Subwoofer Box for 12"

Ø280mm 27.56" 25.07" 12.85" 11.59" 12.85" 11.59" 13.78" 12.52" Top Top Bottom Bottom Rear Front Left Right Rear Front Left Right
Parameter Value
Box External Dimensions
Width x Height x Depth
27.56" x 13.78" x 12.85"
Material Thickness 0.63"
Net Internal Volume 1.77 ft3
Tuning Frequency 35 Hz
Port Area 23.25 inch2
Port Inlet
Width x Height
1.86" x 12.52"
Port Length 23.06"
Detail Size Quantity
Top / Bottom 27.56" x 12.85" 2
Front 25.07" x 12.52" 1
Rear 27.56" x 12.52" 1
Left 11.59" x 12.52" 1
Right 12.22" x 12.52" 1
Port 9.73" x 12.52" 1
Port 10.21" x 12.52" 1

Net internal air space available for your woofers - Vb. It does not include any volume displaced by woofers, dividers and vents

Wood thickness (MDF or plywood)

This is the hole cutout needed to "drop-in" a woofer

This is the depth of the woofer

Volume of Displacement - Vd. If you want to compensate for the volume taken up by the woofer, you can use this parameter

This is the horizontal offset of the woofer relative to center of the box. To move the speaker to the left wall, you must specify a negative value

This is the tuning frequency of the box - Fb. Universal tuning that fits most subwoofers - 36 Hz

This is the inner diameter of each tuning port

This is the length of each tuning vent

All values rounded to nearest hundredths (x.xx)

Non-editable parameters are automatically calculated

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