As Onkyo's top packaged system, the THX I/S Plus-certified HT-S9400THX boasts a speaker set to savor. All seven speakers employ a two-way design with A-OMF cone woofers for superb mid-range clarity. The matching powered subwoofer delivers awesome low-end for even the most demanding music, movies, and games. As well as handling internet radio and PC audio sent over a home network, the system's receiver offers a bevy of handy connections. Four 3D-ready HDMI inputs take care of high-def content, such as lossless audio from Dolby or DTS, and video upscaled to spectacular 4K resolution via Qdeo technology. A front-panel USB input provides a digital link for iPod/iPhone audio. Other inputs let you incorporate PC video, Onkyo peripherals, and countless other playback sources. Audyssey technologies enable you to customize the soundstage, dynamics, and volume, while interactive on-screen menus let you navigate your content with ease. When it comes to all-in-one home entertainment, the HT-S9400THX oozes class from first to last.