OVERALL
ALTERNATIVES
SPECS
VS AVERAGE
REVIEWS
Scored using Soundbars Methodology v3.0
Soundbars Methodology v3.0
Mathematical & Unbiased Scoring
Products in this category are scored under Frontum Soundbars Methodology v3.0: the technical score from the specifications is the base, and independent expert and video reviews (up to ±0.5 points), owner opinions (up to ±0.3) and best-of lists (up to +0.3) move it up or down.
Explore Soundbars Methodology v3.0

Oakcastle SB40 Xtra review: 108 specs compared

Avg. price:~£60N. of audio channels:2.1Audio output power:?HDMI ARC type:ARC

Oakcastle SB40 Xtra Review: Compare 108 technical specifications to see how this product ranks in the Soundbars category and whether it is worth buying.

Oakcastle SB40 Xtra
6.9/10

Overall score

Score
6.9/ 10
✕
What it is
Our main score for this model, 1–10. It combines specs, best-of lists, expert reviews and owners.
How we count it
Parts: Technical score 35%, List score 30%, Reviews score 25%, Sentiment score 10%
Marks: Each part gets a mark out of 10. For reviews, lists and owners, a typical model in this category gets about 8 and the best one gets 10.
No data yet: A part with no data shows "?". It counts as the mark of a weaker model in this category (4 in 5 models with data score higher). This way, models with reviews, lists and owners usually come out ahead.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 60% of models
Score components

35%

5.9

Technical score

30%

?

List scoreNot enough data yet, so we use 7.5, the mark of a weaker model in this category

25%

?

Reviews scoreNot enough data yet, so we use 7.6, the mark of a weaker model in this category

10%

?

Sentiment scoreNot enough data yet, so we use 6.8, the mark of a weaker model in this category

â–²Better than 60% of soundbars
7.8

Value for money

Value for money
7.8/ 10
✕
What it is
An indicator that combines the soundbar's overall rating with its cost.
When it matters
When you are looking for a soundbar with a good balance between audio quality, features, and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 66% of models
Score components

70%

6.9

Overall score

30%

10

Price

â–²Better than 66%
5.9

Technical score

Technical score
5.9/ 10
✕
What it is
How good the specs are compared with the other models in this category, 1–10.
How we count it
Areas: We rate the specs in each area against the other models in this category.
Weighting: The areas that matter most to buyers count more. The shares are shown under Score components.
Share: The technical score is 35% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 53% of models
Score components

25%

5.9

Audio

18%

5.4

Formats

16%

7.3

Connectivity

14%

6.1

Controls

12%

5.8

HDMI

10%

4.0

Streaming

5%

7.5

Design

â–²Better than 53%
?

Reviews score

Reviews score
✕
What it is
Average grade from independent test sites, magazines and video reviewers, 1–10.
How we count it
Grades: Each review's own score is converted to 1–10; without one, we grade the review ourselves. Every review counts the same: written or video, short or full test.
Score: The average grade is 80% of the review mark; the number of reviews is the other 20% (1 review = 5, the typical number in this category = 8, the most-reviewed model = 10).
Enough data: With few reviews, the average grade is pulled toward the typical grade of this category. No reviews yet: 7.6 for now.
Share: Reviews count 25% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
Grades by review (0)
We have not found an independent test of this model yet. Until we do, its review part counts as 7.6.
User ratings collected online are not part of this score.
No expert tests yet
?

List score

List score
7.5/ 10
✕
What it is
How often independent test sites, magazines and video reviewers put this model in their best-of lists for this category.
How we count it
Points: The model in the most lists of this category gets 10; the others get 8 to 10 in proportion. In no list yet: 7.5. Lists count 30% of the overall score.
Enough data: Every list counts, even a single one. With fewer than 5 best-of lists in the category, this part is left out.
Lists with this model (0)
Not in any best-of list yet, so this part counts as 7.5. Models in a list get 8 to 10.
Not in any best-of list yet
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Where to buy
*As an Amazon Associate, we earn from qualifying purchases.
Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Technical Specifications of soundbar Oakcastle SB40 Xtra

Technical score
Technical score
5.9/ 10
✕
What it is
How good the specs are compared with the other models in this category, 1–10.
How we count it
Areas: We rate the specs in each area against the other models in this category.
Weighting: The areas that matter most to buyers count more. The shares are shown under Score components.
Share: The technical score is 35% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 53% of models
Score components:

25%

5.9

Audio

18%

5.4

Formats

16%

7.3

Connectivity

14%

6.1

Controls

12%

5.8

HDMI

10%

4.0

Streaming

5%

7.5

Design

5.9
Reviews score
7.6
List score
?
Value for money
Value for money
7.8/ 10
✕
What it is
An indicator that combines the soundbar's overall rating with its cost.
When it matters
When you are looking for a soundbar with a good balance between audio quality, features, and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 66% of models
Score components:

