TV and audio / Soundbars
JBLSoundbar
Bar 300MK2
Released June 2025.4Press releasenews.harman.com/releases/jbl-introduces-next-gen-bar-series-for-truly-immersive-entertainmentRead 8 October 2026US maker release dated June 9, 2025 explicitly states June 2025 availability for Bar 300MK2. The marketed month is approximate, not an exact first delivery date for this item. Current US exact item is in stock. Last checked 16 October 2026.
- System channel configuration
- 5.0
- Dolby Atmos
- Yes
- Separate subwoofer included
- No
- HDMI eARC
- Yes
68 of 98 fields known.
At a glance
Ports
- 2 HDMI
- Optical
- USB-A
- AC power
Audio system
- Physical drivers in the bar
- 93Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026
- Driver layout
Component Driver type Count Diameter (mm) Soundbar Racetrack driver (42 x 80 mm) 5 Not available Soundbar Tweeter 4 20 - Included subwoofer connection
- Not available
- Included subwoofer driver diameter
- Not available
- Included rear speaker connection
- Not available
- Detachable rear speakers
- No3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026
- Compatible optional subwoofers
- Not available
- Compatible optional rear speakers
- JBL Cove M1, JBL Cove P15Maker product pagesupport.jbl.com/howto/bar-300mk2-bar-500mk2-software-update-release-notes-me8zilyp8q7-us/000052493.htmlRead 8 October 2026Exact 300MK2/500MK2 US release notes name multi-channel grouping with Cove speakers in firmware 26.33.11.82.00, August 19, 2026. The separate exact-applicability FAQ names models and same-model pair requirement. This later optional expansion does not alter supplied package counts.6Maker product pagesupport.jbl.com/gb/en/howto/which-cove-speaker-models-are-compatible-with-jbl-bar-mk2-series-to-form-home-theater-groups-mttxsft6e8-emea/000055042.htmlRead 8 October 2026Current maker FAQ explicitly includes Bar 300MK2 and requires a pair of either two Cove M1 or two Cove P1 speakers for home theater grouping. US exact-family firmware release corroborates availability of this software feature. Speakers are optional, not supplied. Other Cove models and subwoofer compatibility are not inferred.
- Published frequency response lower limit
- 50Hz3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026Printed page 18 states 50 Hz to 20 kHz at -6 dB. Signal, room, volume and measurement setup are not published. These are maker endpoints, not reviewer extension results.
- Published frequency response upper limit
- 20kHz3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026Printed page 18 states the upper response endpoint of 20 kHz at -6 dB. This is not Bluetooth transmitter frequency or a measured extension.
Audio formats
- Supported audio formats
- Dolby Atmos, Dolby Digital3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026Sections 5.1 and 6.2 explicitly describe Dolby Atmos playback and Dolby Digital decoding/upmixing. This is a partial proved decoder list. DTS Virtual:X processing or the DTS:X trademark paragraph does not prove DTS:X decoding.
- Max wired audio sample rate
- Not available
- Max wired audio bit depth
- Not available
- Max music file bit depth
- Not available
Connectivity
- Ports on the bar
Connector Count Role HDMI 1 Source audio/video input HDMI 1 TV video output and ARC/eARC audio input Optical 1 Digital audio input USB-A 1 US MP3 storage playback and service AC power 1 AC power input - Video passthrough modes
- Not available
- HDR passthrough formats
- HDR10+, Dolby Vision3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026Printed page 18 explicitly lists HDR10+ and Dolby Vision. Plain HDR10 or game passthrough features are not added by inference.
- VRR passthrough
- Not available
- ALLM passthrough
- Not available
- Bluetooth audio input
- Yes3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026
- Bluetooth audio codecs
- Not available
- Wi-Fi standard
- 802.11a/b/g/n/ac/ax3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026Printed page 18 explicitly lists IEEE 802.11 a/b/g/n/ac/ax. Not inferred from frequency bands.
