Features: High-power digital amplifier board, two-channel stereo, high-power 160W*2. Symmetrical capacitor design 12 fever volume, 470uf*12=5640uf high-quality inductor, red ring inductor heats up small, high sound quality. The power amplifier board has good sound quality and can drive 4/6/8 ohm speakers. Lossless high-definition sound quality, stereo interface with perfect sound quality. The power amplifier module has a large heat dissipation area and supports temperature-controlled air-cooled intelligent heat dissipation. Support BTL mode (short J1, J2, J3, J4 located on the back of amplifier board). Specifications: Item Type: TDA7498E Amplifier Board Output power: 160W+160W (Vcc=36V, RL=4Ohm, THD:10%) Output power: 1x220W single channel in parallel BTL(Vcc = 36 V, RL = 3Ohm, THD: 10%) High efficiency: 85% Applicable speaker impedance: 4ohm, 6ohm, 8ohm Four fixed gain: 29.6dB, 33.1dB, 35.6dB and 35.6dB Material: Matel+Plastic Package include: 1 x TDA7498E Amplifier Board