ITEM NAME:TDA7498E 160W+160W 2 Channel Audio High Power Amplifier Board ModuleB Ew Specification: Brand new Amplifier Chip: TDA7498E PCB Board Size: approx. 108*78mm / 4.25" * 3.1" Working Voltage: DC 15-36V(Recommend 32V, 8A) Output Power: 2 x 160W Number of Channels: Two-channel Stereo Efficiency: 85% Applicable Speaker Impedance: 4/6/8ohm(8ohm is the best) Feature: High output power digital amplifier. With reverse polarity protection. When heat sink temperature rises to a certain extent, the cooling fan will work. Support BTL mode ( J1, J2, J3, J4 on the back of amplifier board should be shorted), 36V 3ohm for single channel with 220W output. Two-channel stereo, can drive 4/6/8 ohm speakers. Fine workmanship and good performance. Easy to use. Long service life. Package included: 1 x Digital Amplifier Board Note: Please allow 1-5mm errors due to manual measurement. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same..Amplifier Chip: TDA7498E. Output Power: 2 x 160W. Support BTL mode ( J1, J2, J3, J4 on the back of amplifier board should be shorted), 36V 3ohm for single channel with 220W output. High output power digital amplifier.