TL design needs review

[sinosic 10+ year member]

i design this tl enclosure based on the re mx 12" fs. which is 23.165. port area of 72 sqin and line 144" (12'). will this work? going to be feeding it about 1000 watts rms.

Click to read more...

 

[Omarvelous 10+ year member]

nice looking..... where you mounting the sub?

 

[sinosic 10+ year member]

nice looking..... where you mounting the sub?

im thinking at the begining of the line.

 

[80INCHES 5,000+ posts]

hmmm looks good that style is caled folded transmission line

it looks really nice

80

 

[sinosic 10+ year member]

anyone ever build one of these

 

[iamamp3pimp 5,000+ posts]

mounting inverted?

 

[iamamp3pimp 5,000+ posts]

MX SERIES

Product Dimension12”

Mounting Depth - 10.25”

Mounting Hole Diameter - 11.5”

Overall Diameter - 13”

Bolt Hole Circle - 12.25”

Motor Width - 8.5”

Motor Depth - 2.5”

Basket Depth - 7.75”

Displacement - 0.19 cu. ft.

Weight - 33 lbs

 

[sinosic 10+ year member]

mounting inverted?

would that help? i might need to cause the sub is very deep and i dont think it should be hella close to the mdf.

 

[sinosic 10+ year member]

MX SERIESProduct Dimension12”

Mounting Depth - 10.25”

Mounting Hole Diameter - 11.5”

Overall Diameter - 13”

Bolt Hole Circle - 12.25”

Motor Width - 8.5”

Motor Depth - 2.5”

Basket Depth - 7.75”

Displacement - 0.19 cu. ft.

Weight - 33 lbs

yah. what do you think it would sound like with the sub inverted? do you think this box is designed good?

 

[iamamp3pimp 5,000+ posts]

inverted wont make a difference w the sound, and this one doesnt have a pole vent so u can mount it as close to the wood as possible.

but

you need 10 + inches of depth....You dont have it there.

you have to invert it.

 

[iamamp3pimp 5,000+ posts]

and since transmission lines work off the back wave....i dont know how well it would work. (i cant design them so im not 100% sure)

 

[Fast1one 10+ year member]

Will the line incorporate any type of stuffing? You need to add some stuffing and lowpass it at 50hz with a steep slope. Straight lines like that have a nasty peak round 70-80 hz...the stuffing and steep slope well help...

I have never actually tried mounting it inverted before, if you do, maybe try switching the phase....

 

[Rawr-DQ 10+ year member]

To figure out the needed information for a transmission line:

1: The subwoofer needs to have a Qts of .40 or lower

2: Get the subwoofer’s Fs

3: (1130/Fs)/4 will give you the length of the 1/4 wave length needed in feet. This needs to be the length of the port. Don’t worry, it will be long.

4: Next you need to figure out the port area needed, which should be the same as the subwoofer’s Sd. If you don’t have the Sd, here’s how to figure it out: Measure the subwoofer from center of surround to center of surround and divide that by 2. Then take that measurement and apply it like this: (measurement/2) x (measurement/2) x 3.14, that will give you the Sd. This is also your port area. If you are using multiple woofers, just multiply that by the number of woofers you have.

Confused yet?

5: Now you know how much port area and port length you need, and there is no chamber, it’s all one port, so now all you have to do is figure out how to get that length in the area that you have to work with.

You can thank stratusrt01 on the realm fourms, that's who I got this info from, I have not tried it yet.

 

[sinosic 10+ year member]

thats the same formual i used. think im going to try out my design but with the mx inverted.

To figure out the needed information for a transmission line:
1: The subwoofer needs to have a Qts of .40 or lower

2: Get the subwoofer’s Fs

3: (1130/Fs)/4 will give you the length of the 1/4 wave length needed in feet. This needs to be the length of the port. Don’t worry, it will be long.

4: Next you need to figure out the port area needed, which should be the same as the subwoofer’s Sd. If you don’t have the Sd, here’s how to figure it out: Measure the subwoofer from center of surround to center of surround and divide that by 2. Then take that measurement and apply it like this: (measurement/2) x (measurement/2) x 3.14, that will give you the Sd. This is also your port area. If you are using multiple woofers, just multiply that by the number of woofers you have.

Confused yet?

5: Now you know how much port area and port length you need, and there is no chamber, it’s all one port, so now all you have to do is figure out how to get that length in the area that you have to work with.

You can thank stratusrt01 on the realm fourms, that's who I got this info from, I have not tried it yet.

 

[mobeious 10+ year member]

TL enclosers are made for low power setups 1000watts = goodbye to subwoofer

and if ur going for loudness ur building the wrong box