Devialet Phantom Reactor 900 Review | 130 Data compared

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  • Avg. price in UK: ~£1,190
  • Avg. price in US: ~$1,350
  • Audio output power: 400.00 W
  • Battery life: ?
  • IP rating: ?
  • Bluetooth version: 4.1
  • Weight: 4300 g

Devialet Phantom Reactor 900 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.

7.1

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%

6.8

Technical Score

20.0%

8.1

User score

Very good
6.8

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%

7.4

Audio

20.0%

7.5

Battery

18.0%

5.0

Durability

16.0%

6.7

Connectivity

8.0%

7.3

Controls

3.0%

6.0

Design

3.0%

7.7

Smart features

Good
8.1

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%

7.9

Popularity

User score:
United States
Amazon_logo.png
4.1
(105)

(Reviews last updated: August 2026)

Excellent
  • 5.9
    Outdoor durability

    Score components:

    40.0%

    4.0

    Water resistance

    25.0%

    ?

    IP rating

    20.0%

    5.4

    Weight

    15.0%

    ?

    Battery life

  • 8.8
    Powerful sound

    Score components:

    45.0%

    10

    Audio output power

    25.0%

    ?

    Battery life

    15.0%

    5.4

    Weight

    15.0%

    10

    Party mode

  • 9.3
    Home listening

    Score components:

    35.0%

    10

    Multi-room support

    30.0%

    10

    Wi-Fi connectivity

    20.0%

    10

    Audio output power

    15.0%

    5.4

    Weight

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Best prices in UK

    N/A~ £1,190

Best rankings

?

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

Verdict

The Devialet Phantom Reactor 900 is an ultra-compact, high-end wireless home speaker measuring 219mm x 157mm x 168mm and weighing 4.3kg. Utilizing proprietary Analog Digital Hybrid (ADH) amplification, it delivers an astonishing 900 watts of peak power and a maximum sound pressure level of 98 dB SPL at 1 meter. Its acoustic engineering features a forward-facing full-range driver combined with side-firing dual woofers in a Heart Bass Implosion (HBI) layout, producing an expansive frequency response from a deep 18Hz infra-bass up to 21kHz treble with zero distortion. Key advantages include its immense, room-filling soundstage, high-resolution audio streaming up to 24-bit/192kHz, and robust connectivity options including Bluetooth, Wi-Fi, AirPlay, Spotify Connect, UPnP, and a hybrid 3.5mm/optical input. However, significant drawbacks include its exceptionally high price point, the lack of built-in smart voice assistant support, a slightly cramped soundstage projection, and the absence of an internal battery, requiring a constant mains power connection which severely limits its actual portability.

Technical Specifications of portable speaker Devialet Phantom Reactor 900

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%

7.4

Audio

20.0%

7.5

Battery

18.0%

5.0

Durability

16.0%

6.7

Connectivity

8.0%

7.3

Controls

3.0%

6.0

Design

3.0%

7.7

Smart features

6.8
Devialet Phantom Reactor 900 has a technical score of 6.84 points, which is higher than 51.4% 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%

7.9

Popularity

User score:
United States
Amazon_logo.png
4.1
(105)

(Reviews last updated: August 2026)

8.1
Devialet Phantom Reactor 900 has a user score of 8.12 points, which is higher than 61.8% 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.
7.9
Devialet Phantom Reactor 900 has a popularity of 7.9 points, which is higher than 62.1% 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%

7.1

Overall score

40.0%

4.2

Price

6.2
Devialet Phantom Reactor 900 has a quality-to-price ratio of 6.2 points, which is lower than 98.8% 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

400.00 W
Devialet Phantom Reactor 900 has an audio output power of 400.00 W which is higher than that of 99.3% of portable speakers and equal to that of 0.1% of portable speakers.
Total RMS output: 400.00 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

30.00 mm
Devialet Phantom Reactor 900 has a driver unit size of 30.00 mm which is smaller than that of 97.8% of portable speakers and equal to that of 0.8% of portable speakers.
Primary driver diameter: 30.00 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
Devialet Phantom Reactor 900 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

1.00 dB
Devialet Phantom Reactor 900 has a frequency response tolerance of 1.00 dB which is lower than that of 95% of portable speakers and equal to that of 5% of portable speakers.
Frequency-response tolerance: ±1.00 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

18.00 Hz
Devialet Phantom Reactor 900 has a lowest frequency of 18.00 Hz which is lower than that of 98.9% of portable speakers and equal to that of 0.1% of portable speakers.
Lower frequency-response endpoint: 18.00 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
Devialet Phantom Reactor 900 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