70%

6.9

Overall score

30%

10

Price

7.8
N. of audio channels
2.1
This soundbar offers 2.1 audio channels, more than 42.2% of soundbars and equal to 27.6% of soundbars.
Audio output power
?
Max SPL
?
Min frequency
?
Max frequency
?
Show more
Dolby Atmos
?
DTS:X
no
This soundbar does not support DTS:X. 16.7% of soundbars include this feature.
Dolby TrueHD
no
This soundbar does not support Dolby TrueHD. 16.5% of soundbars include this feature.
DTS-HD Master Audio
no
This soundbar does not support DTS-HD Master Audio. 7.6% of soundbars include this feature.
Dolby Digital Plus
no
This soundbar does not support Dolby Digital Plus. 25.3% of soundbars include this feature.
Show more
N. of HDMI inputs
?
Wi-Fi connectivity
no
This soundbar does not support Wi-Fi connectivity. 28.8% of soundbars include this feature.
Wi-Fi version
N/A
Bluetooth connectivity
yes
This soundbar supports Bluetooth connectivity. 4.6% of soundbars include this feature.
Bluetooth version
?
Show more
Smartphone app
no
This soundbar does not have smartphone app. 42.6% of soundbars offer this feature.
Remote control
yes
This soundbar has remote control. 17.5% of soundbars offer this feature.
Control panel
yes
This soundbar has control panel. 5.5% of soundbars offer this feature.
Voice assistant compatibility
no
This soundbar does not support voice assistant compatibility. 36.8% of soundbars include this feature.
Far-field microphones
no
This soundbar does not have far-field microphones. 7.1% of soundbars offer this feature.
Show more
HDMI version
?
HDMI ARC type
ARC
This soundbar has ARC as its HDMI TV-audio return type, which is more advanced than what 24.7% of soundbars and the same as what 46.5% offers.
HDMI-CEC support
yes
This soundbar supports HDMI-CEC. 29.2% support HDMI-CEC.
HDMI pass-through resolution
none
This soundbar passes through none, which is lower resolution than 27.2% of soundbars and equal to 72.8% of soundbars.
HDMI pass-through frame rate
none fps
This soundbar supports HDMI pass-through up to none fps, lower than 21.4% of soundbars and equal to 78.6% of soundbars.
Show more
AirPlay
no
This soundbar does not support AirPlay. 19.9% of soundbars include this feature.
Chromecast built-in
no
This soundbar does not support Chromecast built-in. 11.4% of soundbars include this feature.
Spotify Connect
no
This soundbar does not support Spotify Connect. 20.8% of soundbars include this feature.
TIDAL Connect
no
This soundbar does not support TIDAL Connect. 9.2% of soundbars include this feature.
Amazon Music native support
no
This soundbar does not support native Amazon Music. 13% support native Amazon Music.
Show more
Width
?
Height
?
Thickness
?
Weight
?
Build material
plastic
This soundbar is built from plastic, which is more premium than 3% of soundbars and equal to 92.6% of soundbars.
Show more

Oakcastle SB40 Xtra vs the average soundbar

246810TotalAudioFormatsConnectivityHDMIStreamingControlsDesign
  • Subwoofer included
    This soundbar has subwoofer included, the average soundbar does not.
  • Subwoofer included
    This soundbar has subwoofer included, the average soundbar does not.
  • Less advanced HDMI ARC type
    This soundbar has ARC as its HDMI TV-audio return type, while the average soundbar has eARC.
    ARC vs eARC
  • No night mode
    This soundbar does not support night mode, the average soundbar does.
  • 0.75 in inch smaller subwoofer driver size
    This soundbar has a lower subwoofer driver size than the average soundbar (5.3 in vs 6 in). The average soundbar uses a subwoofer driver size of 6 in.
    5.25 in vs 6 in
  • No AAC support
    This soundbar does not support AAC, the average soundbar does.
  • 0.75 in inch smaller subwoofer driver size
    This soundbar has a lower subwoofer driver size than the average soundbar (5.3 in vs 6 in). The average soundbar uses a subwoofer driver size of 6 in.
    5.25 in vs 6 in
  • No AAC support
    This soundbar does not support AAC, the average soundbar does.
  • Less advanced HDMI ARC type
    This soundbar has ARC as its HDMI TV-audio return type, while the average soundbar has eARC.
    ARC vs eARC
  • No night mode
    This soundbar does not support night mode, the average soundbar does.

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

8.0
Der Herr der Sinne | Jürgen Beer
≈ estimated
04/09/2026
First look · build, connections and sound impressions
Verdict
Oakcastle SB40 Xtra is good value for the money if space is tight, though its small woofer limits bass.

Third-party reviews

What customers like about Oakcastle SB40 Xtra

  • A 5.25 in subwoofer driver adds more bass than a plain 2.0 bar.
  • The headphone jack lets you listen without disturbing anyone.
  • The USB audio input plays audio from a drive.
  • HDMI ARC lets the TV send its sound over one cable.
  • Dialogue enhancement keeps speech clear over the music.
  • Bluetooth and a remote control cover phone and sofa use.

What customers don't like about Oakcastle SB40 Xtra

  • There is no app for adjusting the sound.
  • There is no Wi-Fi or AirPlay for streaming from a phone or tablet.
  • There is no Dolby Atmos or DTS:X for a wider surround effect.
  • There is no multiroom support for linking other speakers.
  • There is no Spotify Connect for direct streaming from the app.

Verdict

Bass is the main difference here: the Oakcastle SB40 Xtra adds a 5.25 in subwoofer driver to a standard soundbar. That gives it a fuller low end for films and music than a plain 2.0 bar. It has HDMI ARC for the TV, an optical input for older sets, and Bluetooth for a phone. A USB audio input plays sound from a drive, and a headphone jack lets you listen alone late at night. Dialogue enhancement helps voices come through over the music and effects. A remote and buttons on the bar keep control simple. The trade-off is the lack of extras: there is no app, no Wi-Fi and no Dolby Atmos or DTS:X. It suits a buyer who wants more punch from a simple TV setup and does not need surround effects.

Compare Oakcastle SB40 Xtra with other soundbars

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