[ Diy Kit ] LM3886 Fully Balanced Power Amplifier Board Kit 120W HiFi Stereo Amp Product Details: This is a two-channel, one-board one channel. This is the price of two boards kit. Each channel uses two Texas Instruments original LM3886FT amplifier chip. The signal path resistance adopts the ring resistor of 1% of 718 military regulation precision. The high-power resistance adopts Fukushima of Japan or Japan light tone, which ensures the good signal-to-noise ratio of the whole machine. Main filtering Using two NOVER 10000UF / 50V HiFi capacitance. UPC1237 + Omron relay speaker protection circuit. The pure dc structure is adopted. Fully balanced structure. Two channels separate system board, and separate power supply, the volume potentiometer point chassis through the ground, the real realization of dual mono, two channels do not affect each other, to eliminate mutual crosstalk, so absolutely discrete. Specifications: Supply voltage: the main voltage AC 24V-0-24V; vice voltage AC 15V-0-15V Output power: Each channel rated 120W, impedance 6-8 ohms Input parameters: single-ended input impedance 20K, balanced input impedance 50K Net weight: 0.28KG (one channel) Dimensions (W*H*L): 85MM*55MM*170MM (one channel) Note: This price does not include the radiator. Tip: We have suitable transformers and radiators, please contact me if you need it! The power amplifier board is a kit all parts need buyer to solder the kit included main capacitance Package Included: 1 LM3886 2-channel amplifier board kit (no heatsink)