- Built-in Ethernet speed
- Not available
Streaming and control
- Streaming protocols
- AirPlay 2, Google Cast, Spotify Connect, Tidal Connect, Roon Ready3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026Printed pages 10-16 describe Google Cast, AirPlay and Spotify Connect and group playback. Exact US launch and current page independently add AirPlay 2, Tidal Connect and Roon Ready. Availability can require subscriptions and varies by service and market.4Press releasenews.harman.com/releases/jbl-introduces-next-gen-bar-series-for-truly-immersive-entertainmentRead 8 October 2026Exact Bar 300MK2 column explicitly lists AirPlay 2, Google Cast, Roon Ready, Spotify Connect and Tidal Connect. SmartThings is control, not an added music protocol. DTS Virtual:X launch forecast was late 2025, superseded by the exact dated firmware notes.
- Voice assistants
- Google Assistant, Siri1Maker product pagejbl.com/JBLBAR300M2BLKAM.htmlRead 8 October 2026Works with voice assistant-enabled speakers explicitly names Google Assistant and Siri. Requires an external voice-capable device. The built-in microphone is for calibration, not an onboard assistant.
- Microphone mute control
- Not available
- Companion apps
- JBL One3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026
- Companion app platforms
- Android, iOS3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026Printed page 11 specifically instructs Android and iOS users to install JBL One. Other host platforms are unproved.
- Multiroom audio
- Yes3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026Printed page 16 explicitly documents synchronized Google Cast groups and multiple selected AirPlay speakers on the same home network. Optional rear expansion is separate.5Maker product pagesupport.jbl.com/howto/bar-300mk2-bar-500mk2-software-update-release-notes-me8zilyp8q7-us/000052493.htmlRead 8 October 2026August 19, 2026 firmware explicitly adds JBL Whole-Home Audio synchronized playback. Auracast is also announced, but its direction and codec are not specified and it is not relabeled a Wi-Fi protocol. July 15, 2025 firmware explicitly adds DTS Virtual:X, superseding the launch forecast. No DTS:X decoder is inferred.
Sound processing
- Sound modes
- Not available
- Room calibration system
- Sound calibration3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026Printed section 6.2.1 is named Sound calibration. MultiBeam 3.0 is surround processing, not substituted as a separately named calibration engine.
- Equalizer controls
- 7-band EQ in JBL One, Five bass levels3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026Printed pages 7 and 13 give five bass levels, default 3. Seven-band app EQ is explicitly established by the maker launch, not guessed from an app screenshot.4Press releasenews.harman.com/releases/jbl-introduces-next-gen-bar-series-for-truly-immersive-entertainmentRead 8 October 2026Release explicitly states seven-band EQ for every named new Bar model, including Bar 300MK2. Manual separately proves the five bass levels.
- TV speaker integration
- Not available
Power
- Published operating power
- Not available
- Published standby power
- 1W1Maker product pagejbl.com/JBLBAR300M2BLKAM.htmlRead 8 October 2026Deep sleep feature states less than 1 W. Stored 1 is the strict upper bound, not an exact measured draw. Networked standby is separate.
- Power supply
- Internal power supply, 100-240 V AC, 50/60 Hz3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026Printed pages 2, 6 and 18: supplied AC cord connects directly to the bar, rated 100-240 V AC, 50/60 Hz. No external adapter or output-wattage-to-input conversion is used.
- Detachable rear battery life
- Not available
- Detachable rear charge time
- Not available
Measured
We could not find any of these 8 fields. Show them
- Low-frequency extension (measured)
- Not available
- High-frequency extension (measured)
- Not available
- Max sound pressure (measured)
- Not available
- Frequency response deviation (measured)
- Not available
- Measured latency
- Not available
- Operating power (measured)
- Not available
- Standby power (measured)
- Not available
- Soundbar weight (measured)
- Not available
Dimensions and weight
Front and side, drawn to scale.
