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Audio Pro Addon C5a Review | 130 Data compared

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  • Avg. price: ~£170
  • Audio output power: 40.00 W
  • Battery life: 12 hours
  • IP rating: ?
  • Bluetooth version: 4.0
  • Weight: 2500 g

Audio Pro Addon C5a 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.

7.6

Overall score

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 components:

80.0%

7.3

Technical Score

20.0%

8.7

User score

Very good
7.3

Technical Score

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 components:

32.0%

8.2

Audio

20.0%

7.0

Battery

18.0%

6.1

Durability

16.0%

6.5

Connectivity

8.0%

8.0

Controls

3.0%

6.9

Design

3.0%

8.5

Smart features

Very good
8.7

User score

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 components:

70.0%

8.2

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.1
(240)

(Reviews last updated: August 2026)

Excellent
  • 5.9
    Outdoor durability

    Score components:

    40.0%

    4.0

    Water resistance

    25.0%

    ?

    IP rating

    20.0%

    7.5

    Weight

    15.0%

    5.2

    Battery life

  • 6.4
    Powerful sound

    Score components:

    45.0%

    5.6

    Audio output power

    25.0%

    5.2

    Battery life

    15.0%

    7.5

    Weight

    15.0%

    10

    Party mode

  • 8.7
    Home listening

    Score components:

    35.0%

    10

    Multi-room support

    30.0%

    10

    Wi-Fi connectivity

    20.0%

    5.6

    Audio output power

    15.0%

    7.5

    Weight

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Best prices in UK

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The Audio Pro Addon C5a is a premium, mains-powered multiroom smart speaker driven by a 40W digital Class D amplifier, featuring a 4-inch long-throw woofer and dual 0.75-inch textile dome tweeters that deliver a frequency range of 50 to 20,000 Hz. Main characteristics and pros include integrated Amazon Alexa voice control, multiroom functionality via Wi-Fi (2.4 GHz), Bluetooth 4.0, and versatile physical inputs like RCA, 3.5mm AUX, and Ethernet, alongside a dedicated subwoofer output and four customizable top-panel preset buttons for instant playlist access. Despite its exceptional, room-filling hi-fi sound and award-winning acoustic clarity, notable cons include its lack of a built-in battery—rendering it non-portable outside the home—and its limitation to older Wi-Fi 4 standards without official support for modern features like AirPlay 2 or Google Cast.

Technical Specifications of portable speaker Audio Pro Addon C5a

Technical Score

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 components:

32.0%

8.2

Audio

20.0%

7.0

Battery

18.0%

6.1

Durability

16.0%

6.5

Connectivity

8.0%

8.0

Controls

3.0%

6.9

Design

3.0%

8.5

Smart features

7.3
Audio Pro Addon C5a has a technical score of 7.25 points, which is higher than 75.2% of products in this category.
User score

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 components:

70.0%

8.2

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.1
(240)

(Reviews last updated: August 2026)

8.7
Audio Pro Addon C5a has a user score of 8.74 points, which is higher than 69.4% of products in this category.
Popularity
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.
10
Audio Pro Addon C5a has a popularity of 10 points, which is higher than 66.6% of products in this category.
Ratio quality/price

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 components:

60.0%

7.6

Overall score

40.0%

9.6

Price

8.2
Audio Pro Addon C5a has a quality-to-price ratio of 8.2 points, which is higher than 83.4% of products in this category.
Audio output power
What it is: The maximum continuous power the speaker system can deliver.
When it matters: When you need enough output to fill a larger or noisier space.

Importance: HIGH

Good value: >= 20 W

40.00 W
Audio Pro Addon C5a has an audio output power of 40.00 W which is higher than that of 70.1% of portable speakers and equal to that of 4.7% of portable speakers.
Total RMS output: 40.00 W.
Driver unit size
What it is: The diameter of each main speaker driver.
When it matters: When the size of the main driver influences bass reach and output capability.

