Head-to-head

Bose Smart Soundbar vs JBL Bar 300 MK2: Bose needs less width, JBL clears lower screens and adds a source socket

The short answer

Choose Bose Smart Soundbar for a narrower cabinet with upward-firing drivers. JBL 300 MK2 suits a low TV stand and a setup needing one HDMI source input.

Before you choose

The reasoning and the trade-offs

Check the real width under the TV

892079-1100 (2024) measures 27.34 inches across the central bar, compared with 37 inches for Bar 300MK2. The gap is 9.66 inches before any docked rear speakers.

What this is based on

Absolute cabinet width difference = |27.34 - 37|. Allow additional space for cables, TV legs and acoustic clearance. A detached central bar measurement does not include removable rear speakers.

Main trade-off

Bose Smart Soundbar

No ADAPTiQ room calibration.

Main trade-off

JBL Bar 300 MK2

No external subwoofer or rear speakers are included.

Bose Smart Soundbar

Bose Smart Soundbar

Choose it for
  • Fit a narrow TV cabinet
  • Want upward-firing drivers without a separate subwoofer
Main trade-off
No ADAPTiQ room calibration.
See price & reviews on Amazon
JBL Bar 300 MK2

JBL Bar 300 MK2

Choose it for
  • Need a lower bar beneath the screen
  • Connect a player directly to the soundbar
Main trade-off
No external subwoofer or rear speakers are included.
See price & reviews on Amazon

Analysis updated , Catalog updated , Amazon.com / United States

About this comparison

Choose Bose Smart Soundbar for a narrower cabinet with upward-firing drivers. JBL 300 MK2 suits a low TV stand and a setup needing one HDMI source input.

Bose saves horizontal space

Winner by situation

Start with what you need it to do

  • Fit a narrow TV cabinet

    Its 27.34-inch cabinet is much narrower than the 37-inch JBL. That helps with TV legs or a small stand, while leaving room above the upward-firing drivers.

    Bose Smart Soundbar
    Better fit
    JBL Bar 300 MK2
    Depends
  • Need a lower bar beneath the screen

    The 2-inch-high JBL can work under a lower screen. Its extra HDMI input is useful when the TV alone does not provide enough source connections.

    Bose Smart Soundbar
    Depends
    JBL Bar 300 MK2
    Better fit
  • Check the complete setup

    Compare the single-bar setup first. An optional expansion path does not mean the extra speakers are included in the Amazon listing.

    Bose Smart Soundbar
    Depends
    JBL Bar 300 MK2
    Depends
  • Bose saves nearly ten inches of width, JBL saves height

    Bose is 9.66 inches narrower but 0.21 inches taller than JBL 300 MK2.

    Bose Smart Soundbar
    Depends
    JBL Bar 300 MK2
    Depends

What matters in practice

The differences that matter

Check the real width under the TV

892079-1100 (2024) measures 27.34 inches across the central bar, compared with 37 inches for Bar 300MK2. The gap is 9.66 inches before any docked rear speakers.

How we reached this conclusion

Absolute cabinet width difference = |27.34 - 37|. Allow additional space for cables, TV legs and acoustic clearance. A detached central bar measurement does not include removable rear speakers.

Count the source connections before adding a switch

892079-1100 (2024) accepts 0 direct HDMI sources, while Bar 300MK2 accepts 1. Other players need suitable TV inputs or a separately chosen switch.

How we reached this conclusion

Count HDMI source inputs only, excluding the HDMI output/eARC TV connection. Inputs recorded: 0 and 1. TV passthrough and supported video modes still need checking.

Bose saves nearly ten inches of width, JBL saves height

Bose is 9.66 inches narrower but 0.21 inches taller than JBL 300 MK2.

How we reached this conclusion

37 - 27.34 = 9.66 inches. 2.21 - 2 = 0.21 inches. Both selected listings are soundbar-only packages.

Try your real numbers

Will the soundbar fit under your TV?

Measure the clear space in front of your TV. Count devices you want to plug into the soundbar, not devices already connected to the TV. The numbers below are examples until you enter yours.

Bose Smart Soundbar

Does not meet these checks

0 separate HDMI source inputs cannot take the 1 device you want to connect to the bar.

JBL Bar 300 MK2

Meets these checks

37 inches wide and 2 inches high, with 1 separate HDMI source input. It leaves 11.0 inches of total spare width.

Use an open top surface, not an enclosed cubby. Detachable speakers are counted in the docked width. Allow extra depth for cables and the TV stand. This checks physical dimensions and port counts, not Dolby Atmos, 4K/120Hz passthrough or your TV’s audio-format support.

Choice A
Bose Smart Soundbar

Bose, 892079-1100 (2024)

Bose Smart Soundbar

The 2024 Smart Soundbar combines a cabinet under 28 inches wide with upward-firing speakers and Wi-Fi music. It is easier to place than the Smart Ultra, although it leaves out the Ultra room-calibration system.

