ARRAROWN ZK-1001B Bluetooth Amplifier 100W Mono AMP with TWS Box – DIY Speaker Kit

Elevate your DIY audio with the ARRAROWN ZK-1001B Bluetooth Amplifier

Meet a compact 100W mono amplifier board designed to power passive speakers in DIY projects or car audio tweaks. Built around a high efficiency chipset, this module delivers clean power with distortion under 0.3 percent and supports AAC Bluetooth decoding for smoother wireless listening.

One standout feature is the TWS Box function. By pairing two identical mono amplifier boards, you can transform a single speaker into a simple left–right stereo setup, enabling more immersive sound for home theaters or car audio experiments.

The control surface is intentionally simple: a single multifunction knob handles volume, playback, and mode changes. A short press plays or pauses, a double press skips to the next track, and three presses toggles the TWS mode. A long press powers it on or off.

Inputs are versatile. You get Bluetooth 5.1 with a comfortable 15 m range, plus AUX and USB options for flash drives or sound cards. The device also supports USB powered audio inputs and can work with a range of mobile devices, laptops, or media players.

Compact and flexible, the ZK-1001B measures 89 by 45 by 20 mm and includes protective measures such as over‑voltage, under‑voltage, over‑heat, and short‑circuit safeguards. A DC 7–24 V power requirement makes it suitable for both home and vehicle installations.

What you get and how you might use it

• Powerful mono output up to 100 W into 3–8 Ω speakers suitable for small to mid sized DIY kits
• Box matching and TWS compatibility to expand from a single speaker to a two‑unit stereo setup
• Multiple input options for flexible integration with modern devices

• Simple control with a single knob for volume and playback and quick mode changes
• Compact footprint that fits into compact enclosures or car audio projects
• Protective circuitry keeps the board safe during casual tinkering

Whether you are rebuilding a compact home stereo, upgrading a car audio project, or prototyping a DIY speaker system, the ARRAROWN ZK-1001B offers a practical combination of power, convenience, and expandability without overwhelming complexity.