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Denon DHT-S217 Powered 2.1-channel sound bar with Dolby Atmos® and Bluetooth®

Item # 033DHTS217

This standalone bar is easy to use and delivers full-range sound with support for Dolby Atmos.

This standalone bar is easy to use and delivers full-range sound with support for Dolby Atmos.

Item # 033DHTS217

In stock

About the Denon DHT-S217

Colin M.

Compact design, big sound

The DHT-S217 helps add some much needed "oomph" to your TV sound, with powerful audio that supports a virtual version of the immersive Dolby Atmos format. Its slim design also makes it easy to fit under most TVs, so you can snag spacious home theatre sound without a bulky system taking up shelf (or floor) space.
Denon DHT-S217 2-channel Dolby Atmos sound bar

The Denon DHT-S217 offers up impactful Dolby Atmos sound from a slender bar.

Compact design, big sound

The DHT-S217 helps add some much needed "oomph" to your TV sound, with powerful audio that supports a virtual version of the immersive Dolby Atmos format. Its slim design also makes it easy to fit under most TVs, so you can snag spacious home theatre sound without a bulky system taking up shelf (or floor) space.

Built-in subwoofers

There are two 3" subwoofers hidden in the bottom of the bar. These down-firing woofers deliver enough low-end impact that you might not need a separate subwoofer. For the bass fanatics out there, the bar has a subwoofer output to let you expand your system.

Easy music streaming

You can play your favourite tunes straight from your smartphone or tablet using the bar's built-in Bluetooth. There's also an auxiliary audio input if you want to plug in and pass audio to the bar the old-fashioned way. 

4K and HDR pass-through

The HDMI connections on the bar allow 4K and HDR (High Dynamic Range) video passthrough, including Dolby Vision. This makes sure you're maintaining the high-contrast Ultra HD signal from a connected Blu-ray player or gaming console all the way to your TV.

Simple setup and control

You'll only need the one cable to connect up to your TV, with your choice of HDMI or optical (both included in the box). Pop that in and plug into your AC and you're ready to rock. You can control the sound bar with the included remote or your TV remote (the bar can learn the IR codes of most TV manufacturers).

If your remotes surreptitiously find themselves lost in the cushions of your couch, never fear — there are controls on top of the sound bar itself too.


Product highlights:

  • slim 2.1-channel sound bar with integrated subwoofers for impactful bass
  • supports Dolby Atmos for virtual surround sound
  • built-in decoding for Dolby® Digital, Dolby TrueHD, Dolby Digital Plus
  • built-in Bluetooth lets you stream music directly from your phone
  • six drivers powered by a built-in amplifier
    • two 3-1/2" x 1-5/8" mid-range drivers
    • two 1" dome tweeters
    • two down-firing 3" woofers
  • four sound modes: movie, night, music, and pure
    • pure mode removes sound processing and other adjustments for unfiltered listening
  • Denon Dialog Enhancer boosts vocal clarity without changing overall volume
  • 1 HDMI input, 1 HDMI output (cable included)
    • supports Enhanced Audio Return Channel (eARC)
    • supports 4K/HDR pass-through
  • optical digital audio input (cable included)
  • 3.5mm minijack input
  • mono-RCA subwoofer output
General Info:
  • wall-mountable with rear keyhole slots
  • includes remote control
  • can learn the IR codes used by several major TV manufacturers (e.g. Sony, LG, Samsung), allowing you to control the sound bar with your TV remote
  • dimensions (measured by Crutchfield): 35-1/16"W x 2-5/8"H x 4-3/4"D
  • weight: 7.94 lbs.
  • warranty: 2 years
  • MFR # DHTS217BKE3

No A/V receiver required.

