Port length Calculator for sub woofer box design. This calculator will determine what length port to use in your ported enclosure. Enter Enclosure Volume (ft3 ) Tuning Frequency Hertz Round Port Port Diameter Inches Square Vent Enter Height Inches Enter Width Inches Vent Length Inches. If you made the enclosure as small as the sealed enclosure but ported it to gain the low frequency response, the output would deviate from the desired flat response. These boxes are the easiest to calculate the internal volume. Vented Box Calculator determines the internal dimensions for a sealed speaker enclosure. The optimum volume is also known as the Golden Ratio.

Subwoofer enclosure comparison calculator. Compare sealed, ported, bandpass, closed and vented boxes. Solve for box volume, frequency curve and port or vent length given Thiele Small specification. A vented enclosure is not much more complex than a sealed box. Generally requires 50 to 100 more total enclosure volume than vented or sealed types. Butterworth Fourth-Order Vented Speaker Enclosure Design Formulas & Calculator. Explanation of Terms Qts, Vas, and Fs, are some of the electro-mechanical parameters for your woofer.

Port Width Port Height Box Volume (Vb) Tuning Frequency (Fb) Port Length inches inches cubic feet hertz inches Volume Calculator – Rectangular/Square Enclosures Measure the outside dimensions of your enclosure and the material thickness, then enter the numbers below to calculate interior volume. Box Tune Calculator allows you to create speaker enclosures on the go. The app includes: – Vented box Calculator – Cut Sheet – Wedge box Calculator – Box Volume Calculator – Port Size Calculator – Wiring diagrams – Ohm Calculators: -Advanced ohm calculator allows you to enter the total Ohm load per speaker(not per voice coil) and number of speakers to get the total Ohm load at amplifier. Select an enclosure type, choose a unit of measure and wood thickness, then input your dimensions. The Woofer BoxWizard will calculate how much internal air space is available for your woofer(s). Note 2: Subtract any volume displaced by woofers, dividers, braces & vents.

### Subwoofer Box Enclosure Design Calculator

The Subwoofer Box Calculator or Enclosure Volume Calculator is used to determine the cubic feet or liters of a speaker or subwoofer box or cylinder tube enclosure. Next enter any bracing and port displacement volume if ported. Use this JavaScript Audio Stereo Speaker Cabinet Design Calculator to build speaker cabinets. Vented BUTTERWORTH B4 Vas Litres Box Volume Litres Fs Hertz Tuning frequency Hertz Qts F3 Hertz Piston Diameter cm Vent Diameter cm Vent Length cm BESSEL BE4 Vas Litres Box Volume Litres Fs Hertz Tuning frequency Hertz Qts F3 Hertz Piston Diameter cm Vent Diameter cm Vent Length cm BUTTERWORTH INTER-ORDER IB4 Vas Litres Box Volume Litres Fs Hertz Tuning frequency Hertz Qts F3 Hertz Piston Diameter cm Vent Diameter cm Vent Length cm HOME PAGE Case Studies Published Articles Control Tips/Tricks Training/Mediation. A ported enclosure will generally have a better low frequency extension for a given response shape (alignment) but would require a larger enclosure. Calculating Speaker Enclosure Volume. To make a good vented box, you should start with a closed box that has a Q(tc) no higher than 0. Hz steps until you see the range of responses possible for this box volume. Open the Vent Calculator and you’ll notice that WinSpeakerz has recommended using 2 two-inch diameter tubes. 16 square inches of port area per cubic foot of box volume, make the port 18-20 inches deep. The proper combination of a vented enclosure coupled to a driver that is suited for this application can give a substantial increase in output for a given input power and yield outstanding SQ. To make the math easier on a calculator, we convert the fractions of an inch to a decimal equivalent, the true superiority of the Imperial system starts to show, dividing 3 by 4 to get 0.