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Sony Logo

7.1ch Soundbar with Wi-Fi/Bluetooth® technology

Model # HTST9

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Note: Due to manufacturer policy, this product cannot be added to your cart.
Contact Brook Valley Appliance for more details.

The Way The Artists Truly Intended

Enjoy the subtlest nuances of studio-quality sound in higher than CD quality with High-Resolution Audio. Passion for music unites every component from signal to speaker so it feels like the artist is performing right in front of you.

Feel the action all around you

7.1 ch S-Force PRO Front Surround technology

Our virtual surround sound combines Digital Signal Processing and Wave-front technology to emulate a natural, three-dimensional sound field, all from a single sound bar and subwoofer.

Watch the video

See the HT-ST9 up close and explore how 7.1 channel surround sound works in this High-Resolution Audio-capable sound bar.

Dolby® TrueHD

Enjoy clear, high-fidelity sound with the Dolby® TrueHD lossless compression format.


Bring movies and music to life in dynamic surround sound thanks to the DTS-HD format.

Get connected

It's easy to expand your home theater setup. With three HDMI inputs, one HDMI ARC output, a USB input, and optical digital and analog connections, there's space for all your equipment.

4K pass-through

Maintain 4K quality from source to screen - the 4K passthrough feature allows data to pass through the sound bar without compromising image quality, and is HDCP 2.2 compatible.

What is High-Resolution Audio"

High-Resolution Audio refers to a collection of digital processes allowing the encoding and playback of music using higher sampling rates than those used in CDs.

S-Master HX digital amplifier

Our S-Master HX amplifier is digital, eliminating analog components to reduce noise levels in the feedback stage for ultimate audio clarity.

Digital Sound Enhancement Engine HX

Even music from online streaming services can be upscaled by DSEE HX to produce rich sound closer to High-Resolution Audio .


From game mode to movie or music mode, ClearAudio+ automatically adjusts sound settings to suit whatever you're watching or listening to.

Engineered for exceptional sound

From speaker construction to fine-tuned audio technologies, every element of the HT-ST9 has been engineered to deliver the highest possible sound quality.

Precise, full-range sound

The woofer and tweeter are housed within a single speaker unit, utilizing separate drivers to reproduce a full range of sound that perfectly supports High-Resolution Audio playback.

Clear, natural highs

Super tweeters ensure high-frequency notes are reproduced with outstanding natural clarity and detail, so you'll enjoy pristine highs across music and dialogue.

Rigid carbon fiber diaphragm

A sturdy carbon fiber diaphragm responds quickly to mid and high frequencies with less distortion, improving sound reproduction across the entire frequency range.

Magnetic fluid technology

Magnetic fluid technology replaces conventional speaker dampers for better signal transfer, reducing distortion for high-quality sound from a smaller speaker.

Connect with your music

It's easy to stream your favorite music in the detail and clarity it deserves, thanks to a combination of wireless technologies and high-quality audio codecs.

High quality wireless audio streaming

Take your music streaming to the next level. Developed by Sony, the LDAC codec supports up to three times greater bit rate than typical Bluetooth streaming. Combining efficient coding with a 96 kHz sampling rate, LDAC captures more detail for above CD quality listening.

Wireless personal listening

Enjoy wireless sound without disturbing others

Stream music from the sound bar to any Bluetooth® wireless device, including the latest LDAC-compatible High Resolution headphones.

Connect in an instant

Make a quick connection between selected smartphones and the sound bar with NFC One-touch.

Bluetooth streaming

Stream music wirelessly from your smartphone, tablet, or laptop via Bluetooth.

Wireless streaming

Connect to the Internet with the built-in Wi-Fi® to stream audio from your laptop or mobile device.

Works with Google Home

With Google Home, you can voice control Sony's audio products. You can turn up the volume, skip to the next track, or stop the music, all without lifting a finger.

Easily access your music

Enjoy easy access to a wealth of music and more, thanks to Chromecast built-in (previously Google Cast ) and Spotify Connect.

Chromecast built-in

Stream music, online radio, and podcasts from your smartphone, tablet, or laptop to your audio device. Just tap the Cast button.

Spotify Connect

Play Spotify through your audio device using the Spotify app as a remote.

Stream with Chromecast built-in

Stream music, podcasts and radio from 100+ audio apps, including Google Play Music and more.

Better sound quality

Just tap the Cast button to start streaming your favorite music directly from the cloud, for the best audio quality.

Save your battery

Chromecast built-in makes a direct connection to the streaming service, so your smartphone battery lasts much longer than it would over Bluetooth® connection.