4.1
Devialet Phantom Reactor 900 supports Bluetooth version 4.1 which is older than that of 71.7% of portable speakers and equal to that of 4.9% of portable speakers.
Bluetooth version: 4.1.
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
Devialet Phantom Reactor 900 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; AVRCP
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
Devialet Phantom Reactor 900 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

?
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
Devialet Phantom Reactor 900 does not have a built-in rechargeable battery. 81.4% of portable speakers offer this feature.
Requires wired mains power and has no built-in rechargeable operating battery.
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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
Devialet Phantom Reactor 900 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
Devialet Phantom Reactor 900 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

0 m
Devialet Phantom Reactor 900 is not rated for underwater use. 47.6% of cameras have a native waterproof depth rating.
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
Devialet Phantom Reactor 900 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

?
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
Devialet Phantom Reactor 900 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
Devialet Phantom Reactor 900 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

?
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
Devialet Phantom Reactor 900 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

4,300 g
Devialet Phantom Reactor 900 weighs 4,300 g which is heavier than that of 87% of portable speakers and equal to that of 0.1% 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

16.8 cm
Devialet Phantom Reactor 900 has a height of 16.8 cm which is taller than that of 64.7% of portable speakers and equal to that of 0.5% 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

15.7 cm
Devialet Phantom Reactor 900 has a width of 15.7 cm which is narrower than that of 59.1% of portable speakers and equal to that of 0.3% 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

16.8 cm
Devialet Phantom Reactor 900 has a depth of 16.8 cm which is deeper than that of 84.4% of portable speakers and equal to that of 0.2% 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

none
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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

Devialet
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
Devialet Phantom Reactor 900 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

no
Devialet Phantom Reactor 900 does not support voice assistants. 26.5% of portable speakers offer this feature.
No direct supported 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
Devialet Phantom Reactor 900 supports Spotify Connect. 89.3% of portable speakers offer this feature.
Supports native Spotify Connect.
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Devialet Phantom Reactor 900 vs the average portable speaker

  • 380 W more audio output power
    Devialet Phantom Reactor 900 has more audio output power than the average portable speaker (400 W vs 20.00 W).
    Total RMS output: 400.00 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

    Devialet Phantom Reactor 900 has more audio output power than the average portable speaker (400 W vs 20.00 W).400.00 W vs 20.00 W
  • 42 Hz deeper bass extension
    Devialet Phantom Reactor 900 has deeper bass extension than the average portable speaker (18 Hz vs 60.00 Hz).
    Lower frequency-response endpoint: 18.00 Hz.
    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

    Devialet Phantom Reactor 900 has deeper bass extension than the average portable speaker (18 Hz vs 60.00 Hz).18.00 Hz vs 60.00 Hz
  • Supports Wi-Fi connectivity
    Devialet Phantom Reactor 900 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

    Devialet Phantom Reactor 900 supports Wi-Fi connectivity, while the average portable speaker does not support Wi-Fi connectivity.
  • 2 dB tighter frequency-response tolerance
    Devialet Phantom Reactor 900 has a tighter frequency-response tolerance than the average portable speaker (1 dB vs 3.00 dB).
    Frequency-response tolerance: ±1.00 dB.
    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

    Devialet Phantom Reactor 900 has a tighter frequency-response tolerance than the average portable speaker (1 dB vs 3.00 dB).1.00 dB vs 3.00 dB
  • 1,000 Hz higher maximum frequency
    Devialet Phantom Reactor 900 has a higher maximum frequency than the average portable speaker (21,000 Hz vs 20,000 Hz).
    Upper frequency-response endpoint: 21000 Hz.
    What it is: The highest audible frequency the speaker can reproduce.
    When it matters: When upper-treble extension and high-frequency detail matter.

    Importance: MEDIUM

    Good value: >= 20000 Hz

    Devialet Phantom Reactor 900 has a higher maximum frequency than the average portable speaker (21,000 Hz vs 20,000 Hz).21000 Hz vs 20000 Hz
  • Supports AirPlay
    Devialet Phantom Reactor 900 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

    Devialet Phantom Reactor 900 supports AirPlay, while the average portable speaker does not support AirPlay.
  • Has an equalizer
    Devialet Phantom Reactor 900 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

    Devialet Phantom Reactor 900 has an equalizer, while the average portable speaker does not have an equalizer.
  • 1 % lower total harmonic distortion
    Devialet Phantom Reactor 900 has lower total harmonic distortion than the average portable speaker (0% vs 1%).
    THD: 0.001%.
    What it is: The amount of unwanted harmonic distortion added to the audio output.
    When it matters: When cleaner sound with less added distortion matters.

