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View Full Version : One port for 2 subs?



c_hayhurst
04-06-2007, 11:57 AM
Can I only have one port for an enclosure that has 2 subs, or do I need to have 2 ports?

revrider1
04-06-2007, 11:58 AM
One is fine

blackbonnie
04-06-2007, 11:58 AM
you can have one port

joetama
04-06-2007, 12:00 PM
No man you need 2 ports for each sub!!! So you need 4!!! ;)


Really one is fine and in some cases optimal...

baseballer1100
04-06-2007, 12:13 PM
Do 12.

billabongcr
04-06-2007, 12:14 PM
ports dont effect sound

baseballer1100
04-06-2007, 12:18 PM
:word:

bikinpunk
04-06-2007, 12:19 PM
As long as you're taking into consideration the port noise, then one is fine. Just don't have a small port for a lot of output. That's the only thing I would watch out for.

joetama
04-06-2007, 12:32 PM
As long as you're taking into consideration the port noise, then one is fine. Just don't have a small port for a lot of output. That's the only thing I would watch out for.

That would be more of a problem if he was going with two ports. Because they would be smaller than one large port...

c_hayhurst
04-06-2007, 04:21 PM
Sweet!

I'm going to do 2 subs in a net 3 foot cubic ported box, tuned to 35 Hz, pushing 900 W RMS per sub.

Any other considerations?

joetama
04-06-2007, 04:45 PM
What size subs?

1.5 Cuft per sub seems pretty small...

c_hayhurst
04-06-2007, 05:12 PM
What size subs?

1.5 Cuft per sub seems pretty small...

The subs are 12" TC-9's

I'm putting the box in a Sentra, so space is limited, what with the box, 3 amps and wiring.

Per TCSounds' website as well as REAudio's (compared TC-9 cpecs to RE's SX and SE enclosure recommendations just for the sake of comparison) they should be okay in a 1.5 cubic foot/sub enclosure. It's not optimal; 2 cubic feet is optimal. But, they both said 1.5 cubic feet per sub is okay. They said to tune the box to 32-35 Hz, btw.

Please correct me if I'm wrong in my assumption a 3 cubic foot box is okay.

joetama
04-06-2007, 05:22 PM
It is OK but not optimal... As they said...

stishdr
04-06-2007, 05:40 PM
I would really try and get another cubic foot, but it's up to you man, let us know how it sounds when ur finished :)

JimJ
04-06-2007, 05:41 PM
My e12a.22 has a recommendation of 1.5cF ported per sub :fyi:

And it's a TC-9 derived motor :fyi:

FWIW.