, Black Grill, Lifted 2" Amplifiers: Rockford Fosgate T8004 & T10001bd Batteries: 2 Stinger SPV35, Kinetik HC2400 Electrical: Big 3, DC Power 290amp Alternator w/ MLA at 15.5v Enclosure: 4.2 ft³ @ 33Hz 84sq.in. of port (20sq.in. per cube) Headunit: Eclipse CD3200 w/ 80G iPod Mids/Highs: Rockford T152s (a-pillars), Rockford T162s (doors) Subwoofers: 1 15" Fi BL Fully Loaded Wire: All 1/0g Kicker Hyperflex My YouTube Videos My Fiberglass A-Pillar Build My "Seamless" Looking Box Build My DD1508 T-Line Bandpass Build "Seamless" w/ Acrylic Windows (for '05 TrailBlazer) My Stealth 8" Fiberglass Build (for '05 TrailBlazer) My Build For A Friend's '08 Cobalt 15" BL Sealed Off From The Trunk My feedback/references... Link to comment Share on other sites More sharing options...
rizzy71 Posted November 2, 2009 Author Report Share Posted November 2, 2009 Got to love 8s, low power, and tlines....you can sure surprise people with what you have and how much power. Found that out quickly. lol BRENT1997 GMC Yukon1-DC xl18"Stetsom 2K5E3-Kinetik HC1800's 1967 Pontiac GTO Link to comment Share on other sites More sharing options...
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