Scored using Portable Speakers Methodology v1.0
Portable Speakers Methodology v1.0
Mathematical & Unbiased Scoring
Products in this category are scored under Frontum Portable Speakers Methodology v1.0: technical specifications plus authentic consumer ratings, with 0% commercial bias.
Explore Portable Speakers Methodology v1.0

Marshall Kilburn II Review | 130 Data compared

Avg. price:~£210Audio output power:36.00 WBattery life:20 hoursIP rating:IPX2Bluetooth version:5.0Weight:2500 g

Marshall Kilburn II Review: Compare 130 technical specifications and user reviews to see how this product ranks in the Portable Speakers category and whether it is worth buying.

Marshall Kilburn II
7.5/10

Overall score

Score
7.5/ 10
✕
What it is
An overall evaluation of products in the Portable Speakers category, based on technical analysis and user reviews.
When it matters
When you need a quick reference for identifying the best products in the Portable Speakers category.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

80%

7.1

Technical score

20%

8.8

User score

â–²Better than 88% of portable speakers
8.1

Value for money

Value for money
8.1/ 10
✕
What it is
An indicator that combines the overall score of products in the Portable Speakers category with their prices.
When it matters
When you are comparing products in the Portable Speakers category and want a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

70%

7.5

Overall score

30%

9.4

Price

â–²Better than 86%
7.1

Technical score

Technical score
7.1/ 10
✕
What it is
An assessment of technical performance for products in the Portable Speakers category across these key areas: Audio, Connectivity, Battery, Durability, Controls, Design, Smart features.
When it matters
When you want to compare products in the Portable Speakers category by technical performance, specifications, and available features.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

32%

7.3

Audio

20%

9.1

Battery

18%

6.9

Durability

16%

6.2

Connectivity

8%

5.3

Controls

3%

6.9

Design

3%

4.1

Smart features

â–²Better than 82%
8.8

User score

User score
8.8/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Portable Speakers category.
When it matters
When you want to know how products in the Portable Speakers category perform in everyday use and how reliable owners find them over time.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

70%

8.9

User ratings

30%

8.6

Number of reviews

Based on ratings from across the web.
â–²Better than 83%
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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 portable speaker Marshall Kilburn II

Technical score
Technical score
7.1/ 10
✕
What it is
An assessment of technical performance for products in the Portable Speakers category across these key areas: Audio, Connectivity, Battery, Durability, Controls, Design, Smart features.
When it matters
When you want to compare products in the Portable Speakers category by technical performance, specifications, and available features.
Score distribution
â–¼
<55-66-77-88-99-10
Score components:

32%

7.3

Audio

20%

9.1

Battery

18%

6.9

Durability

16%

6.2

Connectivity

8%

5.3

Controls

3%

6.9

Design

3%

4.1

Smart features

7.1
User score
User score
8.8/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Portable Speakers category.
When it matters
When you want to know how products in the Portable Speakers category perform in everyday use and how reliable owners find them over time.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

70%

8.9

User ratings

30%

8.6

Number of reviews

Based on ratings from across the web.
8.8
Popularity
Popularity
8.6/ 10
✕
What it is
An indicator based on the number of reviews received by products in the Portable Speakers category.
When it matters
When you prefer products in the Portable Speakers category that have been chosen and reviewed by many other buyers.
Score distribution
â–¼
<55-66-77-88-99-10
Popularity:
Marshall Kilburn II has a popularity score of 8.6 points, which is higher than 83.4% of products in this category.
8.6
Value for money
Value for money
8.1/ 10
✕
What it is
An indicator that combines the overall score of products in the Portable Speakers category with their prices.
When it matters
When you are comparing products in the Portable Speakers category and want a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
Score components:

