Nikitaaa Posted November 8, 2012 Report Posted November 8, 2012 So I've been playing around with 4th order ideas. I'm thinking of a sealed chamber on either side of a ported chamber. I'm using two woofers so there will be one sub on each side of the ported chamber. My question is should I place the woofers in the middle of the internal sealed baffle right next the the port in the ported chamber, or move the subwoofer all the way back at the end of the box so they utilize the entire ported chamber and are a good amount away from the port? I just want to avoid cancellation or loading issues. Keep in mind the subs will be reverse mounted so the magnets will be about 5" away from each other. Any input will be appreciated as this is my first design. 2007 M/T Honda Civic Coupe EX (4) Sundown Audio X-8's (2) Ampere Audio 3800.1's (3) Stinger SPV-44 Batteries (1) Mechman 240 3:1 Ratio 4th order sealed from the trunkTEAM NWSPLBest termlab scores to date in Honda trunk:151.7db legal (official) IASCA trunk 3 classBest termlab scores to date in my walled Subie:152.9db legal (unofficial) IASCA advanced 2 class155db outlaw
HHR Ed Posted November 8, 2012 Report Posted November 8, 2012 Can you draw a diagram of your plan? Contrary to popular belief, cancellation is not really an issue inside enclosures. Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion
Nikitaaa Posted November 8, 2012 Author Report Posted November 8, 2012 Can you draw a diagram of your plan? Contrary to popular belief, cancellation is not really an issue inside enclosures. I'll try to find an example of a design similar to mine. While I do that, I'll let you guys know the specs of my box- 4.6sealed (2.3 x2) 12 ported 18 port per 1^3 Tuned to 50hz 2007 M/T Honda Civic Coupe EX (4) Sundown Audio X-8's (2) Ampere Audio 3800.1's (3) Stinger SPV-44 Batteries (1) Mechman 240 3:1 Ratio 4th order sealed from the trunkTEAM NWSPLBest termlab scores to date in Honda trunk:151.7db legal (official) IASCA trunk 3 classBest termlab scores to date in my walled Subie:152.9db legal (unofficial) IASCA advanced 2 class155db outlaw
Nikitaaa Posted November 8, 2012 Author Report Posted November 8, 2012 Hopefully there will be no loading or cancelations with the woofers so close to eachother/ the port. I think the magnets will be like 5" away. 2007 M/T Honda Civic Coupe EX (4) Sundown Audio X-8's (2) Ampere Audio 3800.1's (3) Stinger SPV-44 Batteries (1) Mechman 240 3:1 Ratio 4th order sealed from the trunkTEAM NWSPLBest termlab scores to date in Honda trunk:151.7db legal (official) IASCA trunk 3 classBest termlab scores to date in my walled Subie:152.9db legal (unofficial) IASCA advanced 2 class155db outlaw
Nikitaaa Posted November 9, 2012 Author Report Posted November 9, 2012 Here is the exact design without the port wall. Anybody think I will experience any cancelation or loading issues? 2007 M/T Honda Civic Coupe EX (4) Sundown Audio X-8's (2) Ampere Audio 3800.1's (3) Stinger SPV-44 Batteries (1) Mechman 240 3:1 Ratio 4th order sealed from the trunkTEAM NWSPLBest termlab scores to date in Honda trunk:151.7db legal (official) IASCA trunk 3 classBest termlab scores to date in my walled Subie:152.9db legal (unofficial) IASCA advanced 2 class155db outlaw
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