The ZK-502C Hi-Fi Stereo Amplifier is a compact yet powerful audio amplifier designed for high-quality sound performance.

Features :

• Power Output: 50W x 2, suitable for 4-8Ω passive speakers.
• Audio Quality: Uses the TPA3116D2 chip, ensuring low distortion (THD < 0>
• Connectivity: Supports Bluetooth 5.0 for wireless streaming and 3.5mm wired input.
• Build & Design: Comes with a bottom and top plate for added durability.

Specifications :

• Input Mode: Bluetooth / AUX
• Working Voltage: DC 5V-27V (Above 2A)
• Bluetooth Version: Bluetooth 5.0
• Bluetooth Transmission Distance: 50 Ft
• MAX Power Output: 50W x  2
• Terminating Impedance: 4 - 8 Ohm 

NOTE:

• The power amplifier board should be as far away from the WIFI signal (router) as possible to avoid signal interference.
• Please don't use too long wire.
• It is recommended to use a speaker above 50W.
• Different impedance speakers have different output power.In the case of sufficient voltage and current, the greater the impedance of the speaker, the smaller the relative sound power.