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

 

 

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

I would do sub up and port back.

Edited July 23, 201312 yr by Bassink

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

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, 201312 yr by fishtank

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