Skip to content
Bose Smart Soundbar 900

Bose Smart Soundbar 900

By Bose · Soundbars · Desk & Streaming Setup · More from Bose

  • 5.0.2-channel virtual surround with Dolby Atmos
  • HDMI eARC + Optical TOSLINK inputs
  • Wi-Fi, Bluetooth, AirPlay 2, Chromecast built-in, Spotify Connect
  • Alexa & Google Assistant built-in with noise-rejecting mic array
  • 41.14 x 4.21 x 2.29 inches, 12.68 lbs (5.75 kg)

Price not listed

New
Used, refurbished, open-box

Stores are listed in a fixed order, never by price or commission. Prices are snapshots. Check the current price with the store.

Summary

A single-bar Dolby Atmos speaker with nine drivers and upward-firing height units, built for people who watch a lot of TV and want dialogue that never needs subtitles. Before buying a used one, test the HDMI ARC/eARC handshake with your own television, because owners report audio that comes and goes.

Strengths

  • Dialogue stays clear and accurate through the discrete center channel, and independent reviewers single it out.
  • PhaseGuide and the upward-firing units give a wider, taller field than a conventional small TV speaker.
  • ADAPTiQ calibration measurably improves the result when the included headset is available.
  • AirPlay 2, Chromecast, Wi-Fi and Bluetooth cover more streaming routes than most rival bars.
  • Bose officially supports adding a bass module and a pair of rear speakers.
  • Setup is a single HDMI cable, then ADAPTiQ.

Weaknesses

  • Without a bass module there is little low-frequency impact, and independent reviewers both found the bar too polite for action films.
  • Standalone surround envelopment is virtual and thin compared with a bar plus real rear speakers.
  • There is no HDMI input, so every source has to go through the television.
  • Owners report intermittent HDMI ARC/eARC audio loss and wake-up failures with several television makes.
  • No automatic volume leveling, so you adjust levels yourself between programmes.
  • No DTS decoding support, which matters for some disc collections.

Verified specifications

Drivers9 total, including 2 upward-firing units.
Channelstreated as 5.1.2 virtual surround for testing; no physical subwoofer or rear speakers ship with it.
Dimensions41.1 × 4.2 × 2.3 in (approximately 1045 × 107 × 58 mm).
Weight12.68 lbs (5.75 kg).
Enclosuremetal grille with a glass top panel.
TV connection1 HDMI eARC/ARC audio connection and 1 optical audio input. There are no HDMI source inputs and no video passthrough.
CodecsDolby Atmos, Dolby Digital, Dolby Digital Plus and Dolby TrueHD. Optical cannot carry Atmos; HDMI ARC carries compressed Atmos as Dolby Digital Plus, while TrueHD and Dolby MAT Atmos need eARC.
Network and controlWi-Fi streaming with Apple AirPlay 2, Chromecast built-in and Spotify Connect, plus Bluetooth 4.2 per Bose’s exact-model specification.
Voice assistantsAlexa and Google Assistant built in, with a hardware mic mute.
Room calibrationADAPTiQ, using the included proprietary measurement headset and the Bose app.
PowerAC 100–240 V, 50/60 Hz. Standby is under 1 watt. There is no rechargeable bar battery.
In the boxsoundbar, remote with 2 AAA batteries, ADAPTiQ headset, HDMI cable, optical cable, power cord and quick-start guide.
Accessories supportedBose Bass Module 500 and 700, and Bose Surround Speakers or Surround Speakers 700.
Firmwareversion 15.0.40 dated April 7, 2026, listed by Bose as the latest for this model.
Full research notes and sources

Dialogue and sound quality

Speech is the reason to buy this bar. The center tweeter flanked by its woofers projects voices cleanly, and both RTINGS and Tom’s Guide heard speech come through clearly on difficult television and film material. A dialogue mode is available, but it is not the newer A.I. Dialogue Mode that came with the Smart Ultra Soundbar.

Width is the other strength. The PhaseGuide arrays throw side content off nearby walls, and Tom’s Guide found the spatial effects convincing, though the Sonos Arc produced stronger overhead movement in its comparison. Upfiring height is subtler. The standalone bar does not create discrete back-to-front surround, and reviewers heard limited envelopment behind the listener.

Owners also praise the streaming side: AirPlay 2 and Chromecast work without casting quirks, and the Bose Music app is described as steady in forum threads. Some owners report that the dialogue mode reverts to standard after a power cycle on certain firmware versions, so expect to check it after updates.

