Subwoofer Box for 12"

Ø285mm 24.41" 21.82" 15.82" 14.41" 15.82" 14.41" 13.78" 12.36" Top Top Bottom Bottom Rear Front Left Right Rear Front Left Right
Parameter Value
Box External Dimensions
Width × Height × Depth
24.41" × 13.78" × 15.82"
Material Thickness 0.71"
Net Internal Volume 2.01 ft3
Tuning Frequency 36 Hz
Port Area 23.25 inch2
Port Inlet
Width × Height
1.88" × 12.36"
Port Length 18.12"
Detail Size Quantity
Top / Bottom 24.41" × 15.82" 2
Front 21.82" × 12.36" 1
Rear 24.41" × 12.36" 1
Left 14.41" × 12.36" 1
Right 15.11" × 12.36" 1
Port 12.52" × 12.36" 1
Port 2.30" × 12.36" 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

Share your own box
Donate to the project

Please send donation using PayPal

Every donation is appreciated!

SubBox is free, community-supported software, and that wouldn't be possible without your continued support.

Please donate what you think is a fair contribution to the SubBox project and our attempts to keep the community alive.

Thank you,
The SubBox Team