Importance: HIGH

Good value: >= 50 mm

101.00 mm
Audio Pro Addon C5a has a driver unit size of 101.00 mm which is larger than that of 88.7% of portable speakers and equal to that of 1.9% of portable speakers.
Primary driver diameter: 101.00 mm.
Number of drivers
What it is: The total number of speaker drivers built into the unit.
When it matters: When fuller driver arrays and broader sound coverage matter.

Importance: MEDIUM

Good value: >= 2

3
Audio Pro Addon C5a has 3 drivers, which is more than 70.1% of portable speakers and equal to the number in 11.5% of portable speakers.
Acoustic drivers: 3.
Frequency response tolerance
What it is: The allowed deviation around the stated frequency response curve.
When it matters: When a flatter and more accurate frequency response matters.

Importance: MEDIUM

Good value: <= 3 dB

?
Lowest frequency
What it is: The lowest audible frequency the speaker can reproduce.
When it matters: When deeper bass extension matters.

Importance: HIGH

Good value: <= 60 Hz

50.00 Hz
Audio Pro Addon C5a has a lowest frequency of 50.00 Hz which is lower than that of 59.9% of portable speakers and equal to that of 9.1% of portable speakers.
Lower frequency-response endpoint: 50.00 Hz.
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Bluetooth connectivity
What it is: Indicates whether the speaker can receive audio over Bluetooth.
When it matters: When wireless playback from phones, tablets, or computers matters.

Importance: MEDIUM

Good value: yes

yes
Audio Pro Addon C5a supports Bluetooth audio. 5.4% of portable speakers offer this feature.
Bluetooth version
What it is: The generation of Bluetooth supported by the speaker hardware.
When it matters: When compatibility and efficiency with newer Bluetooth devices matter.

Importance: LOW

Good value: >= 5.0

4.0
Audio Pro Addon C5a supports Bluetooth version 4.0 which is older than that of 76.7% of portable speakers and equal to that of 8.7% of portable speakers.
Bluetooth version: 4.0.
Maximum Bluetooth range
What it is: The farthest distance at which the Bluetooth link can remain usable.
When it matters: When the source device may be far from the speaker.

Importance: MEDIUM

Good value: >= 10 m

10.00 m
Audio Pro Addon C5a has a maximum Bluetooth range of 10.00 m which is longer than that of 4.3% of portable speakers and equal to that of 70.2% of portable speakers.
Maximum Bluetooth range: 10.00 m.
Bluetooth profiles supported
What it is: The Bluetooth operating profiles available for playback, control, or calls.
When it matters: When Bluetooth playback, control, and call compatibility depend on specific profiles.

Importance: LOW

A2DP; HFP
Bluetooth LE Audio
What it is: Shows whether the speaker supports the low-energy Bluetooth audio standard.
When it matters: When newer low-power Bluetooth audio features matter.

Importance: LOW

Good value: yes

no
Audio Pro Addon C5a does not support Bluetooth LE Audio. 2.5% of portable speakers offer this feature.
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Battery life
What it is: The playback time available from one full battery charge.
When it matters: When you need longer playback between charges.

Importance: HIGH

Good value: >= 20 h

12 hours
Audio Pro Addon C5a has a battery life of 12 hours which is longer than that of 47.8% of portable speakers and equal to that of 15.7% of portable speakers.
Battery capacity
What it is: The amount of electrical charge the internal battery can store.
When it matters: When longer untethered playback or power-bank use needs more stored charge.

Importance: HIGH

Good value: >= 5000 mAh

?
Charging time
What it is: The time needed to recharge the battery fully.
When it matters: When the speaker needs to be ready again quickly.

Importance: MEDIUM

Good value: <= 4 h

?
Maximum charging input power
What it is: The maximum charging power the speaker can accept from a compatible power source.
When it matters: When faster charging requires the speaker to accept more input power.

Importance: LOW

Good value: >= 20 W

?
Built-in rechargeable battery
What it is: Indicates whether the speaker uses a battery that can be recharged.
When it matters: When portable use without disposable batteries or continuous mains power matters.

Importance: LOW

Good value: yes

no
Audio Pro Addon C5a does not have a built-in rechargeable battery. 81.4% of portable speakers offer this feature.
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IP rating
What it is: The ingress protection code for dust and water resistance.
When it matters: When dust and water protection need to match the intended environment.

