ZK-MT21 Bluetooth Amplifier Board

The ZK-MT21 Bluetooth amplifier board brings reliable wireless audio control to your DIY sound projects. This Bluetooth amplifier board offers clean power and stable performance for home, workshop, and custom builds.

Bluetooth amplifier board – Benefits for You

✅ Enjoy smooth wireless streaming so you can place your audio source anywhere without cable clutter.

✅ Experience fuller, richer sound that elevates movies, music, and game audio in your custom setup.

✅ Switch easily between Bluetooth and AUX so you can connect whatever device fits your moment.

✅ Fine‑tune your audio with tone controls so your system always matches your preferred listening style.

✅ Count on efficient power management so your system stays stable even during high‑volume sessions.

✅ Build confidently knowing the board integrates effortlessly into a wide range of DIY speaker projects.

✅ Reduce installation stress thanks to a layout designed for quick, intuitive assembly.

Use it to give new life to existing speakers or power a fresh project with dependable wireless performance.

Create the sound you want with a board designed for smooth everyday listening.

This 2.1‑channel module fits neatly into compact audio enclosures, making it easy to integrate into custom speaker boxes, desktop builds, or home entertainment setups. Its sturdy black PCB and carefully arranged components support consistent performance while maintaining a slim profile that works well in tight spaces.

The board’s design supports a balanced combination of stereo output and subwoofer power, giving your system depth and clarity suited for music and movies alike.

Bluetooth 5.0 connectivity keeps pairing fast and consistent, while the AUX input offers a dependable wired alternative whenever you need it.

You can power the board with a 12–24V DC supply, giving you flexibility to match it with the power source already in your project.

The board supports speakers from 4–8Ω, making it suitable for small bookshelf speakers, desktop systems, or compact subwoofer enclosures.

Its output capabilities include 50W per left and right channel, along with dedicated subwoofer power that reinforces low-end performance.

The compact structure helps keep installations tidy, especially in portable or multi‑component systems where space matters.

The board arrives ready for case assembly, giving you the freedom to house it in a design that fits your build.

Color tone may vary slightly depending on display settings, and minor measurement differences are normal due to manual handling.

Upgrade your next audio project with reliable wireless power—add the ZK‑MT21 to your setup today.