Budget Subwoofer Build (The Budget Bass Box)

Summary

In this DIY Audio Guy video, Justin demonstrates how to build a budget-friendly 12-inch subwoofer using an inexpensive GRS polycone driver. He shares his construction process, including tips on materials, techniques, and common mistakes to avoid. Despite the low cost, the build showcases practical woodworking skills and sound quality testing, proving that you can create a functional subwoofer without breaking the bank. Join Justin on this audio adventure as he emphasizes learning through experience and invites viewers to engage in the comments.

Takeaways

• 😀 The project focuses on building a budget-friendly 12-inch subwoofer using affordable materials.
• 💡 The GRS Polycone 4-ohm subwoofer is highlighted as a great budget option at $22.98 each, with discounts for bulk purchases.
• 🛠️ The recommended box design is a 1.5 cubic foot sealed enclosure for optimal sound performance with an F3 of 37 Hz.
• 🔧 The construction process uses basic tools, with brad nails and wood glue being the preferred method for assembly.
• ❌ The host acknowledges several mistakes made during the build, emphasizing the importance of learning from errors.
• 📏 The speaker hole is cut out using a Jasper circle jig, showcasing a more precise cutting method.
• 🎨 The box is finished with black spray paint to enhance its appearance, while the baffle is stained for contrast.
• 🪛 The speaker installation involves soldering connections and using heat shrink tubing for durability.
• 🔊 The bass box is tested, showing impressive sound quality and performance despite being a budget build.
• 🔍 The host reflects on the tools used, highlighting that while this project is budget-oriented, having the right tools can elevate the process.

Q & A

What is the main project discussed in the video?

The main project is building a budget bass box using a low-cost 12-inch subwoofer.

How much does the GRS Polycone 4-ohm 12-inch subwoofer cost?

The GRS Polycone subwoofer is priced at $22.98, but if you buy four or more, the price drops to $20 each.

What are the power rating and X-max of the subwoofer?

The subwoofer has a power rating of 125 watts and an X-max of 8.5 millimeters.

What type of enclosure design is recommended for this subwoofer?

A 1.5 cubic foot sealed box is recommended, which will have an F3 of 37 hertz.

What materials did Justin use to build the bass box?

Justin used scrap wood he had on hand, along with brad nails, wood glue, and plywood for the baffle.

What method does Justin prefer for assembling the bass box?

He prefers using brad nails and wood glue, as the nails hold the pieces together while the glue cures.

What mistakes did Justin mention he made during the build?

Justin made several mistakes, including using high-end tools, which may not be accessible for beginners, and not following his usual method for cutting the speaker hole.

What is Justin’s signature look for his speaker builds?

Justin’s signature look involves staining the baffle to create a contrast between it and the rest of the box.

How did Justin finish the baffle to achieve a smooth look?

He applied a layer of Minwax Polyshades, let it dry overnight, and then sanded it down with fine steel wool.

What was the overall performance of the bass box after testing?

The bass box performed well at higher volumes but did not reach very low frequencies, as expected with a sealed design having an F3 of 37 hertz.