Importance: HIGH

Good value: IP67+

?
Water resistance
What it is: Indicates whether the enclosure can resist water exposure.
When it matters: When the speaker may be used near pools, rain, or splashes.

Importance: MEDIUM

Good value: yes

no
Audio Pro Addon C5a is not water resistant. 61.7% of portable speakers offer this feature.
Dust resistance
What it is: Shows whether the enclosure is protected against dust ingress.
When it matters: When the speaker may be exposed to sand, soil, or dusty environments.

Importance: MEDIUM

Good value: yes

no
Audio Pro Addon C5a is not rated as dust resistant. 51.5% of portable speakers offer this feature.
Waterproof depth rating
What it is: The maximum water depth the speaker is rated to withstand.
When it matters: When the speaker may be submerged or used very close to water.

Importance: MEDIUM

Good value: >= 1 m

?
Drop resistance
What it is: Indicates whether the housing is designed to survive accidental drops.
When it matters: When the speaker may be bumped or suffer an accidental fall during outdoor or travel use.

Importance: LOW

Good value: yes

no
Audio Pro Addon C5a lacks an impact-resistance rating. 32.8% of portable speakers offer this feature.
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On-device controls placement
What it is: The physical area of the speaker where its controls are located.
When it matters: When you want controls that are easy to reach in the speaker intended placement.

Importance: LOW

top
Touchscreen
What it is: Indicates whether a touch-sensitive screen is integrated.
When it matters: When direct visual control is more convenient than buttons or an app.

Importance: LOW

Good value: yes

no
Audio Pro Addon C5a does not have a touchscreen. 0.3% of portable speakers offer this feature.
The speaker does not have an integrated touchscreen.
Smartphone app control
What it is: Shows whether the speaker can be controlled from a phone app.
When it matters: When remote settings, updates, or sound adjustment from a phone matter.

Importance: LOW

Good value: yes

yes
Audio Pro Addon C5a supports smartphone app control. 46.1% of portable speakers offer this feature.
Compatible mobile app provides speaker control or settings.
Remote control
What it is: Indicates whether a dedicated remote control is supplied or supported.
When it matters: When you want to control playback from across the room.

Importance: LOW

Good value: yes

no
Audio Pro Addon C5a does not include a remote control. 15% of portable speakers offer this feature.
No dedicated remote control is documented.
Fast pairing
What it is: Shows whether setup with compatible devices can be completed more quickly.
When it matters: When quick setup with compatible devices matters.

Importance: LOW

Good value: yes

no
Audio Pro Addon C5a does not support fast pairing. 22.5% of portable speakers offer this feature.
No qualifying fast-pair capability; initial pairing is manual or standard.
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Weight
What it is: The total mass of the portable speaker.
When it matters: When carrying the speaker frequently or packing light matters.

Importance: LOW

Good value: <= 1000 g

2,500 g
Audio Pro Addon C5a 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
What it is: The vertical external dimension of the speaker body.
When it matters: When the speaker must fit beneath shelves or in a compact bag.

Importance: LOW

Good value: <= 20 cm

13 cm
Audio Pro Addon C5a has a height of 13 cm which is taller than that of 51.8% of portable speakers and equal to that of 0.6% of portable speakers.
Width
What it is: The side-to-side external dimension of the speaker body.
When it matters: When the speaker must fit a narrow shelf, bag, or tabletop.

Importance: LOW

Good value: <= 25 cm

25 cm
Audio Pro Addon C5a has a width of 25 cm which is wider than that of 69.3% of portable speakers and equal to that of 1% of portable speakers.
Depth
What it is: The front-to-back depth of the speaker housing.
When it matters: When the speaker should take up less front-to-back space.

Importance: LOW

Good value: <= 10 cm

15 cm
Audio Pro Addon C5a has a depth of 15 cm which is deeper than that of 79.2% of portable speakers and equal to that of 1.1% of portable speakers.
Carry options
What it is: The available ways to carry, hang, or attach the speaker.
When it matters: When a handle, strap, or attachment point changes how you carry the speaker.

