ZK-1001B Bluetooth Amplifier Board 100W Mono - TWS Pairing for DIY

In this review the Daakro ZK-1001B Bluetooth Amplifier Board is judged as a practical, budget-friendly option for DIY wireless speaker projects and small home AV setups. The biggest reason to buy is its TWS pairing and flexible inputs, which let two identical modules form true left and right channels without wiring-useful for hobbyists building compact bookshelf or desktop systems. The board's combination of a TPA3116D2 power amp, wide DC 7-24V range and multiple input modes makes it a straightforward way to add wireless capability and up to 100W mono power to a custom cabinet.

Key Features

• TWS Mode: Lets two identical modules pair to create separate left and right channels, so users can build stereo speaker systems without running speaker wire between amps.
• Multiple Inputs: Bluetooth, AUX, USB flash drive and USB sound card inputs provide flexible playback options for phones, TVs, PCs and standalone USB media.
• TPA3116D2 Chip: Uses a TPA3116D2 high-fidelity amplifier chip capable of delivering up to 100W peak output for a single-channel driver in small enclosures.
• Wide Voltage Range: Operates from DC 7V to 24V, giving builders flexibility to run the board from common adapters, battery packs or bench supplies.
• Knob Controls: Multi-function knobs allow volume adjustment, play/pause, next track and power on/off with press-and-hold, simplifying front-panel control on a DIY cabinet.
• Two Indicator Lights: WORK and TWS indicators give clear visual feedback for operation and pairing status during setup and daily use.

Who It's For

The ZK-1001B is aimed at hobbyists and DIY audio builders who want to add modern wireless features and a single, fairly powerful mono channel to a compact speaker project. It is also a good fit for small office or bedroom setups where a simple mono amplifier, USB playback and Bluetooth are sufficient.

It is not intended for users who need built-in tone controls, high-channel home theater AVR features, or finished retail speakers; those buyers should look to integrated receivers or pre-built powered speakers. Also, those requiring more than a single mono channel per module will need two boards and some cabinet work to build true stereo.

Pros & Cons

Pros

• Compact board with versatile inputs makes installation into custom cabinets straightforward.
• TWS pairing is convenient for creating separated stereo channels without running speaker wire.
• Robust power chip and large heat sink concept support higher output and thermal management in small enclosures.
• Easy front-panel control with multifunction knobs and clear status LEDs simplifies daily use.

Cons

• Single mono channel per board means you need two units and proper matching speakers to achieve full stereo.
• No onboard advanced tone or DSP controls, so EQ adjustments must be external or handled at source.

Specifications

Power Amplifier Chip	TPA3116D2
Input Voltage	DC 7V-24V
Max Power Output	100W (mono)
Input Methods	Bluetooth, AUX, USB flash drive, USB sound card
Bluetooth Version	BT 5.1
Output Impedance	4-8 ohm

Our Verdict

The ZK-1001B is a practical and cost-effective module for DIY builders who want a simple route to Bluetooth playback and the option to create stereo via TWS pairing. Its use of a TPA3116D2 chip and multiple input options make it a flexible component for small speaker projects, though this is a board-level product best suited to hobbyists rather than plug-and-play consumers seeking finished speakers.

Frequently Asked Questions

Can two ZK-1001B boards be used for stereo?
Yes. Press the power knob three times to enter TWS mode on each unit and the two boards will pair to provide left and right channels without a wired link.

What power supplies work with this board?
Any regulated DC supply between 7V and 24V that can deliver sufficient current for your speaker and power level will work; choose an adapter rated for continuous current at the desired output.

Does it support USB playback from a flash drive?
Yes, the board accepts USB flash drive playback as well as a USB sound card input for computer audio.