    Importance: MEDIUM

    Good value: <= 1%

    Devialet Phantom Reactor 900 has lower total harmonic distortion than the average portable speaker (0% vs 1%).0.001 % vs 1 %
  • 380 W more audio output power
    Devialet Phantom Reactor 900 has more audio output power than the average portable speaker (400 W vs 20.00 W).
  • 42 Hz deeper bass extension
    Devialet Phantom Reactor 900 has deeper bass extension than the average portable speaker (18 Hz vs 60.00 Hz).
  • 2 dB tighter frequency-response tolerance
    Devialet Phantom Reactor 900 has a tighter frequency-response tolerance than the average portable speaker (1 dB vs 3.00 dB).
  • 1,000 Hz higher maximum frequency
    Devialet Phantom Reactor 900 has a higher maximum frequency than the average portable speaker (21,000 Hz vs 20,000 Hz).
  • 1 % lower total harmonic distortion
    Devialet Phantom Reactor 900 has lower total harmonic distortion than the average portable speaker (0% vs 1%).
  • 1 more speaker drivers
    Devialet Phantom Reactor 900 has more speaker drivers than the average portable speaker (3 vs 2).
  • 6 dB SPL higher maximum sound pressure
    Devialet Phantom Reactor 900 has a higher maximum sound pressure level than the average portable speaker (98 dB SPL vs 92.00 dB SPL).
  • 25 ms lower audio latency
    Devialet Phantom Reactor 900 has lower audio latency than the average portable speaker (60 ms vs 85 ms).
  • Supports Wi-Fi connectivity
    Devialet Phantom Reactor 900 supports Wi-Fi connectivity, while the average portable speaker does not support Wi-Fi connectivity.
  • Supports AirPlay
    Devialet Phantom Reactor 900 supports AirPlay, while the average portable speaker does not support AirPlay.
  • Has a TOSLINK optical input
    Devialet Phantom Reactor 900 has a TOSLINK optical input, while the average portable speaker does not have a TOSLINK optical input.
  • Has Ethernet support
    Devialet Phantom Reactor 900 has Ethernet support, while the average portable speaker does not have Ethernet support.
  • Supports AAC Bluetooth audio
    Devialet Phantom Reactor 900 supports AAC Bluetooth audio, while the average portable speaker does not support AAC Bluetooth audio.
  • Wi-Fi standard detailed
    Devialet Phantom Reactor 900 supports Wi-Fi 5 (802.11ac), while the average portable speaker supports Wi-Fi 4 (802.11n).
  • Has an equalizer
    Devialet Phantom Reactor 900 has an equalizer, while the average portable speaker does not have an equalizer.
  • Supports party mode
    Devialet Phantom Reactor 900 supports party mode, while the average portable speaker does not support party mode.
  • Has a sleep timer
    Devialet Phantom Reactor 900 has a sleep timer, while the average portable speaker does not have a sleep timer.
  • Supports multi-room audio
    Devialet Phantom Reactor 900 supports multi-room audio, while the average portable speaker does not support multi-room audio.
  • Supports Spotify Connect
    Devialet Phantom Reactor 900 supports Spotify Connect, while the average portable speaker does not support Spotify Connect.
  • Supports firmware updates
    Devialet Phantom Reactor 900 supports firmware updates, while the average portable speaker does not support firmware updates.
  • 1 fewer microphones
    Devialet Phantom Reactor 900 has fewer microphones than the average portable speaker (0 vs 1).
    Built-in microphones: 0.
  • 20 mm smaller main driver
    Devialet Phantom Reactor 900 has a smaller main driver than the average portable speaker (30 mm vs 50.00 mm).
    Primary driver diameter: 30.00 mm.
  • Does not include a passive radiator
    Devialet Phantom Reactor 900 does not include a passive radiator, while the average portable speaker includes a passive radiator.
  • 0.9 Bluetooth levels older
    Devialet Phantom Reactor 900 has an older Bluetooth version than the average portable speaker (4.1 vs 5.0).
    Bluetooth version: 4.1.
  • Does not have a built-in rechargeable battery
    Devialet Phantom Reactor 900 does not have a built-in rechargeable battery, while the average portable speaker has a built-in rechargeable battery.
    Requires wired mains power and has no built-in rechargeable operating battery.
  • Does not have a battery level indicator
    Devialet Phantom Reactor 900 does not have a battery level indicator, while the average portable speaker has a battery level indicator.
  • Is not water resistant
    Devialet Phantom Reactor 900 is not water resistant, while the average portable speaker is water resistant.
  • Is not rated as dust resistant
    Devialet Phantom Reactor 900 is not rated as dust resistant, while the average portable speaker is dust resistant.
  • Does not provide voice prompts
    Devialet Phantom Reactor 900 does not provide voice prompts, while the average portable speaker provides voice prompts.
    No spoken status prompts; feedback is absent, visual, or tone-based.
  • 3,500 g heavier
    Devialet Phantom Reactor 900 is heavier than the average portable speaker (4,300 g vs 800 g).
  • 8.5 cm deeper
    Devialet Phantom Reactor 900 is deeper than the average portable speaker (16.8 cm vs 8.3 cm).
  • 4.4 cm taller
    Devialet Phantom Reactor 900 is taller than the average portable speaker (16.8 cm vs 12.4 cm).
  • Is not water resistant
    Devialet Phantom Reactor 900 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

