Specification: _x005f_x000D_ Origin: Mainland China _x005f_x000D_ Type: Voltage Regulator _x005f_x000D_ Condition: New _x005f_x000D_ Model Number: 2 x 50W TDA7492 Class D High-Power Digital Amplifier Board  _x005f_x000D_ 1. Chip: TDA7492; _x005f_x000D_ 2. Sound channel: dual-channel output; _x005f_x000D_ 3. Input voltage: DC12-24V; _x005f_x000D_ 4. Input current: within 4.5A; _x005f_x000D_ 5. Maximum output power: 8 ohms/2*50W, 4 ohms/100W; _x005f_x000D_ 6. Audio input: RCL three-wire audio input; _x005f_x000D_ 7. Product size: 70*60*19mm/2.76*2.36*0.75inches _x005f_x000D_ _x005f_x000D_ Note _x005f_x000D_ 1. The module power input is not protected by reverse connection, so avoid short circuit when using; _x005f_x000D_ 2. High voltage and high power long-term use, need to strengthen the heat dissipation; _x005f_x000D_ 3. The audio input needs to distinguish between left channel, right channel and common ground. When using no audio output, you can first check whether the audio input is correct; _x005f_x000D_ 4. When the speaker impedance is 4 ohms, the module working voltage must be less than 15V; when the speaker impedance is 6 ohms, the module working voltage must be less than 20V; when the speaker impedance is 8 ohms, the module working voltage cannot exceed 24V. _x005f_x000D_ 5. 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! _x005f_x000D_ Please allow 1-2cm measuring deviation due to manual measurement. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Included: _x005f_x000D_ 1 x TDA7492 Digital Amplifier Board 1. Short Circuit & Overload Protection: This tda7492 audio receiver amplifier board module parts eatures output short-circuit and over-temperature overload protection, which prevents switch-on and switch-off shocks and ensures safe and reliable operation. 2. Adjustable Gain Control: The wireless audio receiver includes 4 groups of gain adjustments, with the factory module default set to maximum gain. This provides flexibility in adjusting the gain according to your specific needs. 3. Symmetrical Channel Layout: The left and right channel layout is designed to be fully symmetrical, eliminating any potential balance issues that can arise from varying cable lengths or circuit designs. 4. Bridgeable Mono Output: With its bridgeable mono output feature, this digital amplifier board allows for two-channel audio input to be converted to a single channel output with increased power. Simply connect the left and right audio input channels together and connect the negative and positive outputs to the speaker to achieve perfect results.