10 inch subwoofer box design, ported box plan, 3D model. Net internal volume 1.34 cubic feet, port area 16.27 square inches, tuning frequency 38 Hz. Custom subwoofer enclosure build. For instance, if you have powerful speakers that have greater volume displacement requirements, you should increase the airspace value by 20% for better sound results. So, 6”x9” speakers with a high RMS value (powerful output) will need airspace of around 0.20 cubic feet. For further volume displacement, increase the airspace volume by 20%. QPower® Heavy Duty Series 15" 2-Hole Forward-Firing Ported Subwoofer Box (QHD115V) 0. $63.67. QPower® Heavy Duty Series 15" 2-Hole Forward-Firing Ported Subwoofer Box with Square Hole (HD215 VENT SQ) 0. $115.33. QPower® QBomb Series 12" 2-Hole Upward-Firing Sealed Subwoofer Enclosure (QBDODGE12 4DR) 0. $143.03. In terms of size, a 10-inch subwoofer typically requires a box size between 0.5-1.0 cubic feet for a sealed box and 1.0-2.0 cubic feet for a ported box. A 12-inch subwoofer would require a slightly larger box size, around 1.25-1.75 cubic feet for a sealed box and 2.0-3.0 cubic feet for a ported box. The formula for the subwoofer box enclosure tuning frequency is: F B = (AC V)0.31 ⋅F S F B = ( A C V) 0.31 ⋅ F S. where: F B = Subwoofer Box Enclosure Frequency. A = Air Compliance of Subwoofer. V = Enclosure Volume or Box (CLICK HERE for QuickCalc) F S = Speaker Resonance Frequency. 5vza9KL.

subwoofer box volume requirements