ChatraN Posted October 25, 2012 Report Share Posted October 25, 2012 Nobody wants to help me? I can't understand how to calculate exactly the length and how to place the 4 subs in single box. If i have 4 12" subs the port area has to be the sd of 1 sub multiplied by 4? yep, and 2mts and 50cm total lenght for 34hz tune Link to comment Share on other sites More sharing options...
Wizzy Posted October 25, 2012 Report Share Posted October 25, 2012 Nobody wants to help me? I can't understand how to calculate exactly the length and how to place the 4 subs in single box. If i have 4 12" subs the port area has to be the sd of 1 sub multiplied by 4? yep, and 2mts and 50cm total lenght for 34hz tune i don't understand... what is 2mts? and 50 cm total length??? Can you show me in a draw? and how to place the subs? i am not from US so its hard for me to understand... Link to comment Share on other sites More sharing options...
ChatraN Posted October 25, 2012 Report Share Posted October 25, 2012 Nobody wants to help me? I can't understand how to calculate exactly the length and how to place the 4 subs in single box. If i have 4 12" subs the port area has to be the sd of 1 sub multiplied by 4? yep, and 2mts and 50cm total lenght for 34hz tune i don't understand... what is 2mts? and 50 cm total length??? Can you show me in a draw? and how to place the subs? i am not from US so its hard for me to understand... speed of sound 340mts/sec divide by the chosen frec, this time is 34hz = 10mts long (full lenght of a 34hz wave) then u have to divide by 4 to get 1/4 of the wave lenght 10mts/4 = 2,5 mts and this is the full lenght of your t-line box tuned at 34hz, it varies on each frec. the lowest Hz, the largest box 20Hz = 4,25mts 25Hz = 3,4mts 30Hz = 2,83mts 35Hz = 2,43mts 40Hz = 2.12mts 45Hz = 1,88mts 50Hz = 1,7mts and so.. ps: where you from? o.o Link to comment Share on other sites More sharing options...
Wizzy Posted October 25, 2012 Report Share Posted October 25, 2012 ok. i understand that the measurement begins from the center of the driver. i want to install 4 subs. i begin with the measurement between the drivers? Link to comment Share on other sites More sharing options...
STEvil Posted October 26, 2012 Report Share Posted October 26, 2012 depends on your layout of the drivers. chatran - m/s 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...
ChatraN Posted October 28, 2012 Report Share Posted October 28, 2012 so today i finished my 12" t-line box! yay http://imgur.com/a/TVTPs#0 full album. Link to comment Share on other sites More sharing options...
STEvil Posted October 28, 2012 Report Share Posted October 28, 2012 what amps are those? 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...
ChatraN Posted October 28, 2012 Report Share Posted October 28, 2012 Rockford Punch P200-2 Link to comment Share on other sites More sharing options...
Wizzy Posted October 28, 2012 Report Share Posted October 28, 2012 Ok post a vid so we can see haw it sounds and flexes:D Link to comment Share on other sites More sharing options...
DamienNicholas Posted October 28, 2012 Report Share Posted October 28, 2012 Would the box need to be to the reccomended ported size? like 2 15's need about 10 cubes so you would just start with the 10cube box and figure in the port frequency/ total cone area of the 2 woofers? Link to comment Share on other sites More sharing options...
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