Features 1.DUAL CHANNEL STEREO: Digital stereo power amplifier board with TDA7498E original chip, dual channel stereo sound, gives you a powerful music feeling. 2.LOSSLESS HD SOUND QUALITY: Digital stereo power amp module has lossless HD sound quality and can drive 4/6/8 Ohm speakers. Stereo interface for perfect sound quality. 3.BTL MODE: Sound power amplifier board supports BTL mode (J1, J2, J3, J4 short circuit on the back of the amplifier board), mono 36V 3ohm, 220W output. 4.HEAT DISSIPATION: Digital amplifier board has a large cooling area and supports temperature controlled air cooled intelligent cooling to prolong service life. 5.ROBUST AND DURABLE: Two channel sound power amplifier board is made of PCB and metal materials, exquisite workmanship, rugged and durable. specificationItem Type: Digital Stereo Power Amplifier Board_x000D_ Material: PCB, Metal_x000D_ Power Amplifier Chip: TDA7498E_x000D_ Operating Voltage: DC 12-32V (32V, 8A Recommended)_x000D_ Output Power: 2 x 160W_x000D_ Number Of Channels: Dual Channel Stereo_x000D_ Efficiency: 85%_x000D_ Applicable Speaker Impedance: 4-8 (8 Best)_x000D_ Features: BTL Mode Gain Adjustable PackageList1 x_x000D_ _x000D_ DigitalStereoPowerAmplifierBoard 1 x Knob 1 x Nut 1 x Gasket Note1. TDA7498E digital amplifier board 2.0 HIFI dual channel stereo high power 2 x 160W support BTL mode (amplifier board back J1, J2, J3, J4 short) BTL mode requires professionals to handle, non professionals be careful. 36V power supply 3Q mono 220W output. Please note that the premise of the maximum power output is the power supply and speaker requirements are in the official recommended range, with the time please note the use of sufficient power._x000D_ 2. Power supply and impedance of the appropriate speakers, let's say 12V power supply with 8ohm speakers in any case can not get to the power of 16OW per side. For the sake of safety, we suggest that the power supply voltage should be controlled within 32V to avoid the safety hazards brought by the unstable mains power supply.