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View Full Version : Cant decide on port area



btnhfan
03-03-2005, 11:54 AM
What size port area should I use for a 15" MT? It will be 15" high, but I havent decided on the width. I was thinking mid to low 100's.

DBfan187
03-03-2005, 01:26 PM
For SPL, right? I'd shoot for the same amount of cone area you have.

Nikuk
03-03-2005, 01:30 PM
how much wattage are you planning on? for burps that is...

80INCHES
03-03-2005, 01:36 PM
at least 135 square inches

so if u got 15 high make your with 9inches

80

btnhfan
03-03-2005, 03:30 PM
Using 1 15". Okay Ill try to get it above 135

tRiGgEr
03-03-2005, 03:34 PM
Anywhere from 100-175 should work fine with that MT. What size box and power are you using. Also what will it be tuned to?

btnhfan
03-03-2005, 03:58 PM
For my first box, it will be tuned to 45 hz, hopefully getting at least 5 cubes. Well see if my civic wants to cooperate. It will be getting about 2000w daily, and 4000 for burps.

tRiGgEr
03-03-2005, 04:06 PM
Whew thats gonna be loud. Ide say at least 150 then:)

btnhfan
03-03-2005, 04:26 PM
Hmmm
Is it more important to have lots of box space, or a large port area?
The max dimensions for my first box are 36x24x16.5. Those are outer.

tRiGgEr
03-03-2005, 04:32 PM
Larger box. Of course you want it to breath but a small box with a lot of port area will not be as loud as a larger box with a little less port.

btnhfan
03-03-2005, 04:43 PM
Like I mean would it be better with 4.8 cubes with smaller port, or 4 cubes with huge port.

tRiGgEr
03-03-2005, 05:03 PM
I'de do the 4.8 with a smaller port as long as you don't go below 100in^2 it will be loud.

btnhfan
03-03-2005, 06:06 PM
Ill draw up some plans and get back. See which you think is better.

btnhfan
03-03-2005, 11:12 PM
Welll the closest I can get is to 105 for the area, with 1.6 port displacement
My gross box space is 6 cubes. Im afraid I might have 4 cubes, or less net after everything is said and done.

btnhfan
03-03-2005, 11:13 PM
Orrrrrrr

I could make a plug for daily.....
and then tune really high with big port area for burps....

But I dont know how to make a plug :(

btnhfan
03-03-2005, 11:24 PM
Okay I have it
6.2 (about) cubes gross
36x16.5x24

port- 15x7 29.5 inches long
tuned to 45hz

InhumanAcura
03-04-2005, 03:59 PM
4 4" aeroports

aphinney
03-04-2005, 07:44 PM
crx style

btnhfan
03-05-2005, 10:17 AM
No I know which box gets the loudest, and where to put it. Are my calculations right?