Help with a Type R

[Lakota 5,000+ posts]

Yea, my biggest problem was i couldnt find external dimesnions, i found everything else out.

It's not hard to figure out. Moe Lester's plans consider the wood to be 3/4" thick. I'm assuming you've had geometry, go from there. Take a minute to actually look over the plans, you'll figure everything out, I did.

 

[HighOnFire 10+ year member]

I failed geometry, im not joking. I'll take a look but I dont know what to do.

 

[HighOnFire 10+ year member]

How do I tune it...lol. I seriously am a noob. What are the equations i need to know to find the external dimsensions.

 

[HighOnFire 10+ year member]

Im just going to buy a prefab box. this is seriously really hard and i **** at math, really really bad.

 

[dleccord 5,000+ posts]

this is seriously not hard, just put your time into it like i did at first, you'd be glad you did at the end, regardless how sh|tty your math is, dont worry about learning how to tune at the momment and just build one of Moe's easy-to-read plans

 

[Mr. Opportunist 10+ year member]

2.5 30hz

 

[HighOnFire 10+ year member]

who is Moe.. and where do I get his plans. I just need to find out how to find the external dimensions with the info I had.

 

[HighOnFire 10+ year member]

OK... I think I figured this all out. I didnt know you could choose 2 of the dimensions and the third was decided by the tuning and such. I figured it out easy with this website

http://www.subwoofertools.com/forum/ported-box.asp?Ew=15&Eh=15&Dia=6&Xmax=18.2&Vd=.071&NumW=1&Vb=2.5&Fb=34&Qts=.47&Vas=1.6&Fs=29&CE=0

Is there any special thing I need to put in the vent, like a plastic thing, or do I just make it and thats it.

 

[HighOnFire 10+ year member]

Is 15w x 15h x 32.25 deep good or no?

 

[HighOnFire 10+ year member]

Also, whats a better tuning for metal and rock. It seems that a lower tuning handles metal better. Am I correct?