Box Calc

Free

Free

Everything you need to size and cut a sealed or ported box.

• Sealed box calculator
  Gross & net volume
• Ported box calculator
  Slot & round port length, area, tuning
• Panel cut list
  Panel sizes and port pieces
• Sheet cut planner
  4x8 ft or 1220x2440 mm with kerf

Open the free calculator

Premium

$14.99 one-time

Advanced designs, blueprints and tuning tools.

• Assembly blueprint
  Step-by-step exploded views, front/side/top drawings with dimensions
• 4th order bandpass
  Sealed + ported chamber design
• 6th order bandpass
  Series-tuned dual ported chambers
• Kerfed (curved) boxes
  Curved front or back: arc length, kerf count, spacing and depth
• Transmission line (TL)
  Quarter-wave line length, folds, layout and fold baffles
• Sub specs (T/S)
  Enter or save your sub's T/S parameters and get sealed, ported, bandpass and TL box recommendations
• Sub wiring (ohms)
  Series, parallel and series-parallel options for 1–4 SVC/DVC subs with diagrams and the best match for your amp
• Cabin quarter-wave
  Sub-to-windshield distance → quarter-, half- and full-wave frequencies, with a tone to play
• 3D view: transparent & take apart
  See the port, dividers and folds inside, and take the box apart panel by panel (rotate and zoom are free)
• Seal & glue specs
  Seam lengths by panel, gasket lengths, glue and caulk amounts
• Tone generator
  Test tones with 30 s timer and loop, for tuning checks
• Order this box built by Amp Forge (coming soon)
  Send your design for CNC cutting and laser engraving
• Pre-made box plans
  10", 12" and 15" sealed & ported, ready to cut

Buy Premium · $14.99

CNC Expert

$49.99 one-time

Export your box straight to your CNC machine.

Includes everything in Premium, plus:

• CNC Pro: export for CNC (DXF + SVG)
  Nested cut sheets at real scale for Aspire, VCarve, Fusion or Easel: outlines, true-circle sub holes, labels on their own layer

Buy CNC Expert · $49.99