Importance: LOW

handle
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Companion app name
What it is: The official app used to control settings and functions of the speaker.
When it matters: When app compatibility and the available control features depend on the official app.

Importance: LOW

Audio Pro Control
Firmware updates
What it is: Indicates whether the speaker can receive firmware revisions after purchase.
When it matters: When post-purchase fixes and feature improvements matter.

Importance: LOW

Good value: yes

yes
Audio Pro Addon C5a supports firmware updates. 52.9% of portable speakers offer this feature.
Supports user-accessible firmware updates.
Firmware update method
What it is: The path used to install firmware updates on the speaker.
When it matters: When the convenience and reliability of installing updates matters.

Importance: LOW

OTA; App
Voice assistant support
What it is: Indicates whether the speaker can work with supported voice assistants.
When it matters: When hands-free control through a compatible assistant matters.

Importance: LOW

Good value: yes

yes
Audio Pro Addon C5a supports voice assistants. 73.6% of portable speakers offer this feature.
Supports direct voice-assistant control.
Spotify Connect
What it is: Shows whether Spotify can stream directly to the speaker over the network.
When it matters: When Spotify should stream directly without keeping phone audio active.

Importance: LOW

Good value: yes

yes
Audio Pro Addon C5a supports Spotify Connect. 89.3% of portable speakers offer this feature.
Supports native Spotify Connect.
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Audio Pro Addon C5a vs the average portable speaker

  • 51 mm larger main driver
    Audio Pro Addon C5a has a larger main driver than the average portable speaker (101 mm vs 50.00 mm).
    Primary driver diameter: 101.00 mm.
    What it is: The diameter of each main speaker driver.
    When it matters: When the size of the main driver influences bass reach and output capability.

    Importance: HIGH

    Good value: >= 50 mm

    Audio Pro Addon C5a has a larger main driver than the average portable speaker (101 mm vs 50.00 mm).101.00 mm vs 50.00 mm
  • Supports Wi-Fi connectivity
    Audio Pro Addon C5a supports Wi-Fi connectivity, while the average portable speaker does not support Wi-Fi connectivity.
    What it is: Indicates whether the speaker can connect to wireless local networks.
    When it matters: When direct network streaming or smart multi-room features matter.

    Importance: MEDIUM

    Good value: yes

    Audio Pro Addon C5a supports Wi-Fi connectivity, while the average portable speaker does not support Wi-Fi connectivity.
  • Supports AirPlay
    Audio Pro Addon C5a supports AirPlay, while the average portable speaker does not support AirPlay.
    Supports Apple AirPlay.
    What it is: Indicates whether Apple AirPlay streaming is supported.
    When it matters: When wireless playback from Apple devices and multi-room setups matters.

    Importance: LOW

    Good value: yes

    Audio Pro Addon C5a supports AirPlay, while the average portable speaker does not support AirPlay.
  • Has built-in stereo speakers
    Audio Pro Addon C5a has built-in stereo speakers, while the average portable speaker does not have built-in stereo speakers.
    Provides true stereo output within the unit.
    What it is: Shows whether the device uses separate left and right audio channels.
    When it matters: When true left-and-right channel playback matters without pairing a second speaker.

    Importance: LOW

    Good value: yes

    Audio Pro Addon C5a has built-in stereo speakers, while the average portable speaker does not have built-in stereo speakers.
  • Has an equalizer
    Audio Pro Addon C5a has an equalizer, while the average portable speaker does not have an equalizer.
    Offers user-selectable EQ, tone adjustment, or sound presets.
    What it is: Shows whether the sound balance can be adjusted across frequency ranges.
    When it matters: When you want to adjust bass, midrange, or treble balance.

    Importance: LOW

    Good value: yes

    Audio Pro Addon C5a has an equalizer, while the average portable speaker does not have an equalizer.
  • 20 W more audio output power
    Audio Pro Addon C5a has more audio output power than the average portable speaker (40 W vs 20.00 W).
    Total RMS output: 40.00 W.
    What it is: The maximum continuous power the speaker system can deliver.
    When it matters: When you need enough output to fill a larger or noisier space.

