Main trade-off
Sonos Arc Ultra
There are no separate HDMI inputs for a console or disc player.
Head-to-head
Sonos Arc Ultra vs Beam Gen 2: Beam saves 20.75 inches of stand width, neither adds an HDMI source socket
The short answer
Choose the Beam Gen 2 if the TV stand is narrow. It is 20.75 inches shorter across than the Arc Ultra and keeps Sonos expansion options. Choose the Arc Ultra for physical upward-firing drivers, Bluetooth music and Trueplay on supported Android phones. Neither adds HDMI source inputs.
Before you choose
The reasoning and the trade-offs
Beam is nearly half as wide
Beam is about 44.7% narrower than Arc Ultra.
What this is based on
The calculation is (46.38 − 25.63) ÷ 46.38. On a 30-inch usable shelf, Beam leaves 4.37 inches of total width margin while Arc Ultra does not fit.
Main trade-off
Sonos Beam (Gen 2)
No separate HDMI source inputs and no Bluetooth music playback.
Sonos Arc Ultra
- Choose it for
- You want physical upward-firing drivers and have a wide TV stand.
- Your household needs Bluetooth music playback.
- Main trade-off
- There are no separate HDMI inputs for a console or disc player.
Sonos Beam (Gen 2)
- Choose it for
- Your soundbar space is under 32 inches wide.
- You want Sonos expansion in a smaller cabinet.
- Main trade-off
- No separate HDMI source inputs and no Bluetooth music playback.
About this comparison
Arc Ultra or Beam Gen 2? Compare cabinet fit, physical height speakers, Bluetooth and room tuning without confusing optional speakers with included ones.
Decide whether the larger cabinet fits first, then choose the height-driver and phone features you will actually use.
Winner by situation
Start with what you need it to do
A 30-inch-wide shelf
Based on cabinet width before cable and ventilation clearance.
- Sonos Arc Ultra
- Not suitable
- Sonos Beam (Gen 2)
- Better fit
Android-only room tuning
Beam Trueplay requires a compatible iOS device.
- Sonos Arc Ultra
- Better fit
- Sonos Beam (Gen 2)
- Caution
A console connected to the bar
Both rely on the TV for video-source switching.
- Sonos Arc Ultra
- Not suitable
- Sonos Beam (Gen 2)
- Not suitable
Optical TV with no extra adapter purchase
Beam includes the adapter, but optical still limits the audio format.
- Sonos Arc Ultra
- Caution
- Sonos Beam (Gen 2)
- Better fit
What matters in practice
The differences that matter
Beam is nearly half as wide
Beam is about 44.7% narrower than Arc Ultra.
How we reached this conclusion
The calculation is (46.38 − 25.63) ÷ 46.38. On a 30-inch usable shelf, Beam leaves 4.37 inches of total width margin while Arc Ultra does not fit.
The Atmos badge does not describe the driver layout
Beam processes height cues without upward-firing drivers. Arc Ultra has dedicated upward-firing hardware.
How we reached this conclusion
Neither standalone product places speakers behind the listener. Do not interpret Atmos support as an included roomful of speakers.
The upgrade path is shared, the starting package is not enlarged
Both are sold as standalone bars and can later join compatible Sonos subwoofers and surrounds.
How we reached this conclusion
An Arc Ultra purchase therefore does not replace budgeting for those accessories if physical rear surround is the goal.
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 Arc Ultra
Does not meet these checks0 separate HDMI source inputs cannot take the 1 device you want to connect to the bar.
Sonos Beam (Gen 2)
Does not meet these checks0 separate HDMI source inputs cannot take the 1 device you want to connect to the bar.
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, Arc Ultra
Sonos Arc Ultra
Choose the Arc Ultra when you want a single bar now and the option to add a Sonos subwoofer and rear speakers later. It needs nearly 47 inches of cabinet width and uses your TV for source switching.
- Best matched use
- A spacious TV stand and a surround system you can build in stages
Checked facts
- Cabinet measures 46.38 × 2.95 × 4.35 inches.
- HDMI eARC or ARC connection, with no separate HDMI source inputs.
- Upward-firing drivers provide height output for compatible Dolby Atmos content.
- Wi-Fi music, Bluetooth audio, Speech Enhancement and Night Sound are supported.
- Trueplay tuning works with supported iOS and Android devices.
Choice B
Sonos, Beam Gen 2
Sonos Beam (Gen 2)
The Beam fits a narrow TV stand and keeps a path open to a larger Sonos system. Its Atmos presentation uses processing rather than upward-firing drivers, and room tuning needs a compatible iPhone or iPad.
- Best matched use
- A compact TV setup with optional rear speakers later
Checked facts
- Cabinet measures 25.63 × 2.68 × 3.94 inches.
- HDMI eARC or ARC connection and an included optical adapter.
- Five amplified drivers, with no upward-firing drivers.
- Wi-Fi music, AirPlay 2, Night Sound and Speech Enhancement are supported.
Meaningful differences
What changes the fit
| What changes | Sonos Arc Ultra | Sonos Beam (Gen 2) | Why it matters |
|---|---|---|---|
| Width | 46.38 inches | 25.63 inches | Beam needs 20.75 fewer inches across the stand. |
| Height output | Physical upward-firing drivers | Virtual height processing | Both can accept Atmos content, but they do not create the height presentation in the same way. |
| Music from a nearby phone | Wi-Fi and Bluetooth | Wi-Fi, no Bluetooth audio | Arc Ultra can accept Bluetooth audio without making the sender join the Wi-Fi system. |
| Trueplay phone support | Supported iOS and Android | Compatible iOS device required | An Android-only household should include access to an iOS device in the Beam setup plan. |
| Optical-only TV | Separate optical adapter purchase | Optical adapter included | Neither carries Atmos over optical. Include the adapter cost for Arc Ultra. |
What you give up
Every choice has a cost
If you choose Sonos Arc Ultra
- A subwoofer and rear speakers cost extra.
If you choose Sonos Beam (Gen 2)
- Height effects are virtual rather than produced by upward-firing drivers.
What matters in practice
Before you choose
What this comparison cannot tell you
- This comparison uses manufacturer specifications and package contents, not a controlled listening test. Room shape, placement and source content affect the result.
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
Only 7 of 31 models checked match every need here: “I need a bar no wider than 32 inches” and “I will add rear speakers later”.
7 matching models from 31 checkedSee the checked facts and calculation notes
Match countThe count uses the current product-to-need assignments for “I need a bar no wider than 32 inches” and “I will add rear speakers later”. A need with no documented match does not count.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Sonos Arc Ultra |
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| Sonos Beam (Gen 2) |
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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 Arc Ultra
You want physical upward-firing drivers and have a wide TV stand.
See price & reviews on AmazonSonos Beam (Gen 2)
Your soundbar space is under 32 inches wide.
See price & reviews on AmazonLinks open in a new tab.