Features: Usings IRF240 IRF9240 MOStransistors. Input coupling capacitors adopts 50V/3.3UFs The wiring layouts of the entire circuit board is quite rigorous and reasonable, and the overall board wiring adopts a single point groundingmethod. This power Amplifiers board work stably andreliably, with a highoutputpower; Voice is beautiful and round, with a broad soundfields. Strong three-dimensionalssense, stable and solid low-frequency, excellent signal-to-noiseratio, and wide dynamic rangings; Clear details and excellent transients response, can handle various types of music with ease, performing well in home playbacks environment. Specifications: Material:ABS Power supply: + -35Volt Power: 80W (+ -35Volt 4Euro) 1channel Distortion: THDis 0.012% into 1 kilohertz and fullpowers,THDis 0.015% into 10 kilohertz and fullpowers Size:Approx.110mm/4.33''x90mm/3.54''x50mm/1.97'' Package Includes: 1x Power Amplifiers note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.