ZK-1002L Mini High Power Bluetooth Amplifier Board with Knob Adjust Volume Switch

Build or upgrade your DIY speaker system with the ZK-1002L Bluetooth 5.0 Stereo Amplifier Board. This compact audio amplifier module features dual-channel stereo output, adjustable volume control with an integrated power switch, and a heatsink for efficient heat dissipation. Ideal for DIY speakers, audio projects and custom sound systems.

Key Features

• Bluetooth 5.0 Connectivity: Wireless audio transmission with a stated range of up to 15 metres in unobstructed conditions.

• 100W Rated Power: Designed for compatible speaker systems, with left and right stereo output channels.

• Adjustable Volume Control: Built-in potentiometer knob allows convenient volume adjustment and includes a standby switch.

• Efficient Heat Dissipation: Large black-and-gold heatsink helps manage operating temperature.

• Stable Power Design: Four capacitors support power storage and stable operation.

• High-Current DC Connector: Copper DC input connector designed to handle the required power current.

• Convenient Wiring: Grid-style terminal block makes speaker wiring straightforward and helps keep adjacent connections separated.

• Built-In Protection: Self-recovering short-circuit and overheat protection mechanisms.

• Compact DIY Design: Small dimensions make it suitable for integration into custom speaker enclosures and audio projects.

Specifications

• Model: ZK-1002L

• Bluetooth Version: 5.0

• Rated Power: 100W (manufacturer-stated)

• Channels: 2-channel stereo (left + right)

• Speaker Impedance: 4–8Ω

• Recommended Speaker Power: 50–300W (manufacturer-stated)

• Power Input: DC 5–24V

• Wireless Range: Up to 15m (unobstructed)

• Volume Control: Potentiometer knob with standby switch

• Protection: Self-recovery short-circuit and overheat protection

• Dimensions: 69 × 53 × 22mm

• Weight: Approximately 124g

Package Includes

• 1 × ZK-1002L Bluetooth Amplifier Board

• 1 × DC power connection cable with plug

Important Notes

• The amplifier's actual output power depends on the supply voltage, power supply current capacity, speaker impedance and operating conditions. The stated 100W rating should not be assumed at every input voltage.

• Use a suitable DC power supply within the specified 5–24V range.

• The onboard switch places the amplifier in low-power standby mode; unplug the DC connector to disconnect power completely.

• When installing the board inside a metal enclosure, extend the Bluetooth antenna outside the enclosure for better wireless reception.

• Speakers and external power adapter are not included unless specified in the selected package.