ZK-502L MINI 50WX2 BT 5.0 Digital Speaker Amplifier Board Sound Module Knob with Volume Adjustment Switch 502L without shell

Note!

The shell version needs to be assembled by yourself, and the material package comes with a free screwdriver.

The suitable power supply of the product is DC power supply, and AC power supply is not allowed!

The color of the product may be slightly different from the picture due to the differences of light, angle and shooting equipment.

The product dimensions and weight are measured manually. Please allow slight deviation in the measurement data and make sure you don't mind.

Product parameters

Brand: Wuzhi Audio

Product Name: Mini 2x50W BT digital power amplifier board

Product model: ZK-502L

Adapted supply voltage: DC5~24V (optional 9V/12V/15V18V/24V adapter, high power recommended high voltage)

Adapter speaker: 30W~200W, 4, 8

Number of channels: Left and right stereo (stereo)

BT version: 5.0

BT transmission distance: 15 meters (without occlusion)

Protection mechanism: self recovery overheat protection, self recovery short circuit protection

Power supply voltage:

12V ------ 8 speaker/12W+12W, 4 speaker/20W+20W

15V ------ 8/18W+18W, 4/greater than 30W+30W

19V ------ 8/32W+32W, 4/greater than 45W+45W

24V ------ 8/38W+38W, 4/greater than 50W+50W

Tip: To have enough output power if the audio input is sufficient and the supply voltage/current is sufficient. The power supply voltage is higher and the relative power will be larger. The speakers with different impedances will have different output power. In the case of sufficient voltage and current, the large the ohms of the speaker,the smaller the relative sound power.Please pay attention!

Product introduction

Potentiometer to adjust volume, with switch for easy control of volume, very suitable for DIY speakers.

If it is a metal box, the Bluetooth antenna needs to be led out.

Using copper DC connectors, it can withstand high currents without generating heat.

The 470uf35V solid-state capacitor ensures the ability to store and dissipate electricity, and stable and continuous power supply is a prerequisite for good sound quality.

Sending DC head wires is compatible with the input power interface of this product, making it easy to connect even if you don't have a DC head adapter or battery.

5.0 BT version, with higher transmission efficiency and longer transmission distance.

The power amplifier module does not include a power supply and requires an external power supply. It can also be connected to a laptop power supply.

Usage precautions: The power switch on the board is a standby switch. After turning off the switch, the machine will enter a low-power standby state. To completely turn off the power or not use it for a long time, you can unplug the DC plug on the machine.