Digital Amplifier Board High Power 2.0 HIFI Stereo 160wx2 TDA7498E Support for BTL220W 1. Amplifier Board: Equipped with a stereo port, this audio amplifier board provides lossless sound quality and high resolution.2. Adjustable Design: Supports BTL mode, AMP module has 4 fixed gains to set, 29.6dB, 33.1dB, 35.6dB, 35.6dB.3. Safe Protection: It has short circuit protection, overheating protection as well as reverse protection for safe operation.4. Stable operation: Adopting air cooling and large heat dissipation area for temperature control, it can work stably for a long time.5. Practical use: the output power is 160W + 160W, which allows flexible use in home theater, large speaker, etc. Specification: Item type: digital amplifier board Material: printed circuit board Function: power amplifier board Input voltage: DC 12V-32V Chip model: TDA7498 E Output power: 160W + 160WBTL output power: 220W Efficiency: 85% Suitable speaker impedance: 4 ohms, 6 ohms, 8 ohms 4 fixed gain settings available: 29.6 dB, 33.1 dB, 35.6 dB, 35.6 dB. Features: support BTL mode (short circuit J1, J2, J3 , J4 on the back of the power amplifier board). Package List: 1 x Digital Amplifier Board Note: Do not use it beyond the voltage range.