Design Question for 2 FI SSD 12" in 5 cubic feet @ 33Hz

[Nate Fisher 0]

Ok I have a few questions about the closure that I am designing. First is this a slot port design? Second do i need to throw some bracing in the inclosure or is it good as is? Third Have used various calculators to calculate port size for tuning is this correct? The box I have designed is 20"L x 48"W x 15"H  puting the box at 5.3 without bracing. The subs will be facing the rear door and the port will be facing up on the back wall. Port will be 4"H x 20"W x 22.21"L. The port Vol is 1776.8 the port area is 80" square. Any and all help with this will be great

 

 

 

 

 

 

Vehicle : 1999 Chevy Tahoe
Location in the vehicle: Rear
Space available (Length x Width x Height):  (x)L x 48W x 15.5
Subwoofer make and model: 2 FI Audio 12" SSD
Subwoofer Size: 12"
Number of Subwoofers: 2
Type of Port (Kerfed, Slot, Aero, etc.): Slot ?
What type of music do you like?: Rap, Tecno, Electronic
Is your goal SPL or Everyday Music?:  Everyday
Tuning Freq (Hz): 33Hz
Volume : 5 Cubic Feet

 

 

[Nate Fisher 0]

Forgot to add I will most likly be running a SAZ-2500D from Sundown

[EPerez 236]

I would do sub up and port back.

Edited July 23, 2013 by Bassink

[Julian 641]

agreed on sub up port back, that'll be the loudest in your particular truck.

[Nate Fisher 0]

This is a quick design i through together I will 45* all the vertical corners with a 2" piece. Is this still tuned to 33Hz? having trouble with the center port.

 

 

 

 

Edited July 23, 2013 by fishtank

[Fi 4 life 0]

No it's not the same tuning. It will change with more and more bracing, filling, wire, etc..