- Soundbar dimensions
- Width940Height50.5Depth104mm(37 × 2 × 4.1 in)3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026Printed page 18 gives bare bar W x H x D directly in mm: 940 x 50.5 x 104. Brackets, cables and shipping packaging are excluded. Rounded inch figures are not converted over these metric values.
- Component dimensions and weight
Component Width (mm) Height (mm) Depth (mm) Weight (g) Soundbar 940 50.5 104 2,900 - Package dimensions
- Width1,180Height120Depth160mm(46.5 × 4.7 × 6.3 in)3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026Printed page 18 explicitly labels packaging W x H x D as 1180 x 120 x 160 mm.
In the box
- In the box
- JBL Bar 300MK2 soundbar, Remote control with two AAA batteries, Power cord, 1.2 m HDMI cable, Two L-shaped wall-mount brackets and mounting hardware, Quick start guide, Safety instructions and warranty card, Wall-mounting template1Maker product pagejbl.com/JBLBAR300M2BLKAM.htmlRead 8 October 2026Current exact US maker box list explicitly names quick start guide, safety instructions and warranty card, and wall-mount template. Power cords are published as up to four depending on region, so no regional cord count is inferred.3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026Printed page 5 complete inventory. Two AAA cells, one 1.2 m HDMI cable, two wall brackets with hardware and product information/template are supplied. Power-cord count and plugs vary by regional package, so no up-to-four global count is asserted for US. Optional Cove speakers are not supplied.
- Wall mount hardware included
- Yes3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026Printed page 5 kit and page 8 installation include bar brackets and mounting hardware. This is more than loose screws.
General
- Model numbers
- JBLBAR300M2BLKAM1Maker product pagejbl.com/JBLBAR300M2BLKAM.htmlRead 8 October 2026Current US page item number is JBLBAR300M2BLKAM, Black, offered in stock. This is the standalone 300MK2 package. Original Bar 300, Bar 500MK2 and optional speaker packages are excluded.
- Predecessor
- Not available
- Successor
- Not available
- Launch price (EU)
- Not available
Links
- Product page
- www.jbl.com/JBLBAR300M2BLKAM.html1Maker product pagejbl.com/JBLBAR300M2BLKAM.htmlRead 8 October 2026
- Spec sheet
- www.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw57f29c81/pdfs/JBL_BAR_300MK2_Black_Specsheet_EN.pdf2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw57f29c81/pdfs/JBL_BAR_300MK2_Black_Specsheet_EN.pdfRead 8 October 2026Original two-page English JBL Bar 300MK2 datasheet, linked by the exact US maker page. Its nine-driver inventory, geometry and explicit RMS footnote agree with the original owner manual. Regional USB exception is stated.
- Manual
- www.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdf3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw2ac4f39c/pdfs/HA_JBL_Bar%20300MK2_OM_Global_EN_V7.pdfRead 8 October 2026Original 23-page owner manual, printed pages 2-22, document HA_JBL_Bar 300MK2_OM_Global_EN_V7. All pages read. Americas back panel and US-only MP3 playback are distinguished from service-only USB in other regions.
- EPREL registration number
- Not available
Warranty
- Manufacturer warranty (source market)
- 1year9Maker product pagesupport.jbl.com/howto/jbl-warranty-information-us/000028546.htmlRead 8 October 2026US powered Home Audio warranty is one year from delivery for authorized-US-reseller purchase and US use, unless the supplied warranty card states another term. Five-year passive-speaker term and Australian statutory coverage are not applied.
Compare with
Pick a soundbar to see both side by side. Differences are marked yellow.
Sources
We read 10 sources for this soundbar. The numbers match the markers in the sheet.
- Maker product pagejbl.com/JBLBAR300M2BLKAM.html
- Maker product pagesupport.jbl.com/howto/jbl-warranty-information-us/000028546.html
- Retailer pagevisions.ca/jbl-bar-300-mk2-black-jblbar300m2blkam
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