    Importance: HIGH

    Good value: >= 20 W

    Audio Pro Addon C5a has more audio output power than the average portable speaker (40 W vs 20.00 W).40.00 W vs 20.00 W
  • Has a power bank function
    Audio Pro Addon C5a has a power bank function, while the average portable speaker does not have a power bank function.
    What it is: Shows whether the speaker can send power to charge another device.
    When it matters: When the speaker should also charge a phone or another device.

    Importance: LOW

    Good value: yes

    Audio Pro Addon C5a has a power bank function, while the average portable speaker does not have a power bank function.
  • 1 more speaker drivers
    Audio Pro Addon C5a has more speaker drivers than the average portable speaker (3 vs 2).
    Acoustic drivers: 3.
    What it is: The total number of speaker drivers built into the unit.
    When it matters: When fuller driver arrays and broader sound coverage matter.

    Importance: MEDIUM

    Good value: >= 2

    Audio Pro Addon C5a has more speaker drivers than the average portable speaker (3 vs 2).3 vs 2
  • 51 mm larger main driver
    Audio Pro Addon C5a has a larger main driver than the average portable speaker (101 mm vs 50.00 mm).
  • Has built-in stereo speakers
    Audio Pro Addon C5a has built-in stereo speakers, while the average portable speaker does not have built-in stereo speakers.
  • 20 W more audio output power
    Audio Pro Addon C5a has more audio output power than the average portable speaker (40 W vs 20.00 W).
  • 1 more speaker drivers
    Audio Pro Addon C5a has more speaker drivers than the average portable speaker (3 vs 2).
  • Has beamforming microphones
    Audio Pro Addon C5a has beamforming microphones, while the average portable speaker does not have beamforming microphones.
  • 10 Hz deeper bass extension
    Audio Pro Addon C5a has deeper bass extension than the average portable speaker (50 Hz vs 60.00 Hz).
  • Supports Wi-Fi connectivity
    Audio Pro Addon C5a supports Wi-Fi connectivity, while the average portable speaker does not support Wi-Fi connectivity.
  • Supports AirPlay
    Audio Pro Addon C5a supports AirPlay, while the average portable speaker does not support AirPlay.
  • Supports DLNA media sharing
    Audio Pro Addon C5a supports DLNA media sharing, while the average portable speaker does not support DLNA media sharing.
  • Has Ethernet support
    Audio Pro Addon C5a has Ethernet support, while the average portable speaker does not have Ethernet support.
  • Has a power bank function
    Audio Pro Addon C5a has a power bank function, while the average portable speaker does not have a power bank function.
  • Includes a power adapter
    Audio Pro Addon C5a includes a power adapter, while the average portable speaker does not include a power adapter.
  • Has an equalizer
    Audio Pro Addon C5a has an equalizer, while the average portable speaker does not have an equalizer.
  • 2 more adjustable EQ bands
    Audio Pro Addon C5a has more adjustable EQ bands than the average portable speaker (2 vs 0).
  • Supports party mode
    Audio Pro Addon C5a supports party mode, while the average portable speaker does not support party mode.
  • Has a hardware microphone mute switch
    Audio Pro Addon C5a has a hardware microphone mute switch, while the average portable speaker does not have a hardware microphone mute switch.
  • Has a programmable button
    Audio Pro Addon C5a has a programmable button, while the average portable speaker does not have a programmable button.
  • Has a sleep timer
    Audio Pro Addon C5a has a sleep timer, while the average portable speaker does not have a sleep timer.
  • Supports multi-room audio
    Audio Pro Addon C5a supports multi-room audio, while the average portable speaker does not support multi-room audio.
  • Supports Spotify Connect
    Audio Pro Addon C5a supports Spotify Connect, while the average portable speaker does not support Spotify Connect.
  • Supports voice assistants
    Audio Pro Addon C5a supports voice assistants, while the average portable speaker does not support voice assistants.
  • Supports firmware updates
    Audio Pro Addon C5a supports firmware updates, while the average portable speaker does not support firmware updates.