What's in the box:

  • Active soundbar speaker
  • 58" AC power cord
  • Remote control (RC-1251)
  • Two "AAA" batteries
  • 58" HDMI cable
  • 6' Optical digital cable
  • 2 Wall-mount spacers
  • Quick Start Guide
  • Safety Instructions
  • Warranty Sheet
  • Wall-Mount Template
  • "Caution on Using Batteries" note

Customer reviews for Denon DHT-S217

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4.5 out of 5 stars
36 reviews

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More details on the Denon DHT-S217

Stacey B.

Features & specs

Design Bar
Amplification Self-powered
Separate Subwoofer No
Wireless Surrounds No
Number Of Channels 2.1
Surround Formats
Dolby Digital Yes
Dolby Atmos Yes
Audio Enhancements
Dialogue Enhancement Yes
Auto Volume No
Night Mode Yes
Virtual Surround Movie Mode
Auto Calibration No
Audio Connections
Optical Digital Inputs 1
Coaxial Digital Inputs None
HDMI ARC Input Yes
HDMI eARC Input Yes
3.5mm Stereo Analog Inputs 1
RCA Stereo Analog Inputs None
USB Type-A Input No
Subwoofer Output Mono-RCA
Audio Specs
Tweeter 1" Dome (2)
Midrange 3.5" x 1.6" Cone (2)
Woofer 3" Cone (2)
Subwoofer Driver None
Enclosure Ported
System Frequency Response Not Given
Sound Bar RMS Power Not given
Subwoofer RMS Power N/A
Video Connections
HDMI Inputs 1
HDMI Outputs 1
Video Specs
HDMI Version 2.0b
HDMI Video Pass-through Resolution 4K
HDR Video Compatible Yes
Includes Remote Yes
Voice Control No
Control by App N/A
Remote IR Passthrough No
Learns TV Remote Yes
Audio Streaming
Bluetooth Connectivity Built-in 5.0
Bluetooth Audio Playback Yes
Bluetooth Transmitter Mode No
Online Music Sources None
Apple AirPlay No
Chromecast built-in No
Amazon Music No
Apple Music No
Pandora No
SiriusXM No
Spotify No
TuneIn No
YouTube Music No
Files on Your Network No
Wi-Fi Networking
Built-in Wi-Fi Version None
Bands N/A
Other Info
Wall-mountable Yes
Mounting Bracket Included No
Sound Bar Size (inches) 2-5/8H x35-1/16W x 4-3/4D
Sound Bar Weight 7.94 lbs
Subwoofer Size (inches) No Subwoofer
Subwoofer Weight N/A
Speaker Parts Warranty 2 Years
Speaker Labor Warranty 2 Years
Amplifier Parts Warranty 2 Years
Amplifier Labor Warranty 2 Years

Product Research


Active Soundbar Speaker: The Denon DHT-S217 active soundbar speaker features a 2.1ch configuration with two front-firing 1" dome tweeters, two front-firing 3.5" x 1.6" midrange drivers, and dual down-firing 3" cone subwoofers. The DHT-S217 delivers a full-range 2.1ch audio experience that will fill your room with crystal-clear highs, accurate midrange, and deep bass. You can adjust the DHT-S217's built-in subwoofer level independently from the soundbar's overall volume level.

Dolby Atmos: Dolby Atmos creates powerful, immersive audio with sound that comes from all directions (including overhead) to fill your home cinema with astonishing clarity, richness, detail, and depth. Dolby Atmos brings to life a movie's soundtrack with sound that flows all around you in three-dimensional space to completely immerse you in the action, heightening your cinematic experience. The Denon DHT-S217 delivers a virtual 2.1ch Dolby Atmos surround sound experience from a one-piece soundbar system.

  • The Denon DHT-S217 also supports Dolby Digital, Dolby Digital Plus, and Dolby TrueHD.
  • The Denon DHT-S217 does not support DTS, DTS-HD, or DTS:X.

Note: The Denon DHT-S217 soundbar is only 2.1 channels and lacks any dedicated center, surround or height channels. When in "Movie" mode, your movie soundtrack's center, surround, and overhead effect channels are mixed with the soundbar's left and right channels to create a matrixed 3D soundfield for Dolby Atmos and other compatible Dolby Digital multichannel audio formats.