    Devialet Phantom Reactor 900 is not water resistant, while the average portable speaker is water resistant.
  • Is not rated as dust resistant
    Devialet Phantom Reactor 900 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

    Devialet Phantom Reactor 900 is not rated as dust resistant, while the average portable speaker is dust resistant.
  • 1 fewer microphones
    Devialet Phantom Reactor 900 has fewer microphones than the average portable speaker (0 vs 1).
    Built-in microphones: 0.
    What it is: The number of microphones built into the speaker.
    When it matters: When voice pickup, calls, or beamforming performance matter.

    Importance: LOW

    Good value: >= 1

    Devialet Phantom Reactor 900 has fewer microphones than the average portable speaker (0 vs 1).0 vs 1
  • 20 mm smaller main driver
    Devialet Phantom Reactor 900 has a smaller main driver than the average portable speaker (30 mm vs 50.00 mm).
    Primary driver diameter: 30.00 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

    Devialet Phantom Reactor 900 has a smaller main driver than the average portable speaker (30 mm vs 50.00 mm).30.00 mm vs 50.00 mm
  • Does not have a built-in rechargeable battery
    Devialet Phantom Reactor 900 does not have a built-in rechargeable battery, while the average portable speaker has a built-in rechargeable battery.
    Requires wired mains power and has no built-in rechargeable operating 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

    Devialet Phantom Reactor 900 does not have a built-in rechargeable battery, while the average portable speaker has a built-in rechargeable battery.
  • Does not include a passive radiator
    Devialet Phantom Reactor 900 does not include a passive radiator, while the average portable speaker includes a passive radiator.
    What it is: Shows whether passive radiators are used to reinforce bass output.
    When it matters: When enhanced bass response from a compact enclosure matters.

    Importance: LOW

    Good value: yes

    Devialet Phantom Reactor 900 does not include a passive radiator, while the average portable speaker includes a passive radiator.
  • 3,500 g heavier
    Devialet Phantom Reactor 900 is heavier than the average portable speaker (4,300 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

    Devialet Phantom Reactor 900 is heavier than the average portable speaker (4,300 g vs 800 g).4300 g vs 800 g
  • Does not have a battery level indicator
    Devialet Phantom Reactor 900 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

    Devialet Phantom Reactor 900 does not have a battery level indicator, while the average portable speaker has a battery level indicator.

Graphic comparison of Devialet Phantom Reactor 900 and other products in the Portable Speakers category

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Third-party reviews

United States

(Reviews last updated: August 2026)

What customers like about Devialet Phantom Reactor 900?

  • Incredible bass response and depth for an ultra-compact enclosure
  • Massive power output capable of easily filling a room without distortion
  • Futuristic, iconic, and visually distinct aesthetic design
  • Excellent physical build quality using high-end, heavy-duty materials
  • Clean, detailed sound representation at low listening volumes
  • Diverse streaming support including AirPlay, Spotify Connect, and UPnP

What customers dislike about Devialet Phantom Reactor 900?

  • Extremely expensive compared to other compact wireless speakers
  • Narrow soundstage and cramped imaging when used as a single mono speaker
  • Buggy software app with slow response times and lack of EQ adjustment
  • Occasional connectivity drops and playback issues requiring full factory resets
  • Not truly portable due to the lack of a built-in battery and heavy weight
  • Slightly thin midrange and a sound signature that can lean cooler or emotionally distant

Expert reviews

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wired.com
09/01/2019
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expertreviews.co.uk
08/02/2019
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pocket-lint.com
08/02/2019
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trustedreviews.com
15/02/2019
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gearpatrol.com
22/02/2019
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soundstagesimplifi.com
15/08/2019
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audiosciencereview.com
18/11/2019
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techradar.com
17/08/2021
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hifi.com.sg
15/04/2020
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stuff.tv
14/01/2019
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C
computerbild.de
09/04/2019
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chip.de
09/04/2019
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audiovision.de
05/11/2019
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welt.de
20/02/2019
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stereo.de
Ohne Datum
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leclaireur.fnac.com
09/03/2019
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lesnumeriques.com
09/07/2019
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clubic.com
10/03/2021
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leclaireur.fnac.com
21/05/2019
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O
on-mag.fr
26/11/2019
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hifi.nl
15/12/2018
Summary of the review

Video reviews

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