Where to purchase sub ports?

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06-22-2004, 05:47 PM

#11

Seahag

1000 Watt CAFz'r

Join Date: Aug 2002

Posts: 1,239

1 6" for 2 12`s maybe

06-22-2004, 11:33 PM

#12

Eli47

500 Watt CAFz'r

Join Date: Dec 2000

Posts: 952

I'll look at work tomorow Kwalsh24, will let you know what I find.
I can help more if you provide me with the model speaker/s and /or Thiel/Small parameters of the speakers you plan to use.

06-23-2004, 08:00 AM

#13

Kwalsh24

50 Watt CAFz'r

Thread Starter

Join Date: Dec 2003

Posts: 375

Yea sorry, my subs are
2 Image Dynamics IDQ12 D4 V.2

My box is kinda in the middle of the large and normal so here are both
Large | Normal
1.5cuft | 1.25cuft - Ported Volumes
28Hz | 30Hz - Ported Frequency
3"IDx13.75" | 3"IDx14.375" - Port Dimensions
16Hz/28Hz | 18Hz/32Hz - 3dB In car \ Free space

Now I.D says to use 3" but others say 4" so eitherone would do!

[ June 23, 2004, 09:03 AM: Message edited by: Kwalsh24 ]

06-23-2004, 06:14 PM

#14

Eli47

500 Watt CAFz'r

Join Date: Dec 2000

Posts: 952

i GOT 2 FULL SETS OF EACH 3 AND 4 INCH PORTS, i'LL GIVE THE INFO TO OUR TECH, AND i'LL GET BACK TO YOU WITH RECOMENDATIONS
SORRY ABOUT THE CAPS LOCK

06-23-2004, 06:28 PM

#15

Kwalsh24

50 Watt CAFz'r

Thread Starter

Join Date: Dec 2003

Posts: 375

lol np, ok thanks, Still trying to figure out how I can fit ports into a box that can only be 15.5" high, might haveta go sloted

06-24-2004, 10:13 AM

#16

Eli47

500 Watt CAFz'r

Join Date: Dec 2000

Posts: 952

I'LL PASS THE INFO TO OUR TECH, HOWEVER i'D SUGGEST TUNING THE PORT AT A HIGHER FREQUENCY, SOMETHING LIKE AT LEAST 40hZ.

06-24-2004, 05:10 PM

#17

Eli47

500 Watt CAFz'r

Join Date: Dec 2000

Posts: 952

OK, HERE GOES..,
OUR TECH SUGGESTS A SINGLE BOX FOR BOTH WOOFERS, THAT WOULD HAVE A TOTAL OF 1.691 CU/FT WITH A SINGLE 4 INCH PORT THAT HAS A LENGTH OF 11.13 INCHES (OR 11 INCHES) AND WITH TOTAL LOAD OF 4 OHMS. ADD A MEDIUM AMOUNT OF STUFFING TO THE CABINET WALLS, ESPECIALLY NEAR THE PORT IF TOO CLOSE TO CABINET WALL.
THIS WOULD GIVE A PORTED FREQUENCY OF 40HZ, F3 POINT IS 47HZ (-3dB) .

[ June 24, 2004, 06:12 PM: Message edited by: Eli47 ]

06-24-2004, 06:04 PM

#18

Kwalsh24

50 Watt CAFz'r

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Join Date: Dec 2003

Posts: 375

So by sigle box you mean a devider doen the middle?

06-24-2004, 06:53 PM

#19

Ettore Casagrande Jr.

Guest

Posts: n/a

According to my pathetic knowledge of porting, I found that two 2" ports move air at less than 10% of the speed of sound and only need to be 5.6" long to port his existsing 3.16cu·ft box to 27.5Hz.

Not sure if I am making a mistake here or something, but a 6" port seems a MIGHT excessive.