Best matched use
A small, low TV stand with real upward-firing speakers

Checked facts

  • Cabinet measures 27.34 × 2.21 × 4.09 inches.
  • Five speaker units include two upward-firing speakers.
  • HDMI eARC and optical TV connections.
  • Wi-Fi music, Bluetooth and dialogue enhancement are supported.
  • This listing is the 2024 Smart Soundbar, not the older Smart Soundbar 600.
Choice B
JBL Bar 300 MK2

JBL, Bar 300MK2

JBL Bar 300 MK2

The Bar 300 MK2 keeps the low cabinet and Wi-Fi features of the 500 MK2 without a separate subwoofer. It also accepts one HDMI source directly, which is useful if the TV is already short of ports. Optional surrounds require current firmware and two Cove M1 or two Cove P1 speakers, bought separately.

Best matched use
A low-profile single bar that adds one HDMI source input

Checked facts

  • 5.0-channel single-bar package.
  • Cabinet measures 37 × 2 × 4.1 inches.
  • One HDMI source input and one eARC TV connection.
  • Five racetrack drivers and four tweeters form the driver array.
  • Wi-Fi streaming, PureVoice 2.0 and sound calibration are supported.
  • Firmware 26.33.11.82.00, released August 19, 2026, adds Cove grouping. Optional expansion requires two Cove M1 or two Cove P1 speakers and JBL One setup. The speakers are sold separately.

Meaningful differences

What changes the fit

Meaningful differences between Bose Smart Soundbar and JBL Bar 300 MK2
What changesBose Smart SoundbarJBL Bar 300 MK2Why it matters
Central bar width27.34 in37 inDetachable rear speakers can add width when docked.
Bar height2.21 in2 inMeasure the space below the screen and the infrared receiver.
HDMI source inputs01The TV eARC connection is separate from these source inputs.
Separate subwoofer includedNoNoA built-in bass driver is not the same as an included separate subwoofer.
Rear speakers includedNoNoCheck mains power or charging needs for the included rear speakers.
Upward-firing driversYesNoThese need a suitable ceiling and a clear upward path.
Wi-Fi musicYesYesBluetooth playback and Wi-Fi streaming are different connection paths.

What you give up

Every choice has a cost

If you choose Bose Smart Soundbar

  • No separate HDMI source inputs.

If you choose JBL Bar 300 MK2

  • Atmos height is virtual rather than produced by upward-firing drivers.

What matters in practice

How to make the call

01

Bose saves horizontal space

Its 27.34-inch cabinet is much narrower than the 37-inch JBL. That helps with TV legs or a small stand, while leaving room above the upward-firing drivers.

02

JBL uses more width but less height

The 2-inch-high JBL can work under a lower screen. Its extra HDMI input is useful when the TV alone does not provide enough source connections.

03

Neither selected package includes a separate subwoofer

Compare the single-bar setup first. An optional expansion path does not mean the extra speakers are included in the Amazon listing.

Check these before buying

  • Confirm the exact model and included package on Amazon before ordering.
  • Compare the single-bar setup first. An optional expansion path does not mean the extra speakers are included in the Amazon listing.

What this comparison cannot tell you

  • These conclusions use published specifications and the stated calculations. They are not a hands-on performance test.

What the facts say

What the comparison shows

Useful conclusions from the current soundbars comparison, followed by the checked facts used to reach them.

Compared set

All 31 models remain in view on this guide. The answer comes from the facts and trade-offs shown on the page.

31 matching models from 31 checked
See the checked facts and calculation notes
Compared set
31 models
Source records
7 for the products shown
Catalog updated

Match countNo matcher need is preselected here. Open the matcher to add the needs that apply to your home, room or setup.

Facts and source records used for the products in this recommendation
ProductNeeds matchedChecked factsSource records
Bose Smart SoundbarNo positive match recorded for these needs
  • Cabinet measures 27.34 × 2.21 × 4.09 inches.
  • Five speaker units include two upward-firing speakers.
  • HDMI eARC and optical TV connections.
JBL Bar 300 MK2No positive match recorded for these needs
  • 5.0-channel single-bar package.
  • Cabinet measures 37 × 2 × 4.1 inches.
  • One HDMI source input and one eARC TV connection.
  • Bar 300 MK2 US specifications: JBL (product specification)
  • JBL Bar 300 MK2 US Amazon listing: Amazon.com (product listing)
  • Bar 300MK2 and 500MK2 firmware history: JBL (product specification)
  • Cove speaker compatibility with Bar MK2: JBL (product specification)
  • JBL US whole-home and soundbar grouping: JBL (product specification)

Ready to choose?

Check the price. Read the owner reviews.

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