The video “Transforming dead earbuds into POWERFUL wireless speakers” is by Matt from DIY Perks. In this engaging project, Matt demonstrates how to repurpose non-functional wireless earbuds into an impressive pair of wireless stereo speakers. This innovative approach not only minimizes waste but also provides an opportunity to enjoy high-quality audio in a unique setup.
Why Repurpose Wireless Earbuds?
Many people have old wireless earbuds that no longer function correctly. Instead of tossing them in the trash, Matt emphasizes the potential of their internal technology. By transforming these earbuds into wireless stereo speakers, users can experience significant audio quality improvements compared to single-unit wireless speakers.
Choosing the Right Earbuds
For this project, Matt uses a set of defective Samsung Galaxy Buds. These mid-range headphones are affordable and commonly available, making them a suitable choice for recycling. The most common issues with these earbuds, like faulty diaphragms or dead batteries, won’t hinder the project since only the internal electronics are needed.
Disassembling the Earbuds
Opening the earbuds is straightforward; they can be pried apart to access the internal components. Matt highlights the importance of removing the speaker piece carefully, which may require some finesse. Once removed, the speaker can be desoldered from its ribbon cable, leaving solder pads for the audio output.
Preparing the Electronics
Next, the internal battery is removed to allow for external power. This step is crucial for two reasons: it addresses any battery issues and facilitates the use of an external switch for turning the speakers on and off, essential for Bluetooth connectivity.
Building the Speakers
After preparing the earbuds, the focus shifts to the speaker drivers. Matt selects high-quality drivers for optimal sound production. Each speaker unit will consist of a mid/treble driver and a subwoofer, ensuring a rich audio experience.
Enclosure Design
Wood is chosen for the speaker enclosures due to its density and acoustic properties. Matt decides on a rounded design to create a unique aesthetic. Using a CNC router, he cuts precise holes for the drivers, ensuring a professional finish.
Sealing and Mounting
Each speaker driver is mounted with putty to create a sealed enclosure, which is vital for sound quality. The enclosure is constructed using stacked layers of MDF, and a passive radiator is added to enhance bass response.
Amplification and Circuitry
To achieve high volume output, an amplifier is added. Matt explains the importance of using low-cost, efficient amplifiers that are readily available. He also introduces three special circuits that function as analog equalizers, optimizing sound quality for each driver.
Power Supply Setup
The project utilizes lithium-ion batteries with built-in protection circuitry. Matt explains how to create a battery pack to power both the amplifier and the earbuds, ensuring interference-free audio.
Final Assembly
With all components prepared, it’s time for final assembly. Matt carefully seals all connections and ensures a snug fit for the amplifier and battery pack. He emphasizes the importance of sealing to prevent air leaks, which could degrade audio performance.
Finishing Touches
To complete the look, Matt adds fabric to the enclosures. He chooses an acoustically transparent material to maintain sound quality while enhancing the aesthetic appeal of the speakers. The final product showcases a beautiful contrast between the fabric and wood.
Sound Test
The moment of truth arrives as Matt tests the speakers. With a simple flip of the switch, the speakers connect automatically to a smartphone. The audio quality impresses, showcasing rich bass, detailed mid-tones, and smooth treble, creating an exceptional listening experience.
Conclusion
Matt wraps up the project by highlighting the satisfaction of creating stunning, high-quality speakers from old earbuds. This DIY approach not only saves money but also promotes sustainability by repurposing electronics. Viewers are encouraged to try this project themselves and explore the endless possibilities of DIY audio solutions.
