Noel989 Posted December 11, 2013 Report Share Posted December 11, 2013 Read this thread http://www.stevemeadedesigns.com/board/topic/38791-torres-box-tuning-calculator-updated-818/?fromsearch=1 It explains a lot of the questions you have and it's a step into learning yourself Build Log - http://www.stevemead...-cruiser-el-pt/ Link to comment Share on other sites More sharing options...
bkolfo4 Posted December 12, 2013 Report Share Posted December 12, 2013 I will apologize if my view point offends you and you experience, and please share with me your proof or any other proof of how a larger port area affects bandwidth, and or peaks in the response; as you have not tried to prove your side of the argument, or I missed it, but if not you can once again stop directly insulting me. Kraken - it is not worth the fight. I gave up and no longer post in any port area threads. You will hear it over and over - "Big ports are only good for SPL setups" Hmmm. So the ideal minimum calculation is for SPL only. Interesting. Not what I understand from Vance's loudspeaker cookbook or my last setup with (4) 15" subs, 11.7 cuft net, and 400 sqin tuned to 34 Hz that played music awesome down to 30 Hz. "Too much port area is bad below tuning" Duh - that is how ported boxes work! If you need to play lower, tune lower, select a different driver, etc. "Smaller ports have more bandwidth" When I see this, I think "this person has no idea how a ported enclosure works". Enough said. I have even seen people post "big ports don't have enough back pressure and will act like it is playing free air". This one is worse than the bandwidth idea. You can't win. Current system: 1997 Blazer - (4) Customer Fi NEO subs with (8) American Bass Elite 2800.1s Previous systems: 2000 Suburban - (4) BTL 15's and (4) IA 40.1's = 157.7 dB at 37 Hz. 1992 Astro Van - (6) BTL 15's and (6) IA 40.1's = 159.7 dB at 43 Hz. Link to comment Share on other sites More sharing options...
shanesauce Posted December 12, 2013 Report Share Posted December 12, 2013 Dude you have made like 3 different threads asking the same thing... Give me the max dimensions you have to work with and will give you all your specs and a cut list. Max dimensions are Length- 33inches Width- 16inches Height- 13inches Box recommended amount of air space for the subs is 1.65cu ft If you were to build a box to your max dimensions it would only give you 3 cubes of air space and you need at least 3.2 not including the port. So you might want to look into a sealed setup or different drivers. - 2012 Mustang 3.7 Manual - Audio under construction Link to comment Share on other sites More sharing options...
GueroZ28 Posted December 12, 2013 Author Report Share Posted December 12, 2013 Dude you have made like 3 different threads asking the same thing... Give me the max dimensions you have to work with and will give you all your specs and a cut list. Max dimensions areLength- 33inches Width- 16inches Height- 13inches Box recommended amount of air space for the subs is 1.65cu ft If you were to build a box to your max dimensions it would only give you 3 cubes of air space and you need at least 3.2 not including the port.So you might want to look into a sealed setup or different drivers. Well i tried this with the box calculator and sketchup Width- 32.5 Height- 13 Length- 16 Gives me 3.36ft^3 And the port is 3in wide Tuned at 42hz i think My current box is 46hz Am i doing it right? Link to comment Share on other sites More sharing options...
shanesauce Posted December 12, 2013 Report Share Posted December 12, 2013 Let's say your max dimensions are what you said earlier, take whatever thickens material you are using and multiply it by two and then subtract from each dimension like I did below. 31.5 x 14.5 x 11.5 = 5,252/ 1728 = 3 cubic feet. This is just a square box without a port, once you figure in the port it would be roughly 3.5 - 4 cubic feet in size. - 2012 Mustang 3.7 Manual - Audio under construction Link to comment Share on other sites More sharing options...
shanesauce Posted December 12, 2013 Report Share Posted December 12, 2013 Your port area would need to be around 36 to 48 square inches and for music tune around 35hz. I would try to be more in depth but every time I reply on here I am headed to bed. - 2012 Mustang 3.7 Manual - Audio under construction Link to comment Share on other sites More sharing options...
Guest Posted December 12, 2013 Report Share Posted December 12, 2013 32.5 wide, 13 high, and 16 deep is 2.99cuft internally. idk where you got the 3.3 cubes from. Link to comment Share on other sites More sharing options...
Joe X Posted December 12, 2013 Report Share Posted December 12, 2013 It will need to be sub/port up due to the lack of depth but taller since your dimensions are insufficient, 17 tall, or not as tall if you can go wider. OP just quoting myself in case you missed the reply. Link to comment Share on other sites More sharing options...
GueroZ28 Posted December 12, 2013 Author Report Share Posted December 12, 2013 32.5 wide, 13 high, and 16 deep is 2.99cuft internally. idk where you got the 3.3 cubes from. How would it change after adding the port or does it stay the same? Link to comment Share on other sites More sharing options...
GueroZ28 Posted December 12, 2013 Author Report Share Posted December 12, 2013 Let's say your max dimensions are what you said earlier, take whatever thickens material you are using and multiply it by two and then subtract from each dimension like I did below. 31.5 x 14.5 x 11.5 = 5,252/ 1728 = 3 cubic feet. This is just a square box without a port, once you figure in the port it would be roughly 3.5 - 4 cubic feet in size. Ok so the port is added in between that or is the port added after that? What i mean is do i have to make the box bigger to add the port? Link to comment Share on other sites More sharing options...
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