Total listening freedom

Multitask without interruption. Play a game or take a call and the music will keep playing, even if you take your phone into another room.

Unite your music

Easy streaming control with the new SongPal app

The SongPal app allows you to easily and intuitively manage your listening experience. Simply install the SongPal app on selected smartphones to take control of music playback, device settings, and more - all through one app.

Listen to music in another room

Let the same great song follow you around the house with multi-room listening, controlled via the SongPal app . Use SongPal Link to group selected Sony soundbars and speakers together, then stream music from different music services, a smartphone, a PC, or your DLNA network in multiple rooms throughout your home .

Enhance all your entertainment

Whether you're watching your favorite movie, playing the latest game, or listening to a classic album, the HT-ST9 enhances audio for the ultimate immersive entertainment experience.

Level up your in-game audio

Created in conjunction with PlayStation game developers, this dedicated mode enhances every sound, shot, or explosion to put you at the heart of the action and deliver the ultimate gaming experience.

Football stadium atmosphere

Football Mode adjusts sound settings to enhance the natural, ambient noise at sporting events, so they're closer to an authentic stadium atmosphere.

Live arena sound

Enjoy arena-style audio in your living room. Our engineers have accurately reconstructed the sound field of the O2 London Arena, delivering a listening experience that takes you closer to live performance.

Designed to impress

Using only the highest quality materials, every element of the HT-ST9's design has been carefully considered. A sleek aluminum exterior houses seven carbon-fiber drivers and three coaxial speakers for a sound bar that combines rich audio with a premium finish.


  • 7.1 channel system for immersive surround sound
  • Cinematic S-Force PRO Front Surround
  • Dolby® TrueHD for sound as the director intended
  • DTS-HD for studio master precision
  • Multiple HDMI ports for simple connectivity
  • USB port for High-Resolution Audio playback
  • 4K pass through for 4K content
  • High-Resolution Audio for uncompromising sound
  • S-Master HX digital amplifier: utmost sonic purity
  • DSEE HX restores your music files
  • ClearAudio+ enriches your music
  • Coaxial speakers for full-range sound
  • Super tweeters for soaring highs
  • Carbon Fiber diaphragm for rigid speaker construction
  • Magnetic fluid speakers: high power, small size
  • Enjoy higher quality Bluetooth® streaming with LDAC
  • Bluetooth streaming for personal listening
  • One-touch listening to play instant music
  • Wireless streaming with Bluetooth
  • Built-in Wi-Fi® for simple streaming
  • Works with Google Home
  • The simple way to send music to your speakers
  • Unite your music with SongPal
  • Set your music free with Multi-room listening
  • Game Mode for immersive gaming
  • Football mode puts you pitch side
  • Digital Music Arena for a live music experience
Size & Weight
Main Unit Size - Body Only (W x H x D) (in) 44.49 x 3.46 x 5.24 in
Main Unit Weight - Body Only 15.7 lb
Subwoofer Size (W x H x D) (in) 9.80 x 15.87 x 16.77 in
Subwoofer Weight (lb) 35.27 lb
A / V Sync YES
Amplifier Channels 7.1ch
S-Force PRO Front Surround S-Force PRO Front Surround
LPCM (2CH / 5.1CH / 7.1CH) thru HDMI YES
Power Output (Total) 800 W
Subwoofer Type Wireless subwoofer
Speaker System Passive radiator
Subwoofer Driver 7.09 in cone
Input and Output Terminals Analog Audio In (Inc TV CEC), Bluetooth Reception, Bluetooth Transmission, Ethernet, USB-A
Analog Audio Inputs 1
HDMI Inputs 3
Optical Audio Inputs 1
Audio Formats
Dolby TrueHD/Dolby Digital+ YES / YES
USB File System (FAT32, NTFS) Yes (FAT32, NTFS, exFAT)
LPCM LPCM - 2 ch, LPCM - 5.1 ch, LPCM - 7.1 ch
PCM 96k/24 bit PCM
DTS HD Master Audio YES
Dolby Dolby® Digital, Dolby® Digital+, Dolby® Dual Mono, Dolby® TrueHD
Sound Function
Sound Mode ClearAudio+, Movie, Music, Soccer, Standard
Video Features
3D-capable HDMI Pass Thru YES
Deep Color YES
Wireless Features
Wi-Fi® Built in Yes (2.4 GHz/5 GHz) 11a/b/g/n
Power Consumption BAR: 60W, SW: 30W
Remote Commander RMT-AH111U

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Questions or Comments?
Call (802) 362-1045 for assistance. Click Here for Brook Valley Appliance location and contact information.

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