One of Onkyo's all-time bestsellers gets even better with Dolby Atmos decoding, HDMI 2.0 for 4K/60 Hz video support, Wi-Fi for Hi-Res network audio, and DSP-enhanced Bluetooth streaming. The HT-S9700THX is a convenient, easy-to-use package that's been tested and certified by THX to guarantee theater-reference volume and sound quality. Our high-current WRAT system uses a customized massive transformer and extra-large capacitors to drive discrete Three-Stage Inverted Darlington Circuitry on the L/R/C channels. Powerful and controlled amplification serves as a base for Dolby Atmos, a new audio format that uses new mixing technology to unleash overhead sound effects through height channels. And, of course, the premium 7.1-channel THX speaker package brings Dolby TrueHD and DTS-HD Master Audio movie soundtracks to life. The top quality A-OMF two-way speakers fill rooms with clear, dynamic, and detailed sound, and a huge sealed subwoofer shakes the walls with high-impact bass. Marrying the latest A/V processing and up scaling technology to high-current analog power, the HT-S9700THX also lets you escape into your choice of entertainment with a control app for your smartphone.