1. [PREMIUM AUDIO QUALITY] Experience sound with this 2.1 channel power amplifier board featuring 2×50W+100W output power and bass, treble, and subwoofer controls.
2. [ 5.0 TECHNOLOGY] Enjoy seamless wireless audio streaming with the latest version for enhanced transmission efficiency and longer range up to 32.8ft.
3. [PROTECTION MECHANISMS] from built-in safeguards such as short circuit, over current, overheating, and anti-reverse protection to ensure device longevity and safety.
4. [VERSATILE APPLICATIONS] Perfect for shop solicitation, home theaters, and speakers, this amplifier board offers flexibility and convenience for various audio setups.
5. [EASY INSTALLATION] Comes with all necessary components including acrylic boards, screws, , and connectors for hassle-free setup and use.
Specification:
Item Type: Audio Amplifier Board
Material: PCB
Purpose: Subwoofer Power Amplifier Board
Model: ZK-TB21
Chip: TPA3116D2
Version: 5.0 (Unobstructed 10m / 32.8ft)
Audio Input: AUX +
Number Of Channels: 2.1 Channels
Input Sensitivity: 500mV
Adapted Power Supply Voltage: 12-24V/5A Or More (Do Not Connect 24V Battery Pack)
Speaker: 20-100W, 4-8Ω
Output Power: Maximum 50W (Left And Right Channel), Maximum 100W (Subwoofer)
Protection Mechanism: Overvoltage, Undervoltage, Overheating, DC Detection, Short Circuit Protection
packing list:
1 x Amplifier Board Module
2 x Acrylic Board
1 x
9 x Screw
4 x Brass Connecting Rod
4 x Brass Terminal
5 x Knob
1 x Wire Input Socket
Note:
1. The power switch on the board is a standby switch. After the switch is turned off, the machine is in a low‑power standby state. Turn off the power completely or unplug the DC plug on the machine for a long time.
2. Please use a power adapter with sufficient power to connect to the power amplifier board, otherwise the sound will be distorted.
3. If the audio input is sufficient and the power supply voltage/current is sufficient, there is enough output power. The higher the power supply voltage, the greater the relative power. Speakers with different impedances will have different output . In the Box/Cover of sufficient voltage and current, the greater the ohm of the speaker, the smaller the relative sound power. Please make sure that the power of the adapter is greater than the actual working power of the amplifier.