Total
Overall
Audio
Connectivity
Battery
Controls
Smart features
  • 1 Bluetooth levels older
    Audio Pro Addon C5a has an older Bluetooth version than the average portable speaker (4 vs 5.0).
    Bluetooth version: 4.0.
  • Fewer Wi-Fi band options
    Audio Pro Addon C5a lists 2.4 GHz for Wi-Fi bands, while the average portable speaker lists 2.4 GHz/5 GHz.
    Wi-Fi bands: 2.4 GHz.
  • Does not have a built-in rechargeable battery
    Audio Pro Addon C5a does not have a built-in rechargeable battery, while the average portable speaker has a built-in rechargeable battery.
  • Does not have a battery level indicator
    Audio Pro Addon C5a does not have a battery level indicator, while the average portable speaker has a battery level indicator.
  • Is not water resistant
    Audio Pro Addon C5a is not water resistant, while the average portable speaker is water resistant.
  • Is not rated as dust resistant
    Audio Pro Addon C5a is not rated as dust resistant, while the average portable speaker is dust resistant.
  • 5 °C higher minimum operating temperature
    Audio Pro Addon C5a has a higher minimum operating temperature than the average portable speaker (5 °C vs 0 °C).
  • 1,700 g heavier
    Audio Pro Addon C5a is heavier than the average portable speaker (2,500 g vs 800 g).
  • 6.7 cm deeper
    Audio Pro Addon C5a is deeper than the average portable speaker (15 cm vs 8.3 cm).
  • 6.9 cm wider
    Audio Pro Addon C5a is wider than the average portable speaker (25 cm vs 18.1 cm).
  • Is not water resistant
    Audio Pro Addon C5a is not water resistant, while the average portable speaker is water resistant.
    What it is: Indicates whether the enclosure can resist water exposure.
    When it matters: When the speaker may be used near pools, rain, or splashes.

    Importance: MEDIUM

    Good value: yes

    Audio Pro Addon C5a is not water resistant, while the average portable speaker is water resistant.
  • Is not rated as dust resistant
    Audio Pro Addon C5a is not rated as dust resistant, while the average portable speaker is dust resistant.
    What it is: Shows whether the enclosure is protected against dust ingress.
    When it matters: When the speaker may be exposed to sand, soil, or dusty environments.

    Importance: MEDIUM

    Good value: yes

    Audio Pro Addon C5a is not rated as dust resistant, while the average portable speaker is dust resistant.
  • Does not have a built-in rechargeable battery
    Audio Pro Addon C5a does not have a built-in rechargeable battery, while the average portable speaker has a built-in rechargeable battery.
    What it is: Indicates whether the speaker uses a battery that can be recharged.
    When it matters: When portable use without disposable batteries or continuous mains power matters.

    Importance: LOW

    Good value: yes

    Audio Pro Addon C5a does not have a built-in rechargeable battery, while the average portable speaker has a built-in rechargeable battery.
  • 1 Bluetooth levels older
    Audio Pro Addon C5a has an older Bluetooth version than the average portable speaker (4 vs 5.0).
    Bluetooth version: 4.0.
    What it is: The generation of Bluetooth supported by the speaker hardware.
    When it matters: When compatibility and efficiency with newer Bluetooth devices matter.

    Importance: LOW

    Good value: >= 5.0

    Audio Pro Addon C5a has an older Bluetooth version than the average portable speaker (4 vs 5.0).4.0 vs 5.0
  • 5 °C higher minimum operating temperature
    Audio Pro Addon C5a has a higher minimum operating temperature than the average portable speaker (5 °C vs 0 °C).
    What it is: The lowest ambient temperature recommended for normal operation.
    When it matters: When the speaker must work reliably in colder conditions.

    Importance: LOW

    Good value: <= -10 °C

    Audio Pro Addon C5a has a higher minimum operating temperature than the average portable speaker (5 °C vs 0 °C).5 °C vs 0 °C
  • Fewer Wi-Fi band options
    Audio Pro Addon C5a lists 2.4 GHz for Wi-Fi bands, while the average portable speaker lists 2.4 GHz/5 GHz.
    Wi-Fi bands: 2.4 GHz.
    What it is: The wireless frequency bands the speaker can use over Wi-Fi.
    When it matters: When the speaker must connect to both older and newer Wi-Fi networks.

