7 the samsung ht-f9750w is a premium 7.1-channel, 1330w home theatre system that combines a 3d blu-ray player, advanced digital amplification (gan and vacuum tube), and 4k video upscaling. it delivers powerful, cinema-like surround sound with sleek, tallboy satellite speakers amplifier type: hybrid system utilizing both vacuum tube technology and gan (gallium nitride) amplifiers for rich, warm, and distortion-free audioaudio decoding: dolby digital, dolby digital plus, dolby pro logic ii, dolby truehd, dts, dts-hd master audio, and dts neo:fusionvideo formats: 3d blu-ray, dvd, divx hd, network & streaming: built-in wi-fi, wi-fi direct, dlna, and ethernet, granting access to samsung’s smart hub for web browsing and appswireless: bluetooth and allshare for easy screen mirroring and audio streaming from mobile devices