Bass and expansion

The bar alone rolls off early, and both independent tests found the deep thump missing from action sequences. A bass module fixes this, and Bose officially supports the Bass Module 500 and 700 with the 900.

Rear speakers are also officially supported, contrary to what some listings claim. Bose lists the Surround Speakers and Surround Speakers 700 as compatible, and RTINGS tested the 900 with satellites and a bass module. Adding both changes the cost picture sharply, so price the bar on its own before deciding on the full system.

HDMI, eARC and television setup

There is one HDMI connection and it is for the television’s audio return. Consoles and streaming boxes plug into the television, and the bar receives what the television sends back. Optical is the fallback for older sets, but it gives up Atmos and HDMI-CEC control.

Owners describe real problems here. A February 2024 owner with an LG C1 reported random audio loss that needed the unit unplugged. A June 2026 owner with an LG C5 and Apple TV 4K got no audio after powering everything on together. A July 2026 owner with a Sony Bravia and Apple TV reported erratic power-on and audio even after changing settings. These are anecdotes, not a measured failure rate, and some of it may come from the television’s CEC negotiation rather than the bar. Forum threads also report the television remote losing volume control after a firmware update, and the eARC port solder joints cracking after two or three years of frequent plugging and unplugging, which is a pattern in posts, not a recall.

Bose’s own remedy is a checklist: confirm you are on the TV’s ARC or eARC port, check CEC settings, reseat or swap the high-speed HDMI cable, check the television’s output format, and use the app’s HDMI Power and Audio settings, where Option 4 covers missing television-to-bar audio and Option 5 covers loss after reconnection. Rebooting the television, source and bar resets the handshake. Optical can restore basic audio at the cost of Atmos and CEC.

Accessories, running costs and repair

Ordinary use needs no subscription and no consumable schedule. Standby is under 1 watt, so idle energy is minor: at an illustrative 8,760 standby hours a year that is under 8.76 kWh, or under $1.75 a year at an assumed $0.20 per kWh. Active playback wattage and real yearly electricity cost were not reliably measured.

The remote takes 2 AAA batteries, and generic alkaline cells are fine. Bose’s Soundbar Wall Bracket, listed at $49 at Bose US in October 2026, is the one official mounting accessory for this model. Bose also lists the Bass Module 500 at $549 and the Bass Module 700 at $699 on sale against $899 regular, and the Surround Speakers at $399, with refurbished Surround Speakers 700 at $479 on Bose’s outlet page.

The enclosure is sealed and there are no user-serviceable parts. Bose does not publish replacement drivers, amplifiers or mainboards, and no verified fixed-price repair tariff for this model was found, so treat a unit bought without warranty as a one-way purchase. The ADAPTiQ headset is a single point of failure: lose it and there is no room correction. Its individual OEM replacement price is not confirmed, so ask Bose support. Owners also report white grilles yellowing near television vents after a year or more of use, and a small number of forum threads describe units failing during a firmware update and going back to Bose under warranty.

What to pay for a used or refurbished unit

The 900 was discontinued after 2023, so no stable new-unit list price exists; $899 was the original figure. Recent US asking prices ran about $399.99 for refurbished and used examples on eBay, $389–577 on the Sweetwater Gear Exchange price advisor, and $637.48 for a Porter Electronics refurbished unit that ships with only the bar, power cord and remote under its own 90-day exchange warranty. Bose’s own refurbished page shows $599 but is notify-only.

Use those numbers as anchors, not rules. A complete, demonstrably working unit at $350 or less is attractive. Between $351 and $450 is fair if the television’s eARC, the remote, Wi-Fi and the ADAPTiQ headset are all proven. Above $550, favor a newer product: Bose’s 2024 Smart Soundbar was listed at $399 on sale against $549 regular, and the Sonos Beam (Gen 2) at $499. Both are different machines with their own trade-offs. Bose’s US limited warranty is one year from original retail purchase, and Bose-certified refurbished units bought direct from Bose carry the same one-year warranty plus a 30-day return; those terms do not automatically apply to third-party used listings.

Which model this is

This page covers the Smart Soundbar 900 sold from 2021 to 2023, in black and white, with the black retail model listed as 863350-1100.

The listing this page follows is ASIN B094YNCPLL.

Don’t confuse it with the Smart Ultra Soundbar that replaced it in September 2023, or the smaller 2024 Smart Soundbar.

Sources

Manufacturer:

Independent reviews:

Owner reports:

Buying guides for this category

Compare with

See also

Related products