412 CVX Posted March 14, 2012 Report Share Posted March 14, 2012 @six if i get bored and have some free time i might give it a shot. just give me the Sd (in^2) and the port length required. i'm too lazy to do the maths myself Just say no to Ground Pounder Customs. My temp system build log More box buildssome cars do over 170db with one sub, so clearly my two 12"s can do that in my car, with my knowledge too! look out bitches! I'm with captain stupid. Link to comment Share on other sites More sharing options...
Ross21 Posted March 17, 2012 Report Share Posted March 17, 2012 Hi all, I'm new here and I'm quite noob about this...I understood how to find the port are and length, but how do I calculate the complessive box volume? Has the distance between internal lines to be the same ? I'm sorry, I'm still learning english, maybe I missed something </ Thanks Link to comment Share on other sites More sharing options...
STEvil Posted March 18, 2012 Report Share Posted March 18, 2012 there is no set volume MickyMcD - "Capable of making some serious trouser flapping volumes at where's-my-testicles frequencies, the Servo-Drives used to be fairly jaw dropping..." Any time you have have a power wire next to your frame put some rubber hosing (or cut up an innertube) around it. The wire is bound to wiggle (due to driving or flex) and the casing will eventually wear through. Hammerdown... 1% no links to outside websites, business related FB/YT pages allowed. Link to comment Share on other sites More sharing options...
Roll-o Posted March 31, 2012 Report Share Posted March 31, 2012 just stumbled across these T-line calculators the first is a single fold on axis, the second is a single fold off axis the third is a dual fold on axis http://dbdynamixaudio.com/single-fold-on-axis-transmission-line-enclosure-calculator/ http://dbdynamixaudi...ure-calculator/ http://dbdynamixaudio.com/dual-fold-on-axis-transmission-line-enclosure-calculator/ let us know what you think. Link to comment Share on other sites More sharing options...
Nigel Wallace Posted April 11, 2012 Report Share Posted April 11, 2012 Hey Steve or anybody? I just found out about the T-line and it seems to be spreading like wild fire. Why not, it rocks. Steve laid out the recipe real well so that anybody who can read can build a box and kick some ass. But not everybody understands the theory (like myself) When I did the calcs I forgot to devide by 4 and was like, "Holy shit, a 66ft port". So i started looking for limosines. My question is why a quarter box? Would there be any gain in creating a third, half, or full wave box? And if not, then why not an 8th or a 16th wave box? LOL my box was going to be 5' x 5' x 10' tuned to my Fs of 17hz. Still going to do it, but I might not have to buy that 6 door Deville *Adds... After racking my brain on how to stuff 66ft worth of port in my vehicle Well Hell, divide by 4 and I can shove 16ft up my Ass and still have room. Link to comment Share on other sites More sharing options...
Nigel Wallace Posted April 11, 2012 Report Share Posted April 11, 2012 Wait I think I get it. Is it when the peak of the wave gets to your proximity? If thats the case a Full Wave box would rock harder. Link to comment Share on other sites More sharing options...
STEvil Posted April 11, 2012 Report Share Posted April 11, 2012 All depends on your available airspace. 1/4 wave works good in tight locations, decently in rooms. 1/2 wave is for larger rooms or outdoors. Full wave.. well you might as well be building snowhorns at that point. Wish I had the clarions btw MickyMcD - "Capable of making some serious trouser flapping volumes at where's-my-testicles frequencies, the Servo-Drives used to be fairly jaw dropping..." Any time you have have a power wire next to your frame put some rubber hosing (or cut up an innertube) around it. The wire is bound to wiggle (due to driving or flex) and the casing will eventually wear through. Hammerdown... 1% no links to outside websites, business related FB/YT pages allowed. Link to comment Share on other sites More sharing options...
Rich65 Posted April 13, 2012 Report Share Posted April 13, 2012 How do you calculate the compression chamber part of the box? Say i wanted to use 2 10" subs, how would i know the dimensions for the first part of the box before the port? Link to comment Share on other sites More sharing options...
robnie Posted April 18, 2012 Report Share Posted April 18, 2012 here are a few pics off my new tappered t-line with 3 times kicker S10L7 going to play on a rockford fosgate T30001bd on 1,3ohm Uploaded with ImageShack.us Uploaded with ImageShack.us Uploaded with ImageShack.us i have already tried this before like this whit 4 times 8 inch subwoofers and that worked great i hope this build will be worth te efford Link to comment Share on other sites More sharing options...
STEvil Posted April 19, 2012 Report Share Posted April 19, 2012 make a video of "bass I love you" playing on it. MickyMcD - "Capable of making some serious trouser flapping volumes at where's-my-testicles frequencies, the Servo-Drives used to be fairly jaw dropping..." Any time you have have a power wire next to your frame put some rubber hosing (or cut up an innertube) around it. The wire is bound to wiggle (due to driving or flex) and the casing will eventually wear through. Hammerdown... 1% no links to outside websites, business related FB/YT pages allowed. Link to comment Share on other sites More sharing options...
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