Zailen Audio TW100U 100W Mono Amplifier Board - Bluetooth 5.3, TWS, 19V/24V Boost

Meet the TW100U 100W Mono Amplifier Board

From Zailen Audio, the TW100U brings power, flexibility, and DIY accessibility into a compact amplifier board. Built around a high‑efficiency Class D design, it delivers clean mono output suitable for a wide range of passive speakers, from compact bookshelf setups to small DIY audio rigs. A built in boost circuit adds practical headroom, allowing you to reach higher voltages like 19V or 24V even when your supply sits lower on the scale. In real world use, this can translate to more responsive dynamics and clearer transients without forcing a power rail to its limit.

Every project has its own constraints and goals. The TW100U is designed to adapt with multiple input options and a straightforward mode switch, letting you switch between Bluetooth, AUX, and USB inputs without reworking your wiring. The upgraded Bluetooth 5.3 implementation aims for faster pairing and a wider operating range, while an optional external antenna on the Bluetooth base helps keep connections stable in larger rooms or challenging environments.

Power and efficiency

• Built in boost circuit supports 19V or 24V output for stronger performance from lower voltage sources.
• TPA3116D2 chip provides up to 100W mono output with low distortion and clear, detailed sound.
• Designed to operate from a 12–24V DC input, offering broad compatibility with common power supplies.

Flexible inputs and control

• Bluetooth 5.3 connectivity for quick, reliable wireless audio and broader range.
• 3.5 mm AUX input and USB input for versatile wired and digital sources.
• Intuitive physical mode switch to select inputs without fumbling through menus.

Wireless stereo possibilities

• TWS wireless pairing enables you to wire two TW100U units into a wireless stereo arrangement, expanding your listening space without extra cables.

Connectivity and range

• Bluetooth antenna base supports external antenna connection for improved stability and coverage in larger or complex layouts.

Whether used in a compact home system, a DIY speaker project, or a studio setup, the TW100U offers a practical path to enhanced sound and flexible connectivity. The design emphasizes possibilities over guarantees, inviting you to explore how the boosted voltage, multiple inputs, and wireless options fit your listening needs.