70%

7.5

Overall score

30%

9.4

Price

8.1
Audio output power
36 W
This portable speaker has an audio output power of 36 W which is higher than that of 69.4% of portable speakers and equal to that of 0.6% of portable speakers.
Driver unit size
101 mm
This portable speaker has a driver unit size of 101 mm which is larger than that of 88.7% of portable speakers and equal to that of 1.9% of portable speakers.
Number of drivers
3
This portable speaker has 3 drivers, which is more than 70.1% of portable speakers and equal to the number in 11.5% of portable speakers.
Frequency response tolerance
6 dB
This portable speaker has a frequency response tolerance of 6 dB which is higher than that of 81.7% of portable speakers and equal to that of 16.7% of portable speakers.
Lowest frequency
52 Hz
This portable speaker has a lowest frequency of 52 Hz which is lower than that of 59.2% of portable speakers and equal to that of 0.4% of portable speakers.
Show more
Bluetooth connectivity
yes
This portable speaker supports Bluetooth audio. 5.4% of portable speakers offer this feature.
Bluetooth version
5
This portable speaker supports Bluetooth version 5 which is newer than that of 46.3% of portable speakers and equal to that of 24.4% of portable speakers.
Maximum Bluetooth range
10 m
This portable speaker has a maximum Bluetooth range of 10 m which is longer than that of 4.3% of portable speakers and equal to that of 70.2% of portable speakers.
Bluetooth profiles supported
A2DP; AVRCP
Bluetooth LE Audio
no
This portable speaker does not support Bluetooth LE Audio. 2.5% of portable speakers offer this feature.
Show more
Battery life
20 hours
This portable speaker has a battery life of 20 hours which is longer than that of 80.2% of portable speakers and equal to that of 7.3% of portable speakers.
Battery capacity
6,400 mAh
This portable speaker has a battery capacity of 6,400 mAh which is larger than that of 89.7% of portable speakers and equal to that of 0.2% of portable speakers.
Charging time
2 hours
This portable speaker has a charging time of 2 hours which is shorter than that of 72.9% of portable speakers and equal to that of 22.6% of portable speakers.
Maximum charging input power
?
Built-in rechargeable battery
yes
This portable speaker has a built-in rechargeable battery. 18.7% of portable speakers offer this feature.
Show more
IP rating
IPX2
This portable speaker has an IP rating of IPX2 which provides worse ingress protection than 98.9% of portable speakers and the same ingress protection as 0.9% of portable speakers.
Water resistance
yes
This portable speaker is water resistant. 38.3% of portable speakers offer this feature.
Dust resistance
?
Waterproof depth rating
?
Drop resistance
no
This portable speaker lacks an impact-resistance rating. 32.8% of portable speakers offer this feature.
Show more
On-device controls placement
top
Touchscreen
no
This portable speaker does not have a touchscreen. 0.3% of portable speakers offer this feature.
Smartphone app control
no
This portable speaker does not support smartphone app control. 54% of portable speakers offer this feature.
No compatible mobile app for speaker control.
Remote control
no
This portable speaker does not include a remote control. 15% of portable speakers offer this feature.
Fast pairing
?
Show more
Weight
2,500 g
This portable speaker weighs 2,500 g which is heavier than that of 75.8% of portable speakers and equal to that of 0.7% of portable speakers.
Height
16.2 cm
This portable speaker has a height of 16.2 cm which is taller than that of 62.7% of portable speakers and equal to that of 0.2% of portable speakers.
Width
24.3 cm
This portable speaker has a width of 24.3 cm which is wider than that of 67.9% of portable speakers and equal to that of 0.3% of portable speakers.
Depth
14 cm
This portable speaker has a depth of 14 cm which is deeper than that of 75.5% of portable speakers and equal to that of 1.4% of portable speakers.
Carry options
?
Show more
Companion app name
?
Firmware updates
no
This portable speaker does not support firmware updates. 47.2% of portable speakers offer this feature.
Firmware update method
?
Voice assistant support
no
This portable speaker does not support voice assistants. 26.5% of portable speakers offer this feature.
Spotify Connect
no
This portable speaker does not support Spotify Connect. 10.8% of portable speakers offer this feature.
Show more

