Onkyo HT-S9400THX Home Theater in a Box Specs

Audio Decoding:
Dolby: TrueHD, DD Plus, PL IIz
DTS: DTS-HD Master Audio, HD-High Resolution Audio, Neo:6
Other: Onkyo Game Surround Modes
3D: Yes
THX Certification: Yes
Number of Amp Channels: 9
Rated Power (watts per channel): 130 into 6 ohms @1kHz with 1 channel driven
Specified Frequency Response: 5Hz to 100kHz
Video Processing: Marvel Qdeo with 4K upscaling
Auto Setup/Room EQ: Audyssey 2EQ
A/V Receiver Dimensions (W x H x D, inches): 17.25 x 6.75 x 13
Front Speaker Dimensions (W x H x D, inches): 6.25 x 17 x 7.75
Center Speaker Dimensions (W x H x D, inches): 17 x 6.25 x 7.75
Surround Speaker Dimensions (W x H x D, inches): 8 x 10.75 x 6.5
Subwoofer Dimensions (W x H x D, inches): 15 x 17.5 x 17
A/V Receiver Weight (pounds): 19.8
Front Speaker Weight (pounds): 11.7
Center Speaker Weight (pounds): 11.7
Surround Speaker Weight (pounds): 7.7
Subwoofer Weight (pounds): 34.2
Price: $1,099

Video: HDMI 1.4 (4), component video (2), composite video (5, one in front)
Audio: Coaxial digital (2), optical digital (2), stereo analog (6, one in front)
Additional: Ethernet (1), USB (1, front), VGA (1), Universal port (1), wireless LAN (optional with adaptor)
Accessory: iPod/iPhone dock (optional), WiFi adaptor (optional)
Video: HDMI 1.4 (1), component video (1), composite video (2)
Audio: Stereo analog (1), subwoofer (1)
Additional: N/A

Manufacturer Info


techguy378's picture

At this price point there's really no reason Onkyo couldn't have included the 6 position Audyssey MultEQ calibration complete with subwoofer calibration. With Audyssey you really don't need THX. Audyssey does everything THX does better. I guess that's why Denon has better sound quality at almost any given price point than Onkyo.

AlexM's picture


I have spent a couple months trying to setup the channel levels for HT-S9400THX. Audyssey's 2EQ auto calibration did everything wrong: the calibration sequence for the right and left channels was incorrect; the speaker distances came out completely wrong after calibration. Even after changing the calibration sequence the system sounded very inaccurate.

The firmware update from 12/20/2011 has corrected Audyssey's 2EQ auto calibration problems except for the subwoofer calibration. The channel level for subwoofer has come out +7. I had to manually adjust the subwoofer down to -1.

Bottom line: The real problem with this system is not the speakers, but the incorrect calculations for Audyssey's 2EQ auto calibration.

Onkyo HT-S9400THX sounds 4.5 stars after firmware update.

Naim Audio's picture

Disagree that you don't really need THX - it does fine tune things in my humble opinion.

beysic's picture

After only owning this for 2.5 years, the receiver failed. Sound output stopped and some of the menus like LAN, firmware upgrade, and Remote Controller were disabled (greyed out). One night it worked great and then the next morning it didn't. To my disappointment, it only had 2 years parts and labour and Onkyo wouldn't do anything. If you google 'HT-R990 no sound' there are other users complaining of the exact same symptoms just after their receiver goes out of service, or coming to that date.