Sound Adjustments: The Denon DHT-S217 offers three preset Sound Modes, a Dialog Enhancer mode, and a Pure Mode to tailor the system's sound to your preference and application.

  • Sound Modes: With three different Sound Modes (Movie, Music, and Night), you can choose the perfect mode for content and occasion. The Movie mode lets you enjoy "theater-like" surround sound, while Music mode lets you enjoy a broad stereo soundstage for your music. Night mode compresses the dynamic range to make audio easier to hear at low volumes.
  • Dialog Enhancer: There is also a Dialog Enhancer feature that improves dialog intelligibility without having to adjust the soundbar system's overall volume level; ideal for movies and TV shows. You can set the Dialog Enhancer to Low, Medium or High. It can be used along with any of the Sound Modes.
  • Pure Mode: In addition, you can utilize the soundbar's Pure Mode to eliminate surround processing and remove any adjusted characteristics associated with Movie, Music, or Night modes, plus the dialog enhancer for a pure music listening experience.

HDMI 2.0b: Equipped with one HDMI input and one HDMI eARC output, the Denon DHT-S217 incorporates an advanced video section that features the HDMI 2.0b specification; including support for 4K/60 Hz Ultra-HD video with HDCP 2.2 compatibility (a requirement for 4K Ultra HD copy-protected content), HDR (High Dynamic Range), and eARC (Enhanced Audio Return Channel).

  • 4K/60Hz + HDCP 2.2: The Denon DHT-S217 supports up to 4K (3840x2160 pixels) video @ 60 frames per second on all of its HDMI inputs and output. It will also pass a 480i, 480p, 720p, 1080i, or 1080p video signals via HDMI. There is no video resolution upscaling. Both of the soundbar's HDMI jacks support HDCP 2.2, which fully complies with the latest copyright protection standard for 4K video transmission.
  • HDR (High Dynamic Range): The DHT-S217 supports High Dynamic Range video - including HDR10 and Dolby Vision. High Dynamic Range video provides enhanced picture quality by simultaneously enabling greater detail for both the dark and bright parts of an image. HDR reproduces a greater dynamic range of luminosity or brightness levels, creating greater contrast. This increased contrast reveals the subtle nuances of the image, from detailed blacks and shadows to the brightest whites and colors, plus greater depth.
  • eARC (Audio Return Channel): The soundbar's HDMI output supports eARC, which allows the audio to be sent from your compatible TV to the soundbar system through the same HDMI cable already being used to send audio and video to your TV. This eliminates the need for extra cables connected to your television. eARC offers support for uncompressed audio formats like Dolby TrueHD and Dolby Atmos - where standard ARC was limited to Dolby Digital, Dolby Digital Plus, and DTS. Your TV will also need to support eARC or ARC for this feature to work. Some newer TVs will support eARC, but most older TVs only support ARC.

Digital & Analog Inputs: In addition to HDMI connectivity, the Denon DHT-S217 is outfitted with an optical (toslink) digital input and analog stereo minijack (3.5mm) audio inputs.

  • Optical (Toslink): For TVs without ARC or eARC via HDMI, you can connect the Denon DHT-S217 via its optical (toslink) digital input. These digital input support 2ch PCM and 5.1ch Dolby Digital (not compatible with DTS).
  • Stereo Minijack (3.5mm): Additionally, Denon has included a stereo analog minijack (3.5mm) input jack that lets you connect the DHT-S217 to your TV without ARC/eARC or a digital output. This connection only supports 2ch PCM.
Note: The digital optical output of some flat-panel TVs only send an audio signal in 5.1ch when receiving Dolby Digital/DTS surround sound from the TV's built-in tuner, network connection, or connected USB device; and will output only 2ch stereo from sources connected to the TV via HDMI, or RCA (like your Blue-ray/DVD player or satellite/cable box).

