CleanSierra Posted September 28, 2013 Report Share Posted September 28, 2013 For a normal ported box(4th order) or a 4th order bandpass for the 2" port and 30 Hz tune? Which style enclosure were YOU referring to with 30Hz tune and a 2" port? 30Hz is too low for a bandpass and we'll not have enough useable bandwidth(more than likely wont get into the 40s with any output) A 2" round or aero port well be retarded inefficient and NOT be nearly enough port, even with multiples. Im not the one you want to try to troll. Just a fyi for you. Link to comment Share on other sites More sharing options...
sundown escort Posted September 28, 2013 Report Share Posted September 28, 2013 For a normal ported box(4th order) or a 4th order bandpass for the 2" port and 30 Hz tune? Which style enclosure were YOU referring to with 30Hz tune and a 2" port? 30Hz is too low for a bandpass and we'll not have enough useable bandwidth(more than likely wont get into the 40s with any output) A 2" round or aero port well be retarded inefficient and NOT be nearly enough port, even with multiples. The numbers were purely for example. How the sealed portion can be 1:2 with the ported portion and its easier to design two boxes but just use a double mounting plate inside. Link to comment Share on other sites More sharing options...
cgallmore Posted September 29, 2013 Author Report Share Posted September 29, 2013 For a normal ported box(4th order) or a 4th order bandpass for the 2" port and 30 Hz tune? Which style enclosure were YOU referring to with 30Hz tune and a 2" port? 30Hz is too low for a bandpass and we'll not have enough useable bandwidth(more than likely wont get into the 40s with any output) A 2" round or aero port well be retarded inefficient and NOT be nearly enough port, even with multiples. The numbers were purely for example. How the sealed portion can be 1:2 with the ported portion and its easier to design two boxes but just use a double mounting plate inside. So you are saying use Torres and design a sealed box then double or triple the air space and design a ported box and just combine the 2? Link to comment Share on other sites More sharing options...
sundown escort Posted September 29, 2013 Report Share Posted September 29, 2013 For a normal ported box(4th order) or a 4th order bandpass for the 2" port and 30 Hz tune? Which style enclosure were YOU referring to with 30Hz tune and a 2" port? 30Hz is too low for a bandpass and we'll not have enough useable bandwidth(more than likely wont get into the 40s with any output) A 2" round or aero port well be retarded inefficient and NOT be nearly enough port, even with multiples. The numbers were purely for example. How the sealed portion can be 1:2 with the ported portion and its easier to design two boxes but just use a double mounting plate inside. So you are saying use Torres and design a sealed box then double or triple the air space and design a ported box and just combine the 2? That would be the easiest way. But draw it out and you can use full pieces for the bottom/top/sides to make one box. Your ported portion may very well be 3 times the size because of the area lost from the port. Link to comment Share on other sites More sharing options...
icanthear Posted October 8, 2013 Report Share Posted October 8, 2013 You are missing to tell what vehicle, the specs of the box, you could just have a weak or misaligned front stage, but if it sounds boomy or loose then that's different, likely a box issue.its a 2005 toyota rav4 and it plays a god awful noise above 35 hz. and im running 800 watts and its rated for 600. i feel like i dont get any power from it unless my radio is turned up all the way. i want to play a little higher notes than what im at now. Im in the process of building a 4th order as well. The larger the sealed section, the more low end frequency you will get. im tuning mine around 42hz and that is pretty low for a 4th order. For your setup as i see described above id say do 1.5-1.75 ft^3 sealed and whatever ratio you choose would determine ported volume(2:1 would make it 3-3.5ft^3 ported). and tune between 48-50 to get your high end frequency. Link to comment Share on other sites More sharing options...
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