View Full Version : Need help 2 15in powerbass m-15 ported sub enclosure

12-09-2012, 11:21 PM
Vehicle : 2003 Kia Rio
Location in the vehicle: Trunk
Space available (Length x Width x Height): 36x36x15
Subwoofer make and model: Powerbass m-15
Subwoofer Size: 15in
Number of Subwoofers: 2
What type of music do you like?: Rock
Is your goal SPL or Everyday Music?: everyday music
Tuning Freq (Hz): 35 Hz

Closest specs I could find to my speaker
Gross Vb Internal 5.0 cu.ft
Circular Port 5 x 4.35 D
Fb (Box Tuning) 35Hz
F3 (-3dB Cutoff) 29Hz
Pe (Watts-Rms) 150-425
Subsonic Filter Setting If Applicable 30Hz

I put these specs into www.bcae1.com/spboxnew2
I found my trunk has a gross volume of 9 cubic feet which is one foot less then the recommended build. I need help with the box design if its fine going one foot under recommended if not i need new ideas. Any help would be greatly appreciated.

12-10-2012, 11:57 AM
They'll do fine in 6 cubes ported, i preferred mine sealed in 4.5 cubes. make sure you build the box to fit or build it in the trunk

12-10-2012, 04:48 PM
Thank you for the quick response. I could really use some help in the design of the box if you have time to help.