ITEM NAME:50Wx2 Tpa3116D2 Dual Channel Digital Power Amplifier Board Stereo Amp Dc 9V V7A2 50Wx2 Tpa3116D2 Dual Channel Digital Power Amplifier Board Stereo Amp Dc 9V V7A2 Model Number:YG-ZTPA3116D2 Channels:2 (2.0) Product Name: Digital 2.0 Channel Amplifier Board Core Device: TPA3116 Voltage range: DC10-25V Output power: 50W Output load: 4-8 ohm Frequency Response Range: 14-100KHZ Signal to noise ratio: no less than 100DB Switching frequency: 1.2MHZ colour:blue Material:Metal + PC size:50X 79X 22mm Package Contents: 1 * Digital Power Amplifier Board