    Importance: LOW

    Good value: 2.4 GHz / 5 GHz

    Audio Pro Addon C5a lists 2.4 GHz for Wi-Fi bands, while the average portable speaker lists 2.4 GHz/5 GHz.2.4 GHz vs 2.4 GHz/5 GHz
  • Does not have a battery level indicator
    Audio Pro Addon C5a does not have a battery level indicator, while the average portable speaker has a battery level indicator.
    What it is: Shows whether the remaining battery level can be displayed clearly.
    When it matters: When you want to know the remaining charge before or during use.

    Importance: LOW

    Good value: yes

    Audio Pro Addon C5a does not have a battery level indicator, while the average portable speaker has a battery level indicator.
  • 1,700 g heavier
    Audio Pro Addon C5a is heavier than the average portable speaker (2,500 g vs 800 g).
    What it is: The total mass of the portable speaker.
    When it matters: When carrying the speaker frequently or packing light matters.

    Importance: LOW

    Good value: <= 1000 g

    Audio Pro Addon C5a is heavier than the average portable speaker (2,500 g vs 800 g).2500 g vs 800 g
Total
Overall
Connectivity
Battery
Durability
Design

Graphic comparison of Audio Pro Addon C5a and other products in the Portable Speakers category

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Third-party reviews

United Kingdom
amazon
4.1
240 Reviews

(Reviews last updated: August 2026)

What customers like about Audio Pro Addon C5a?

  • Excellent, room-filling sound quality with impressive detail and deep bass for its size
  • Premium build quality featuring a solid wood housing, aluminum control panel, and genuine leather handle
  • Stylish and minimalist Scandinavian aesthetic
  • Versatile connectivity options including Wi-Fi multiroom, Bluetooth, AirPlay, Spotify Connect, RCA, and 3.5mm inputs
  • Convenient physical top-panel buttons with four customizable presets for playlists or radio stations
  • Good integration of Amazon Alexa, which accurately captures voice commands even when music is loud

What customers dislike about Audio Pro Addon C5a?

  • No built-in battery, meaning it must remain plugged into a power source despite having a carrying handle
  • The Audio Pro companion app can feel clunky, visually unappealing, or buggy to navigate
  • Initial Wi-Fi setup can be finicky and requires close proximity to the router
  • Lacks native support for Amazon's native Alexa Multiroom grouping feature
  • The far-field microphone is occasionally less sensitive than a dedicated Amazon Echo device
  • No built-in front grille to protect the exposed speaker drivers

Expert reviews

W
whathifi.com
31/01/2019
Summary of the review
Audio Pro Addon C5AGo to product viewer dialog for this item. review | What Hi-Fi?
T
thereviewstudio.co.uk
08/10/2023
Summary of the review
Audio Pro Addon C5A Speaker - The Review Studio
P
pressreader.com
08/01/2020
Summary of the review
Audio Pro Addon C5A - PressReader Would you like me to find video reviews or user guides for the Audio Pro Addon C5a as well?
L
lite-magazin.de
18/01/2022
Summary of the review
Audio Pro A26 – Space-Saving Hi-Fi System with Multiroom and Home Cinema Capabilities (Including Addon C5A Multiroom Review)
(Translated)Show original
H
hifitest.de
14/08/2026
Summary of the review
Technical Specifications Stereo Speakers - Audio Pro Addon C5A
(Translated)Show original
L
lesnumeriques.com
15/05/2018
Summary of the review
Audio Pro Addon C5: best price - Les Numériques
(Translated)Show original
W
whathifi.com
31/01/2019
Summary of the review
Audio Pro Addon C5A review - What Hi-Fi?
(Translated)Show original
A
afdigitale.it
12/03/2019
Summary of the review
Marshall Acton II Voice: Timeless design, but so-so audio
(Translated)Show original
A
afdigitale.it
26/02/2018
Summary of the review
Audio Pro multi-room system: a trio of absolute value
(Translated)Show original

Video reviews

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