PDA

View Full Version : Box Design



Untouchable11
12-29-2005, 02:51 AM
Hey guys, I found my copy of BBP6, and I noticed a few flaws in the design that I had planned. I realize that my trunk is not wide enough for two 15" subs, and a six in port, so I had another idea...

I was thinking of putting the subs at top, and the port at the bottom of the front baffle, like this.. my paint skills ****

http://img400.imageshack.us/img400/2027/front5fa.png

The only problem is, BBP6, keeps giving me an outrageous port length, somewhere of 43+ inches.

I was wondering if someone could design me a box like this?

http://img400.imageshack.us/img400/3686/side9ud.png

If I had a 33.5" Wide port, by 2.75 inches tall, my calculations say that I should have a port length of about 26.79"?

Could you design a box like that, or is it possible?

My max dimensions are:
Height 18"
Width 35"
Depth 30"

I was thinking of a port face of 33.5" wide, and 2.75" inches tall, and a tuning of 28 Hz.

Thanks,

Ry

saywhat?
12-29-2005, 03:37 AM
u need more height than that. 10:1 ratio rule.

Untouchable11
12-29-2005, 06:59 PM
u need more height than that. 10:1 ratio rule.

What?

80INCHES
12-29-2005, 07:05 PM
4 every 8inches u need a 1inch opening
ie: 8wide 1 high
16wide 2 high
24wide 3 high
and so on

80

squeak9798
12-29-2005, 09:40 PM
u need more height than that. 10:1 ratio rule.

It's actually 9:1, not 10:1

PowerNaudio
12-29-2005, 09:51 PM
so what happens when the golden rule is not followed? how will it affect sound?

Ben_Davis
12-31-2005, 03:56 AM
where did u guys learn all of these formulas?

jalverson
12-31-2005, 09:58 AM
they are experianced, and the internet has evrything you need to know :)