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The Onkyo HT-S8400 is a 7.1 channel home theater system made up of a receiver, a center speaker, two front, speakers, two surround speakers, and two standing surround back speakers. It is compatible with an optional accessories that allows it to wirelessly connect to online services such as Spotify, Pandora, and Slacker.


  • Status: Available
  • Price at launch: $799.00


  • Color: Black
  • 3D decoding: Yes


  • Audio decoding: Dolby Digital+, Dolby TrueHD, DTS-HD
  • Audio channels: 7.1
  • Max. video resolution: 1080p

Audio / Video

  • USB: 1

Storage / Data

  • FM antenna input(s): 1
  • AM antenna input(s): 1
  • Composite video input(s): 5
  • Component video input(s): 2
  • Digital optical audio input(s): 2
  • Digital coaxial audio input(s): 2
  • HDMI input(s): 4
  • Analog stereo input(s): 6

Input ports

  • HDMI output(s): 1
  • Component video output(s): 1
  • Composite video output(s): 2
  • Stereo analog audio output(s): 1

Output ports

  • Wi-Fi: Optional (proprietary)


  • Type: Surround Speakers, Front speakers, Center speaker, Subwoofer
  • Speaker(s): 4, 2, 1, 1
  • Speaker size (diameter): 3.15 inches, 9.84 inches
  • Frequency response (lowest): 20 kHz, 50 kHz, 50 kHz, 25 kHz
  • Frequency response (highest): 90 kHz, 55 kHz, 55 kHz, 150 kHz


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