Materials Needed to Build a Custom Subwoofer Enclosure
Building a custom subwoofer encloser is a great solution that can save you money and allow you to be sure the enclosure is the right size for an odd sized sub. On top of the typical screws and tools, there will be a few things to consider before you purchase the plans to build an enclosure.
Carbon Fiber Material
Many people will use plain MDF board for their enclosures, and this will work just fine. However, if you want to maximize the sound, consider using a carbon fiber subwoofer enclosure. The carbon fiber is similar to fiberglass, but is more durable and easier to work with. It's also lightweight, making it easier to cut and work with.
In order to secure your custom sub box, you're going to need to get the proper mounting materials. What you need will be based largely on the size of the box and the placement. In most cases you will want a mounting ring, terminal cups and port tubes. This will allow you to secure the box and the cables where they need to be.
Many people overlook this, but it actually does more than just add a nice look to the custom enclosure. The carpeting can take away some of the buzz that is associated with deep bass tones. Since the carpet acts as a natural sound absorber, this should be used sparingly. You can find small carpet remnants and just place it along the outside of the enclosure when you've finished building it.