5.1-Channel Network A/V Receiver/Speaker Package

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All-Purpose Home Theater Package with High-Class Speakers

As Onkyo’s top packaged system, the THX® I/S Plus™-certified HT-S9405THX boasts a speaker set to savor. All five 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-S9405THX oozes class from first to last.

THX® Integrated System Plus™ Certified and THX Processing for Music, Movies, and Gaming

THX Integrated System (I/S) Plus is a category for home theater systems that ensures full-blown THX performance and state-of-the-art technologies in an affordable, all-in-one receiver-speaker package. Geared to gamers and budding audiophiles, THX I/S Plus systems are ideal for small home theaters where the screen-to-seat viewing distance is approximately 2.5 meters. All components within the system—the receiver, speakers, and amplifier—are tested by THX to make sure they work harmoniously together. In addition to THX certification, each system comes with THX® Surround EX™; THX listening modes for music, movies, and games; and THX® Loudness Plus™, a volume-control technology for low-volume listening.

4K Video Upscaling and Processing via Qdeo™ Technology

The HT-S9405THX offers full 4K (3840 x 2160) upscaling of standard video sources such as 480i/p, 720p, and 1080i/p. Interlaced-to-progressive conversion and scaling are performed by high-quality Qdeo technology from Marvell. Qdeo is a versatile video processor that uses algorithms designed to erase video noise and artifacts such as jaggies and feathering. Played back on a compatible wide-screen display, your Blu-ray Discs and DVDs will look more detailed and cinematic than ever.

A-OMF (Advanced Onkyo Micro Fiber) Diaphragm

Onkyo’s proprietary A-OMF diaphragms incorporate a PEN (polyethylene naphthalate) layer with a flexible cotton weave that helps to make them stronger and more resistant to heat. Speakers using this diaphragm type achieve improved mid-range clarity and imaging, which in turn produces an astonishingly vivid, natural sound.

Supplied Accessories

Firmware Updates

Onkyo Remote App

  • Onkyo Remote App


HT-R990 7.1-Channel Network A/V Receiver

130 W/Ch (6 Ohms, 1 kHz, 1%, 1 Channel Driven, IEC)

THX® I/S Plus™ Certified

HDMI® Support for 3D, Audio Return Channel, DeepColor™, x.v.Color™, LipSync, Dolby® TrueHD, DTS-HD Master Audio™, DVD-Audio, Super Audio CD, Multichannel PCM, and CEC

4 HDMI Inputs and 1 Output

HDMI Video Upscaling to 4K with Qdeo™ Technology by Marvell

Direct Digital Connection of iPod/iPhone via Front-Panel USB Port

Compatible with UWF-1 Wireless LAN Adapter (via USB)

Dolby® TrueHD, DTS-HD Master Audio™, Dolby® Digital Plus, DTS-HD High-Resolution Audio™ Decoding

TI Burr-Brown 192 kHz/24-Bit DACs for All Channels

PLL (Phase Locked Loop) Jitter-Cleaning Circuit Technology for S/PDIF Audio

Dolby® Pro Logic® IIz for Expanded Surround Channels

Playback of Audio Files Through Local Network (MP3, WMA, WMA Lossless, FLAC, WAV, Ogg Vorbis, AAC, LPCM)

Internet Radio Connectivity Through vTuner

Certified with Windows® 7 and DLNA Version 1.5

Firmware Updates via Ethernet and USB

Universal Port for Onkyo Peripheral Devices Such as UP-A1 Dock for iPod/iPhone

Powered Zone2 and Zone 2 Line-Out for Distributed Audio Playback in Another Room

Audyssey 2EQ for Room Acoustic Correction

Audyssey Dynamic EQ® for Loudness Correction

Audyssey Dynamic Volume® to Maintain Optimal Listening Level and Dynamic Range

Overlaid On-Screen Display (OSD) via HDMI

H.C.P.S. (High Current Power Supply) Massive High Power Transformer

Optimum Gain Volume Circuitry

Advanced 32-Bit Processing DSP Chip

4 DSP Modes for Gaming: Rock, Sports, Action, and RPG

Advanced Music Optimizer for Compressed Digital Music Files

Theater-Dimensional Virtual Surround Function

Direct Mode

Double Bass Function

Non-Scaling Configuration

A-Form Listening Mode Memory

2 Component Video Inputs and 1 Output

5 Composite Video Inputs (1 Front/4 Rear) and 2 Outputs

4 Digital Audio Inputs (2 Optical and 2 Coaxial)

6 Analog Audio Inputs (1 Front/5 Rear) and 1 Output

Analog RGB Video Input (D-sub, 15 pin) for PC

Subwoofer Pre Out

A/V Sync Control (Up to 800 ms at 48 kHz)

3-Mode Display Dimmer (Normal/Dim/Dimmer)

40 FM/AM Random Presets

RIHD (Remote Interactive over HDMI) for System Control

Full-Function RI Remote Control

HTP-948 5.1-Channel Home Theater Speaker System

SKF-980 2-Way Acoustic Suspension Front Speakers

12 cm A-OMF Diaphragm Woofer x 2

2.5 cm Soft-Dome Tweeter

Max. Input Power: 130 W

Magnetically Shielded

SKC-980 2-Way Acoustic Suspension Center Speaker

12 cm A-OMF Diaphragm Woofer x 2

2.5 cm Soft-Dome Tweeter

Max. Input Power: 130 W

Magnetically Shielded

SKR-980 2-Way Acoustic Suspension Surround Speakers

13 cm A-OMF Diaphragm Woofer

2.5 cm Soft-Dome Tweeter

Max. Input Power: 130 W

Note: All speakers feature an impedance of 8 Ohms, color-coded speaker terminals and cable, and wall-mounting capability.

SKW-938 Acoustic Suspension Powered Subwoofer

30 cm Cone

Rated Output Power: 125 W (Minimum Continuous Power, 6 Ohms, 100 Hz, 1%, IEC)

Output Level Control



Power Output: 130 W/Ch (6 Ohms, 1 kHz, 1%, 1 Channel Driven, IEC)

Frequency Response: 20 Hz–50 kHz/+1 dB, -3 dB (DSP bypass)

Dimensions (W x H x D): 435 x 173.5 x 328 mm

Weight: 9.3 kg


Frequency Response:
Front 50 Hz–45 kHz
Center 50 Hz–45 kHz
Surround 50 Hz–45 kHz
Subwoofer 20 Hz–100 Hz

Dimensions (W x H x D):
Front 158 x 433 x 199 mm
Center 433 x 158 x 199 mm
Surround 200 x 275 x 169 mm
Subwoofer 380 x 444 x 429 mm

Front 5.3 kg
Center 5.3 kg
Surround 3.5 kg
Subwoofer 15.5 kg

Due to a policy of continuous product improvement, Onkyo reserves the right to change specifications and appearance without notice.