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How to Design Your Own Subwoofer with Subwoofer Design Toolbox
If you are looking for a software that can help you design your own subwoofer, you might want to check out Subwoofer Design Toolbox. This is a powerful and easy-to-use program that lets you create sealed, ported, and bandpass boxes, as well as design ports, enclosures, and select woofers. You can also compare frequency responses of different box designs, calculate box volumes and dimensions, and print cutting templates for your enclosure pieces.
Subwoofer Design Toolbox is compatible with Windows XP, Vista, Windows 7, 8, 8.1, 10 and 11. It supports both metric and imperial units, and offers context-sensitive design hints and recommended values. You can download a free trial version of Subwoofer Design Toolbox from its official website[^1^], or purchase the full version for $29.95.
In this article, we will show you how to use Subwoofer Design Toolbox to design your own subwoofer step by step.
Step 1: Enter Your Driver Parameters
The first step is to enter your driver parameters in the box design tool. You can find these parameters in the specifications sheet of your woofer, or use the woofer selection tool to compare different woofers and their estimated box requirements. You need to enter the following parameters: Qts (total Q), Vas (equivalent volume), Fs (resonant frequency), Re (DC resistance), Sd (cone area), Xmax (maximum linear excursion), Pe (maximum power handling), and SPL (sensitivity).
Step 2: Choose Your Box Type and Volume
The next step is to choose your box type and volume. You can select from sealed, ported, or bandpass boxes. For each box type, you can enter your desired box volume or let the program suggest an optimal volume based on your driver parameters. You can also adjust the Qtc (total Q of the system) for sealed boxes, or the Fb (port tuning frequency) for ported and bandpass boxes. The program will show you the frequency response graph of your box design, as well as other useful information such as F3 (the frequency at which the response is 3 dB down from the maximum), group delay, impedance curve, cone excursion curve, etc.
Step 3: Design Your Port
If you choose a ported or bandpass box, you need to design your port in the port design tool. You can choose from round, rectangle, or slot ports. You need to enter the port diameter or width and height for round or rectangle ports, respectively. For slot ports, you also need to enter the slot length and thickness. The program will calculate the port length and area for you based on your box volume and port tuning frequency. You can also see the port velocity curve and check if it exceeds the recommended maximum of 5% of the speed of sound.
Step 4: Design Your Enclosure
The final step is to design your enclosure in the enclosure design tool. You can choose from rectangular or wedge-shaped boxes. You need to enter the box dimensions or let the program calculate them for you based on your box volume. You can also enter any offsets or angles for wedge-shaped boxes. The program will show you a 3D view of your enclosure and its internal volume. You can also print a cutting template for your enclosure pieces by clicking on the Show Template button.
Conclusion
Subwoofer Design Toolbox is a great software for designing your own subwoofer. It offers a lot of features and tools that make it easy and fun to create sealed, ported, or bandpass boxes, as well as design ports, enclosures, and select woofers. You can also compare frequency responses of different box designs, calculate box volumes and dimensions, and print cutting templates for your enclosure pieces. You can download a free trial version of Subwoofer Design Toolbox from its official website[^1^], or purchase the full version for $29.95. 061ffe29dd