Type R 15 Box

[Diddy]

I have a chrysler 300, and looking for plans for a 3.25 cu ft box at 31hz. I have 30" W x 17.5 H x 20 D to to work with. I have win ISD however im now sure how to get the cut list and box and port dimensions from it. Any help would be great thanks.

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[Jeffdachef 5,000+ posts]

kinda hard to get 31hz tuning along with adequate port area with those dimensions. I got 32hz at 3.26 cubic feet if you want to use that design.

 

[Snapper_Slapper 10+ year member]

Get Torres calc. Torres Box Tuning Calculator free download, download Torres Box Tuning Calculator latest version - Softpile.com

Just a quick calc. Sub up port up.

 

[Diddy]

32 hertz would be fine as well. 31 is almost flat, 32 is close enough and will be more output anyways. Thanks

 

[Snapper_Slapper 10+ year member]

32 hertz would be fine as well. 31 is almost flat, 32 is close enough and will be more output anyways. Thanks

What size sub/subs and top or front sub/port?

*nevermind the size q* just read thread title.

 

[Jeffdachef 5,000+ posts]

Torres is fine, but you will still need to figure out your port piece cutsheets.

For standard sub and port firing the same direction L ports that uses up the height completely, I normally subtract 2.25 from the depth which is total thickness of front baffle, rear wall and port piece 2. Then you subtract the width of the port and that will be your first port piece. For your scenario lets say you have a port width of 3 inches that needs to be 36inches long.

Take 20(depth) - 2.25 = 17.75 - 3 = 14.75 inches which is your first port piece cutout length .

To figure out how much port length this actually equals to, you add thickness of front and rear wall which is 1.5 and add half of port width. So to continue off, 14.75 + 1.5 + [3(port width) divided by 2= 1.5] = 17.75 inches of port length down the center line.

subtract that number from your target port length and subtract port width to get the length of the 2nd port piece

36 - 17.75 - 3 = 15.25 inches which is your 2nd port piece cutout length.

port piece 1 is sandwiched between front baffle and 2nd port piece. Make sure you add an additional .75 if you double baffle it.

 

[Snapper_Slapper 10+ year member]

Torres is fine, but you will still need to figure out your port piece cutsheets.
For standard sub and port firing the same direction L ports, I normally subtract 2.25 from the depth which is total thickness of front baffle, rear wall and port piece 2. Then you subtract the width of the port and that will be your first port piece. For your scenario lets say you have a port width of 3 inches that needs to be 36inches long.

Take 20(depth) - 2.25 = 17.75 - 3 = 14.75 inches which is your first port piece cutout length .

To figure out how much port length this actually equals to, you add thickness of front and rear wall which is 1.5 and add half of port width. So to continue off, 14.75 + 1.5 + [3(port width) divided by 2= 1.5] = 17.75 inches of port length down the center line.

subtract that number from your target port length and subtract port width to get the length of the 2nd port piece

36 - 17.75 - 3 = 15.25 inches which is your 2nd port piece cutout length.

port piece 1 is sandwiched between front baffle and 2nd port piece. Make sure you add an additional .75 if you double baffle it.

WTF is that? LMFAO!!! You're an idiot!

 

[Jeffdachef 5,000+ posts]

WTF is that? LMFAO!!! You're an idiot!

its for basic L ports that use up the height completely like this design, Other designs will have other calculations. If you gave him a design then at least help him out with the port cutout sheets.

Note this is just an example, not what is designed for him. This is smaller in cubic feet and lower tuning.

 

[Snapper_Slapper 10+ year member]

its for basic L ports that use up the height completely like this design, Other designs will have other calculations. If you gave him a design then at least help him out with the port cutout sheets.[/img]

Sub+port orientation would be key information in determining cut lists wouldn't it? I don't know those. Personally I think op should figure it out on his own. I merely provided the tools to do it as well as an example of what can be accomplished with those tools.

 

[Jeffdachef 5,000+ posts]

Sub+port orientation would be key information in determining cut lists wouldn't it? I don't know those. Personally I think op should figure it out on his own. I merely provided the tools to do it as well as an example of what can be accomplished with those tools.

Plugging in numbers is easy but to a box newbie, figuring out the port cutouts is not something they will do right the first time. I just gave him a simple concept of a basic standard L shape ported box both firing in the same direction and he can build on that thought process and keep thickness and other measurements in mind when he tries out different designs.

 

[Snapper_Slapper 10+ year member]

Plugging in numbers is easy but to a box newbie, figuring out the port cutouts is not something they will do right the first time. I just gave him a simple concept of a basic standard L shape ported box both firing in the same direction and he can build on that thought process and keep thickness and other measurements in mind when he tries out different designs.

Stahp explaining. I don't care anymore..... again.

 

[Jeffdachef 5,000+ posts]

says the guy that leaves the newb to dry on the most important part lmfao. You are a joke.

 

[Snapper_Slapper 10+ year member]

says the guy that leaves the newb to dry on the most important part lmfao. You are a joke.

I'm a joke? Really you're a full on retard! YOU said it would be hard to achieve port area giving the box parameters. YOU were wrong about that. It took me 45 seconds. You suggested a box "close to" what he wanted. I gave him exactly what he wanted. I was waiting for more information when YOU came in with incoherent nonsense on how to deduce a port cut list trying to regain some composure after being slapped around by me. I called you on it because it was flat out retarded. Once again, you have proven you don't know what the **** you're talking about. However, this thread is not the place for you and I to tango. But I will be watching, laughing, waiting to slap you around some more stupid. clip city clip clip city Hahahahahahahahha!

 

[Jeffdachef 5,000+ posts]

yeah how the hell is he going to figure out the port cutouts for your design leave him to dry even more and avoid answering questions.

BTW I'm soo happy I'm the target for your hard on. I wonder how many times you've responding to all my posts. Your PC area must be covered in that stuff.

 

[dagormz]

I'm a joke? Really you're a full on retard! YOU said it would be hard to achieve port area giving the box parameters. YOU were wrong about that. It took me 45 seconds. You suggested a box "close to" what he wanted. I gave him exactly what he wanted. I was waiting for more information when YOU came in with incoherent nonsense on how to deduce a port cut list trying to regain some composure after being slapped around by me. I called you on it because it was flat out retarded. Once again, you have proven you don't know what the **** you're talking about. However, this thread is not the place for you and I to tango. But I will be watching, laughing, waiting to slap you around some more stupid. clip city clip clip city Hahahahahahahahha!

Good job, now this kid is never going to come back to this site because you're a douche. You're the reason this forum is dead.