Terry Zona Posted March 20, 2012 Author Report Share Posted March 20, 2012 maybe i need to do a slot port for daily and a smaller box with aero's to compete? Quote Link to comment Share on other sites More sharing options...
Joe X Posted March 20, 2012 Report Share Posted March 20, 2012 Yes I would do a box specifically to compete..or I guess you will lose..lol.. after all is a couple 12"s box, no big deal to exchange. Quote Link to comment Share on other sites More sharing options...
Terry Zona Posted March 20, 2012 Author Report Share Posted March 20, 2012 what slot port size for these 12's Quote Link to comment Share on other sites More sharing options...
Joe X Posted March 20, 2012 Report Share Posted March 20, 2012 Is your box already built, if so, is it fully or partially assembled? Quote Link to comment Share on other sites More sharing options...
Terry Zona Posted March 20, 2012 Author Report Share Posted March 20, 2012 all but the bottom is complete Quote Link to comment Share on other sites More sharing options...
Joe X Posted March 20, 2012 Report Share Posted March 20, 2012 Ok so here are the port dimensions: Enclosure Specifications: Fb = 35.094 Hz Vb = 3.285 ft^3 Subwoofer Mounting = Front Mounted External Height = 12 in External Width = 40.75 in External Depth = 20 in Port Width = 4 3/4 in Cut Sheet List: * All Dimensions in Inches. * Wood Thickness is 3/4 for all Parts. Shared Port Internal Assembly Parts: 2 x Front to Back = 16 1/8 x 10 1/2 2 x Extension = 3 13/16 x 10 1/2 A second baffle layer on the top should be added if possible, if you already have it le me know as some calculations may change. If you can do angled cuts, I will give you infos on the 45s and the center deflector that can improve performance of the box, a side port option is available in case you prefer it. Quote Link to comment Share on other sites More sharing options...
Terry Zona Posted March 20, 2012 Author Report Share Posted March 20, 2012 thank you, i have not added a second baffle yet. i think i can do 45's. on the extensions are they at the end of the port wall (where it would be narrower to back wall) or to side of the port wall? what program does all of this? Quote Link to comment Share on other sites More sharing options...
Joe X Posted March 20, 2012 Report Share Posted March 20, 2012 thank you, i have not added a second baffle yet. i think i can do 45's. on the extensions are they at the end of the port wall (where it would be narrower to back wall) or to side of the port wall? what program does all of this? Let me show you all you can do inside this type of design: The center deflector is most important optimization as it avoids the lateral airstreams colliding head on (it has to be done correctly as shown), but this shows other optimizations and bracing that can be done, You can figure out the length of the port parts with any calculator and/or sketchup (measuring along the centerline of the ducts ). If your dimensions don't include the double baffle that's best, I placed the second layer on top of your original dimensions so the design above does not change, just place the second layer on the top if you want to do the bouble baffle, it's highly recommended. Quote Link to comment Share on other sites More sharing options...
Terry Zona Posted March 21, 2012 Author Report Share Posted March 21, 2012 that is awsome, thank you very much Quote Link to comment Share on other sites More sharing options...
Joe X Posted March 21, 2012 Report Share Posted March 21, 2012 Ok Terry Zona, about the center deflector you need to make sure that the width never goes lower than 2 3/8" so making that piece larger than it needs to be will detune the port, if I can help with anything let me know. Quote Link to comment Share on other sites More sharing options...
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