Marshall Kilburn II vs the average portable speaker

246810TotalAudioConnectivityBatteryDurabilityControlsDesignSmart features
  • 51 mm larger main driver
    This portable speaker has a larger main driver than the average portable speaker (101 mm vs 50 mm).
    101 mm vs 50 mm
  • 3,800 mAh more battery capacity
    This portable speaker has a larger battery capacity than the average portable speaker (6,400 mAh vs 2,600 mAh).
    6,400 mAh vs 2,600 mAh
  • 8 hours longer battery life
    This portable speaker has a longer battery life than the average portable speaker (20 hours vs 12 hours).
    20 hours vs 12 hours
  • Provides 360-degree sound
    This portable speaker provides 360-degree sound, while the average portable speaker does not provide 360-degree sound.
    Provides omnidirectional 360° sound radiation.
  • Includes a subwoofer
    This portable speaker includes a subwoofer, while the average portable speaker does not include a subwoofer.
    Has an integrated active subwoofer driver.
  • 1 more multipoint connections
    This portable speaker has more multipoint connections than the average portable speaker (2 vs 1).
    2 vs 1
  • 1 hours shorter charging time
    This portable speaker has a shorter charging time than the average portable speaker (2 hours vs 3 hours).
    2 hours vs 3 hours
  • Has built-in stereo speakers
    This portable speaker has built-in stereo speakers, while the average portable speaker does not have built-in stereo speakers.
    Provides true stereo output within the unit.
  • 9.9% higher user score
    User score
    8.8/ 10
    ✕
    What it is
    A rating that combines user reviews with the total review volume for products in the Portable Speakers category.
    When it matters
    When you want to know how products in the Portable Speakers category perform in everyday use and how reliable owners find them over time.
    Score distribution
    â–¼
    â–¼
    <55-66-77-88-99-10
    Marshall Kilburn II
    the average portable speaker
    Marshall Kilburn II has a higher user score than the average portable speaker (8.79 vs 8).
    8.79 vs 8
  • 6.7% better value for money
    Marshall Kilburn II offers better value for money than the average portable speaker (8.05 vs 7.5).
    8.05 vs 7.55
  • 2.04x more popular
    Marshall Kilburn II is more popular than the average portable speaker (8.59 vs 4.21).
    8.59 vs 4.21
  • 51 mm larger main driver
    This portable speaker has a larger main driver than the average portable speaker (101 mm vs 50 mm).
    101 mm vs 50 mm
  • Provides 360-degree sound
    This portable speaker provides 360-degree sound, while the average portable speaker does not provide 360-degree sound.
    Provides omnidirectional 360° sound radiation.
  • Includes a subwoofer
    This portable speaker includes a subwoofer, while the average portable speaker does not include a subwoofer.
    Has an integrated active subwoofer driver.
  • Has built-in stereo speakers
    This portable speaker has built-in stereo speakers, while the average portable speaker does not have built-in stereo speakers.
    Provides true stereo output within the unit.
  • 8 dB SPL higher maximum sound pressure
    This portable speaker has a higher maximum sound pressure level than the average portable speaker (100 dB SPL vs 92 dB SPL).
    100 dB SPL vs 92 dB SPL
  • 1 more speaker drivers
    This portable speaker has more speaker drivers than the average portable speaker (3 vs 2).
    3 vs 2
  • 16 W more audio output power
    This portable speaker has more audio output power than the average portable speaker (36 W vs 20 W).
    36 W vs 20 W
  • 0.5 % lower total harmonic distortion
    This portable speaker has lower total harmonic distortion than the average portable speaker (0.5 % vs 1 %).
    0.5 % vs 1 %
  • 8 Hz deeper bass extension
    This portable speaker has deeper bass extension than the average portable speaker (52 Hz vs 60 Hz).
    52 Hz vs 60 Hz
  • 1 more multipoint connections
    This portable speaker has more multipoint connections than the average portable speaker (2 vs 1).
    2 vs 1
  • Supports aptX
    This portable speaker supports aptX, while the average portable speaker does not support aptX.
  • Has a USB Type-C port
    This portable speaker has a USB Type-C port, while the average portable speaker does not have a USB Type-C port.
    Has a physical USB-C port.
  • 3,800 mAh more battery capacity
    This portable speaker has a larger battery capacity than the average portable speaker (6,400 mAh vs 2,600 mAh).
    6,400 mAh vs 2,600 mAh
  • 8 hours longer battery life
    This portable speaker has a longer battery life than the average portable speaker (20 hours vs 12 hours).
    20 hours vs 12 hours
  • 1 hours shorter charging time
    This portable speaker has a shorter charging time than the average portable speaker (2 hours vs 3 hours).
    2 hours vs 3 hours
  • Has a removable battery
    This portable speaker has a removable battery, while the average portable speaker does not have a removable battery.
  • Has an equalizer
    This portable speaker has an equalizer, while the average portable speaker does not have an equalizer.
    Offers user-selectable EQ, tone adjustment, or sound presets.
  • Supports playback mute
    This portable speaker supports playback mute, while the average portable speaker does not support playback mute.
    Speaker playback audio can be directly muted.
  • 3 dB wider frequency-response tolerance
    This portable speaker has a wider frequency-response tolerance than the average portable speaker (6 dB vs 3 dB).
    6 dB vs 3 dB
  • 1 fewer microphones
    This portable speaker has fewer microphones than the average portable speaker (0 vs 1).
    0 vs 1
  • Does not support smartphone app control
    This portable speaker does not support smartphone app control, while the average portable speaker supports smartphone app control.
    No compatible mobile app for speaker control.
  • Does not include a passive radiator
    This portable speaker does not include a passive radiator, while the average portable speaker includes a passive radiator.
  • Worse ingress protection
    This portable speaker has worse ingress protection than the average portable speaker (IPX2 vs IPX5).
    IPX2 vs IPX5
  • Does not support stereo pairing
    This portable speaker does not support stereo pairing, while the average portable speaker supports stereo pairing.
  • Does not support True Wireless Stereo
    This portable speaker does not support True Wireless Stereo, while the average portable speaker supports True Wireless Stereo.
  • 1,700 g heavier
    This portable speaker is heavier than the average portable speaker (2,500 g vs 800 g).
    2,500 g vs 800 g
  • 2.33x more expensive
    Marshall Kilburn II is more expensive than the average portable speaker (£210 vs £90).
    £210 vs £90
  • 3 dB wider frequency-response tolerance
    This portable speaker has a wider frequency-response tolerance than the average portable speaker (6 dB vs 3 dB).
    6 dB vs 3 dB
  • 1 fewer microphones
    This portable speaker has fewer microphones than the average portable speaker (0 vs 1).
    0 vs 1
  • Does not include a passive radiator
    This portable speaker does not include a passive radiator, while the average portable speaker includes a passive radiator.
  • Worse ingress protection
    This portable speaker has worse ingress protection than the average portable speaker (IPX2 vs IPX5).
    IPX2 vs IPX5
  • Does not support smartphone app control
    This portable speaker does not support smartphone app control, while the average portable speaker supports smartphone app control.
    No compatible mobile app for speaker control.
  • Does not support stereo pairing
    This portable speaker does not support stereo pairing, while the average portable speaker supports stereo pairing.
  • Does not support True Wireless Stereo
    This portable speaker does not support True Wireless Stereo, while the average portable speaker supports True Wireless Stereo.
  • 1,700 g heavier
    This portable speaker is heavier than the average portable speaker (2,500 g vs 800 g).
    2,500 g vs 800 g
  • 5.7 cm deeper
    This portable speaker is deeper than the average portable speaker (14 cm vs 8.3 cm).
    14 cm vs 8.3 cm
  • 6.2 cm wider
    This portable speaker is wider than the average portable speaker (24.3 cm vs 18.1 cm).
    24.3 cm vs 18.1 cm
  • 3.8 cm taller
    This portable speaker is taller than the average portable speaker (16.2 cm vs 12.4 cm).
    16.2 cm vs 12.4 cm