Bluetooth Audio Streaming: The Denon DHT-S217 features built-in Bluetooth 5.0 with support for wireless audio streaming (A2DP 1.3). You'll be able to wirelessly streaming stored music, music apps, and other audio content on your Bluetooth-enabled smartphone, tablet, laptop, or desktop computer to the soundbar system. You will still control playback and view song/artist/album information from your Bluetooth source device. You can pair multiple devices with the Denon soundbar system, but only one device can be connected and used for playback at a time. The system has a Bluetooth wireless range of 32.8'.

Note: The DHT-S217 does not support Bluetooth hands-free communication for making and answering phone calls.

Mono-Sub Output: The Denon DHT-S217 active sound features a mono-RCA sub output for adding a powered subwoofer (sold separately - see Accessories Tab). The mono-RCA sub out does not feature a low-pass crossover. Make sure your powered subwoofer has its own variable low-pass crossover setting. The DHT-S217 soundbar's built-in subwoofers will continue to play even after the connection of a powered sub.

Remote Control: The included IR remote control provides wireless operation of the Denon DHT-S217 soundbar system. The DHT-S217 can also be programmed to work with your television's IR remote control and also supports HDMI CEC.

  • TV Control: Thanks to preset IR codes and IR remote learning capability, you can operate the volume level of your Denon DHT-S217 with your TV's IR remote control. Compatible TVs include Samsung, LG, Sony, and Vizio.
  • HDMI Control: You can switch off the power, switch input source and adjust the volume of this system using your TV's remote control over an HDMI connection. Your TV also needs to be compatible with the HDMI control function. This function may not operate due to connected devices or settings.

Mounting Options: The active soundbar speaker of the DHT-S217 can be table-top mounted or wall mounted. There are built-in keyhole slots on the back of the soundbar to wall-mount the speaker. The soundbar speaker should be centered left-to-right with the screen, and ideally no more than a few inches above or below.

Power Requirements: The Denon DHT-S217 active soundbar speaker will need to be plugged into an AC wall outlet or surge protector (sold separately). It comes with a detachable 58" AC power cord.

Note: When the Auto Standby function is turn on, the active soundbar speaker will automatically go into Standby Mode if there is not audio signal or not operation for approximately 20 minutes.

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Customer Q&A

5 questions already asked

Is this sound bar compatible with TCL television?
diane  Mar 26, 2023
1 answer
Possibly, Diane. You have a few connection options with the Denon DHT-S217 Sound bar and you would need to confirm that you have those connections (or at least one) on your specific TCL television. HDMI with ARC is supported, digital toslink, and 3.5mm analog can be used if present on your TV. The Denon even comes with an HDMI and optical toslink cable included, so it can connect easily to most TV's!
bo  Mar 26, 2023 (Staff)
Can the sound bar or any with two HDMI inputs be connected by a switch to serve independently directly to tv and independently as a center speaker for a denon 2500h for music ( not tv ?) Would only use one function at a time.
bruce s  Jan 08, 2023
1 answer
This soundbar, and most soundbars on the market, cannot be used as a center speaker for a home theater system. Powered soundbars are intended to be used as standalone systems in place of having a home theater system.
zachary  Jan 08, 2023 (Staff)
Is there a light or some other indicator on the FRONT of the unit that shows when it's powered on?
gary  Sep 27, 2022
1 answer
Greetings Gary, and thankyou for your question. There are 5 LED status lights on the front of the bar. Page 6 of the manual explains what each light means. The manual is downloadable from the Denon sound bar page on our website.
hogan  Sep 27, 2022 (Staff)
Is the front of the soundbar covered with fabric or metal/plastic?
soundman  Jul 29, 2022
1 answer
Greetings SoundMan, and thank you for your question. The Denon DHT-S217 has a gray cloth grille.
hogan  Jul 29, 2022 (Staff)

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