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ZK-502MT 2x50W 2.0 Channel Subwoofer Amplifier Board Stereo Audio Speaker Module High Power Bluetooth-Compatible Bass Accessory
Feature:
Bluetooth-compatible audio amplifier module 2.0 dual-channel stereo output, maximum output power of 2X50W
AUX and Bluetooth-compatible audio input mode, two in one power amplifier board. Bluetooth-compatible 5.0, transmission efficiency is higher, transmission distance is longer
Adopt domestic chip program, output audio without filtering, standard sound quality
With short circuit protection and over current, over heat, anti-reverse connection protection, to prevent comprehensive failure. When an overload occurs, the device reports the failure to the processor to protect itself from damage
Use copper DC connector and fence terminal. Can withstand large current, do not heat, do not damage the wire.
With bass, treble, subwoofer frequency and volume control, easily adjust the volume, enjoy the music you want to sound. Widely used in shopping malls, home theaters, speakers and so on

Specification:
Model: ZK-502MT
Bluetooth-compatible Version: 5.0(no occlusion, 15m)
SNR: >90dB
Input mode: AUX+ Bluetooth-compatible
Number of channels: left and right double channels (stereo)
Power amplifier chip: domestic power amplifier chip
Adaptive power supply: DC9~24V/ above 3A (24V battery pack cannot be connected)
Adapter horn: 15~100W, 4~8Q
Supply voltage:
12V-----8 ohm /12W+12W, 4 ohm /20W+20W
15V-----8 ohm/18W +18W, 4 ohm/30W +30W
19V-----8 ohm/30W +30W, 4 ohm/40W +40W
24V----8 ohm/40W +40W, 4 ohm/50W +50W
Protection mechanism: overheat, overcurrent, short circuit protection
Size: 89mm*60mm*21mm/3.5X2.4X0.8in
Weight: about 111g(including packaging)

Tip:
Only when the audio input is enough and the power supply voltage/current is enough will there be enough output power!!
The higher the power supply voltage, the greater the output power, the smaller the horn impedance, the greater the output power!!
Please ensure that the adapter power is greater than the actual working power of the amplifier!!

Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-2cm measuring deviation due to manual measurement.