Main trade-off
Sonos Beam Ultra
No HDMI source input. Analog and optical adapters cost extra, and Sonos excludes CCFL-backlit TVs made in 2004 to 2012.
Head-to-head
Sonos Beam Ultra vs JBL Bar 300 MK2: Beam takes a turntable, JBL adds an HDMI source input
The short answer
Beam Ultra adds a wired turntable route through an optional adapter, while JBL adds one HDMI source input. Choose Beam when records and TV share the same audio system and the required adapter and preamp fit the plan. Choose JBL when a source needs its own HDMI connection or the lower two-inch cabinet matters. Beam is narrower, but its physical height speakers need suitable top clearance. Neither package includes external rears or a sub.
Before you choose
The reasoning and the trade-offs
A record player and a crowded TV point in opposite directions
A living room can have two unrelated input problems. The record player needs an analog music route, while a console or streaming box needs a spare TV connection. Beam Ultra handles the first through an optional Sonos adapter, cable and any necessary phono preamp. JBL handles the second with one HDMI source input. Neither fixes both directly. Write down which connection is actually missing before choosing the tidier-looking bar. If the TV already has enough suitable inputs, Beam’s analog route can be decisive. If records already play through another working system, JBL’s spare HDMI input may be the more useful addition.
What this is based on
Different supported source types crossed with two devices sharing one room. An input-count conclusion, not a guarantee of every HDMI video mode or analog-source compatibility without the preamp.
Main trade-off
JBL Bar 300 MK2
No analog line-in. The US USB port plays supported MP3 files from storage and is not a turntable input.
Sonos Beam Ultra
- Choose it for
- You want a direct record-player input at the soundbar, using the optional Sonos adapter and any required phono preamp.
- A 29.53-inch cabinet fits your surface and compatible Sonos expansion suits the household. Check TV and top-clearance requirements.
- Main trade-off
- No HDMI source input. Analog and optical adapters cost extra, and Sonos excludes CCFL-backlit TVs made in 2004 to 2012.
JBL Bar 300 MK2
- Choose it for
- One player needs a direct HDMI source input, with its exact video and audio modes checked.
- The 37-inch cabinet fits and its two-inch height clears a low screen that Beam’s 2.56 inches would obstruct.
- Main trade-off
- No analog line-in. The US USB port plays supported MP3 files from storage and is not a turntable input.
About this comparison
Beam Ultra vs JBL Bar 300 MK2 for a record player, crowded TV ports and low screen clearance. Compare complete connections before buying a single bar.
Both are current standalone Wi-Fi TV bars with no supplied external bass box. A buyer seeking a tidy all-in-one system can cross-shop them, but their extra source connections solve different problems.
Winner by situation
Start with what you need it to do
The record player needs an analog input at the bar
Beam has the optional adapter route. JBL has no analog input.
- Sonos Beam Ultra
- Better fit
- JBL Bar 300 MK2
- Not suitable
One HDMI source needs a direct soundbar connection
JBL has one source input. Verify the device’s exact video and audio modes.
- Sonos Beam Ultra
- Not suitable
- JBL Bar 300 MK2
- Better fit
The screen gap is 2.3 inches and width is sufficient
Cabinet heights are 2.56 inches and two inches. Also check the sensor and installation space.
- Sonos Beam Ultra
- Not suitable
- JBL Bar 300 MK2
- Better fit
The usable surface is 32 inches wide
Beam is 29.53 inches wide. JBL is 37 inches, before connections and clearances.
- Sonos Beam Ultra
- Better fit
- JBL Bar 300 MK2
- Not suitable
What matters in practice
The differences that matter
A record player and a crowded TV point in opposite directions
A living room can have two unrelated input problems. The record player needs an analog music route, while a console or streaming box needs a spare TV connection. Beam Ultra handles the first through an optional Sonos adapter, cable and any necessary phono preamp. JBL handles the second with one HDMI source input. Neither fixes both directly. Write down which connection is actually missing before choosing the tidier-looking bar. If the TV already has enough suitable inputs, Beam’s analog route can be decisive. If records already play through another working system, JBL’s spare HDMI input may be the more useful addition.
How we reached this conclusion
Different supported source types crossed with two devices sharing one room. An input-count conclusion, not a guarantee of every HDMI video mode or analog-source compatibility without the preamp.
The narrower bar can still be the wrong one for a low TV
Beam Ultra saves 7.47 inches of width, useful when a console or router shares the TV unit. JBL is 0.56 inch lower, which can matter more if the TV sits on low original feet. A gap between two and 2.56 inches rules out Beam’s cabinet at that position even when its smaller width looks ideal. Beam also has a separate overhead-clearance requirement for physical height output. Choose from both measurements, not from a general compact label. Keep the TV sensor unobstructed, use a stable open surface and leave the connection and ventilation space required by each manufacturer.
How we reached this conclusion
37 minus 29.53 = 7.47 inches. 2.56 minus 2 = 0.56 inch. Conditional geometric screen using body dimensions, not full installation clearance or an instruction to enclose either product.
