STEvil Posted January 17, 2012 Report Share Posted January 17, 2012 5:1 what? 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...
87regal Posted January 17, 2012 Report Share Posted January 17, 2012 5:1 what? 5:1 ratio continuous taper. Link to comment Share on other sites More sharing options...
STEvil Posted January 18, 2012 Report Share Posted January 18, 2012 ratio of what? The wave length? Then you're not using 1/4 wave theory anymore and are going to have poor results with anything other than a closing taper or stepped chambers. 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...
87regal Posted January 18, 2012 Report Share Posted January 18, 2012 ratio of what? The wave length? Then you're not using 1/4 wave theory anymore and are going to have poor results with anything other than a closing taper or stepped chambers. 5:1 would be Closed end:Open end. How could you taper a wavelength? Link to comment Share on other sites More sharing options...
LBM Posted January 18, 2012 Report Share Posted January 18, 2012 Is it okay to make a T-line with 20 hz tuned and putting a sub with a FS of 30 hz ??? It means using these parameters. 1130 / 20(HZ) = 56.5 ft 56.5 / 4 = 14.125 ft long. Sd = 1210 cm2 = 187.5 sq inch port area. I am doing right ???? http://lbm.net.in Link to comment Share on other sites More sharing options...
STEvil Posted January 19, 2012 Report Share Posted January 19, 2012 LBM - Yes, you can tune to whatever frequency you want. 87 regal, You taper like a horn. Either opening slowly from beginning to end, or closing slowly from beginning to end. What ratio are you talking about if its not tapering or frequency? 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...
87regal Posted January 19, 2012 Report Share Posted January 19, 2012 LBM - Yes, you can tune to whatever frequency you want. 87 regal, You taper like a horn. Either opening slowly from beginning to end, or closing slowly from beginning to end. What ratio are you talking about if its not tapering or frequency? Tapering of the cross sectional area. I looks like most people in here are doing constant area t-lines. Usually more wood to cut, and can be a pain in the ass to fit the magnet. Link to comment Share on other sites More sharing options...
Goblenator Posted January 21, 2012 Report Share Posted January 21, 2012 This is the design for my T-Line box. 1'7 1/2" tall x 3'5" wide x 1'5" deep outside dimentions. Port, 15.5" tall x 5" wide x 8'11 1/4" long tuned to 31.6hz inside dimentions. American Bass XFL 10" D2. Link to comment Share on other sites More sharing options...
STEvil Posted January 21, 2012 Report Share Posted January 21, 2012 turn the sub mount 45 degrees to the right for added fun 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...
Goblenator Posted January 21, 2012 Report Share Posted January 21, 2012 turn the sub mount 45 degrees to the right for added fun That makes no sense Link to comment Share on other sites More sharing options...
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