Video reviews

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

Expert reviews

In-depth analysis and verdict from leading tech publications

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techradar.com
30/08/2018
Summary of the review
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expertreviews.co.uk
30/08/2018
Summary of the review
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appleinsider.com
14/09/2018
Summary of the review
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t3.com
30/08/2018
Summary of the review
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stuff.tv
31/08/2018
Summary of the review
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pcmag.com
05/06/2019
Summary of the review
U
uk.pcmag.com
05/06/2019
Summary of the review
A
au.pcmag.com
06/06/2019
Summary of the review
K
kit.honestjohn.co.uk
03/06/2019
Summary of the review
A
androidcentral.com
24/11/2019
Summary of the review
M
macsources.com
12/04/2020
Summary of the review
P
perfectacoustic.co.uk
N/A
Summary of the review
P
pocket-lint.com
13/09/2018
Summary of the review
T
techhive.com
28/09/2018
Summary of the review
P
phonescoop.com
19/11/2018
Summary of the review
S
stereoguide.com
04/02/2022
Summary of the review
C
chip.de
02/01/2019
Summary of the review
H
hifi.de
12/01/2021
Summary of the review
H
heise.de
14/01/2021
Summary of the review
A
areadvd.de
27/04/2022
Summary of the review

Third-party reviews

Based on ratings from across the web.
Reviews last updated: August 2026 · How we calculate this

What customers like about Marshall Kilburn II

  • Iconic, retro guitar-amplifier design with premium finishes
  • Rich, powerful, and clear sound profile, particularly for rock music
  • Tactile, analog physical knobs for adjusting bass, treble, and volume
  • Impressive battery life offering up to 20 hours of playtime
  • Solid, rugged build quality with reinforced corners and a premium carrying strap
  • Convenient fast-charging capability

What customers don't like about Marshall Kilburn II

  • Expensive price point compared to other portable Bluetooth speakers
  • Bulky and heavy (approx. 2.5 kg), making it less ideal for throwing into a backpack
  • Lacks deep sub-bass extension, delivering a thumpy rather than a boomy bass
  • Weak IPX2 water-resistance rating, protecting only against minor drips
  • No modern smart features like built-in voice assistants or a companion app for EQ adjustment
  • Lacks a USB port to charge mobile devices on the go
  • Cannot be paired with other speakers to create a stereo pair or multi-room setup

Verdict

The Marshall Kilburn II is a rugged, retro-styled portable Bluetooth 5.0 aptX speaker weighing 5.5 lbs (2.5 kg) and featuring a 36-watt total output driven by one 20W woofer and two 8W tweeters across a 52–20,000 Hz frequency range. Main pros include an impressive 20+ hours of battery life with 15-minute quick charging for 3 hours of playback, tactile analog knobs for customizable bass and treble adjustments, and immersive 360-degree True Stereophonic multi-directional sound. However, notable cons are its limited IPX2 water-resistance rating which only protects against light vertical drops, a lack of deep sub-bass frequencies for electronic genres, and the absence of basic play/pause track controls or smartphone volume synchronization on the unit itself.

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