The USB socket needs to match the source, not just the cable
A household keeping a USB record player or a collection of music files should check what each USB port is designed to do. JBL’s US socket plays supported MP3 files from a storage device. It is not the analog input a conventional record player needs. Beam Ultra’s USB-C route uses a specified Sonos adapter to accept analog line-level audio. The presence of USB-C does not make it a general computer-audio input or establish direct support for a USB turntable. For records, use the documented analog output, preamp and adapter path. For a simple MP3 storage collection, JBL has the documented playback function without inventing another conversion step.
How we reached this conclusion
US-specific USB file playback versus Sonos adapter-based analog conversion, crossed with retaining existing music sources. No USB host/device, class-compliant audio or converter compatibility inferred from connector shape.
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.
Sonos Beam Ultra
Does not meet these checks0 separate HDMI source inputs cannot take the 1 device you want to connect to the bar.
JBL Bar 300 MK2
Meets these checks37 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
Sonos, BMULTUS1BLK
Sonos Beam Ultra
You want a direct record-player input at the soundbar, using the optional Sonos adapter and any required phono preamp.
- Best matched use
- You want a direct record-player input at the soundbar, using the optional Sonos adapter and any required phono preamp.
Checked facts
- Extra source connection: Analog line-in through a separately sold Sonos adapter
- Cabinet fit: 29.53 × 2.56 × 4.13 inches
- USB purpose: USB-C accepts the specified Sonos line-in or Combo Adapter
- Height presentation: Physical upward tweeters, with simulated mode when top space is restricted
Choice B
JBL, Bar 300MK2
JBL Bar 300 MK2
One player needs a direct HDMI source input, with its exact video and audio modes checked.
- Best matched use
- One player needs a direct HDMI source input, with its exact video and audio modes checked.
Checked facts
- Extra source connection: One separate HDMI source input
- Cabinet fit: 37 × 2 × 4.1 inches
- USB purpose: US USB Type A plays supported MP3 files from storage
- Height presentation: Virtual Dolby Atmos presentation
Meaningful differences
What changes the fit
| What changes | Sonos Beam Ultra | JBL Bar 300 MK2 | Why it matters |
|---|---|---|---|
| Extra source connection | Analog line-in through a separately sold Sonos adapter | One separate HDMI source input | The music source and the TV source compete for different connection choices. |
| Cabinet fit | 29.53 × 2.56 × 4.13 inches | 37 × 2 × 4.1 inches | Beam is 7.47 inches narrower. JBL is 0.56 inch lower. |
| USB purpose | USB-C accepts the specified Sonos line-in or Combo Adapter | US USB Type A plays supported MP3 files from storage | Neither socket should be assumed to accept an arbitrary USB record player or computer audio output. |
| Height presentation | Physical upward tweeters, with simulated mode when top space is restricted | Virtual Dolby Atmos presentation | The Beam feature needs an appropriate upward path. The badge alone does not settle placement. |
| Basic daily control | TV remote, touch controls and Sonos app | Included handheld remote, TV control and JBL One app | JBL includes a separate physical controller. Beam uses the TV control arrangement and app. |
What you give up
Every choice has a cost
If you choose Sonos Beam Ultra
- Four inches of top clearance is the documented upward-output guidance. Below that, use simulated overhead and keep ventilation clear.
If you choose JBL Bar 300 MK2
- An added HDMI socket does not guarantee the high-refresh video mode you want. Check the whole source-to-TV path.
Recommendation switch
The decision flips if...
The missing connection is analog music from a turntable
Choose Sonos Beam Ultra. Beam supplies a documented route with the specified separate equipment.
The missing connection is an HDMI source, or the screen is too low for Beam
Choose JBL Bar 300 MK2. JBL adds one HDMI input in a lower cabinet.
What matters in practice
Before you choose
You want one unobtrusive bar, but either the record player or the crowded TV needs a connection the other model does not provide.
What this comparison cannot tell you
- No measured sound-quality winner or universal high-refresh HDMI claim. JBL’s US USB function does not establish the same feature on other regions. Optional surrounds are separate purchases on both systems.
What the facts say
What the comparison shows
Useful conclusions from the current soundbars comparison, followed by the checked facts used to reach them.
See the checked facts and calculation notes
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Sonos Beam Ultra |
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| JBL Bar 300 MK2 |
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Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
Sonos Beam Ultra
You want a direct record-player input at the soundbar, using the optional Sonos adapter and any required phono preamp.
A 29.53-inch cabinet fits your surface and compatible Sonos expansion suits the household. Check TV and top-clearance requirements.
See price & reviews on AmazonJBL Bar 300 MK2
One player needs a direct HDMI source input, with its exact video and audio modes checked.
The 37-inch cabinet fits and its two-inch height clears a low screen that Beam’s 2.56 inches would obstruct.
See price & reviews on AmazonLinks open in a new tab.