Jani Laasonen Posted September 20, 2013 Report Share Posted September 20, 2013 Hi! Anyone got ideas for 4th order enclosure Digital Designs 512b woofer? I have made some calculations with Winisd but im not quite sure of the chamber volumes. I want to get the box peaking around 40Hz, witch i believe is the peak frequency of the car. So what kind of chamber volumes you would suggest to one 12" woofer? Port will be 6" or 8" depending of length and tuning. Link to comment Share on other sites More sharing options...
Dd9515 king Posted September 20, 2013 Report Share Posted September 20, 2013 DD's dont like sealed. A 6th would be better but they are a lot harder. Link to comment Share on other sites More sharing options...
Krakin Posted September 20, 2013 Report Share Posted September 20, 2013 The 512b has an EBP of 49 so it will work better in a correctly 4th order than a 6th. Please know what you are talking about before you recommend something. Krakin's Home Dipole Project http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370 Krakin, are you some sort of mad scientist? I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . What you hear is not the air pressure variation in itself but what has drawn your attention in the two streams of superimposed air pressure variations at your eardrums An acoustic event has dimensions of Time, Tone, Loudness and Space Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears, thus no formula can achieve a definite effect for every listener. Link to comment Share on other sites More sharing options...
Jani Laasonen Posted September 21, 2013 Author Report Share Posted September 21, 2013 So, if i build the 4th order box, what kind of volumes im looking if i ratio is 2:1? maybe 1.4 cubic feet sealed/2.8 cubic feet ported? Link to comment Share on other sites More sharing options...
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