Fb
Net Vol
Mount
Enclosure (inches)
Width24.0"
Height16.0"
Depth18.0"
Wood Thickness0.75"
Volume
Net Volume
ft³
Gross Vol
ft³
Tuning Frequency (Fb)
Hz
Port Air Velocity
Port A
Port B
Enclosure Type
Port Type
Configuration
Aero Port A
Opening Width2.0"
Height
Length14.0"
Aero Port B
Diameter4.0"
Length12.0"
Position on face
H offsetcenter
V offsetcenter
Stats
Area A
in²
Area B
in²
Displ A
in³
Displ B
in³
Tuning Quality
20Hz35Hz55Hz+
Mounting Face
Number of Subs
Subwoofer Library
Driver Specs
Cone Diameter12"
Displacement (each)0.10 ft³
Xmax12 mm
RMS Power (total)500 W
Mounting Depth6.50"
Baffle face to the back of the magnet
T/S Parameters (optional — improves freq response)
Fs (Hz)
Qts
Vas (L)
Pe (W)
Quick Numbers
Rough estimates from cone size and power — no T/S needed.
Cone Area (ea)
cm²
Sd — surface area of one cone
Max SPL (Xmax)
dB
Loudest at tuning before the cone runs out of travel
Total Displacement
ft³
Space the drivers take up inside the box
Sub Count
1
Drivers in this design
Port Vel @ Tuning
m/s
Ballpark air speed at Fb. Under ~17 m/s avoids port noise — see the Port Vel graph below for the real curve
Baffle
Response Analysis
Full simulation of this box + driver at your RMS power. Needs Fs, Qts and Vas.
How loud the box plays at each frequency · hover to read values
F3 — Low-End Limit
Hz
Output drops 3 dB below peak here. Lower = deeper bass
Peak SPL
dB
Loudest point of the curve at your RMS power
Max Cone Travel
mm
Furthest the cone moves anywhere from 10–200 Hz, and how much of Xmax that uses. Over 100% = risk of damage
Cut List
All dimensions in inches · Wood thickness:
Sub Cutout
Cutout Dia.
in
Baffle Layers
Sub Count
Qty Cutouts
Slot Port Walls
Board Feet
Total Area
ft²
4×8 Sheets
Left-drag: orbit  ·  Right-drag/Shift: pan  ·  Scroll: zoom
Legal Notice & Terms of Use

Ownership

© 2026 Prokzi Designs. All rights reserved.

The Prokzi Designs Enclosure Creator — including its source code, user interface, layout and visual design, calculation methods, subwoofer parameter database and the cut sheets it generates — is the exclusive property of Prokzi Designs and is protected by copyright law.

What You May Do

  • Use this tool to design enclosures, for personal or commercial work.
  • Build, sell and share the physical enclosures you design with it — the boxes you build are yours, and no royalty or attribution is owed on them.
  • Print or export cut sheets for your own builds and customers.

What You May Not Do

  • Copy, redistribute, host, mirror or share the software or its source code.
  • Resell, rent, sublicense or bundle it with a product or service.
  • Rebrand it, remove attribution, or pass it off as your own work.
  • Create derivative works, ports or modified versions.
  • Extract the subwoofer database or calculation code for use in other software.

Written permission from Prokzi Designs is required for any of the above.

No Warranty

This software is provided "as is", without warranty of any kind, express or implied, including but not limited to merchantability, fitness for a particular purpose and non-infringement.

All results — volumes, tuning frequencies, response curves, excursion and port velocity figures, and cut dimensions — are engineering estimates based on the values you enter. Real enclosures vary with materials, build accuracy, driver tolerances and vehicle acoustics. Always verify dimensions before cutting and confirm your design against the driver manufacturer's specifications.

Limitation of Liability

To the fullest extent permitted by law, Prokzi Designs shall not be liable for any damages arising from use of this software — including damaged drivers, amplifiers or vehicles, wasted materials, mis-cut panels, lost time, lost profit, or any indirect or consequential loss.

You are responsible for your own build. Use appropriate safety equipment and follow safe practice when operating power tools.

Trademarks

"Prokzi Designs" and the Prokzi Designs logo are trademarks of Prokzi Designs. Subwoofer manufacturer and model names shown in the driver library are the trademarks of their respective owners and are used for identification only. Their inclusion does not imply any affiliation with, endorsement by, or verification from those manufacturers, and published parameters may differ from the units you own.

Third-Party Components

3D rendering uses three.js — Copyright © 2010–2026 three.js authors, MIT License. Typefaces (Space Grotesk, JetBrains Mono) are served by Google Fonts under the SIL Open Font License. These components remain the property of their respective authors and are used under their licenses.

Contact

For licensing, permissions or to report unauthorized use, contact Prokzi Designs.

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