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Subwoofer Box 18"

Ø420.6mm 50.00" 21.83" 20.57" 21.83" 20.57" 22.00" 20.74" Top Top Bottom Bottom Rear Front Left Right Rear Front Left Right subbox.pro
Parameter Value
Box External Dimensions
Width × Height × Depth
50.00" × 22.00" × 21.83"
Material Thickness 0.63"
Net Internal Volume 11.79 ft3
Tuning Frequency 16 Hz
Port Area 23.25 inch2
Port Inlet
Width × Height
1.12" × 20.74"
Port Length 14.86"
Detail Size Quantity
Top / Bottom 50.00" × 21.83" 2
Front / Rear 50.00" × 20.74" 2
Left 20.57" × 20.74" 1
Right 18.82" × 20.74" 1
Port 14.86" × 20.74" 1

Bandpass and Quarter Wave is currently under development

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

Many options is currently under development

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