Meet the Devialet Phantom Ultimate 108dB
The Devialet Phantom Ultimate 108dB is the flagship of Devialet's Phantom I range, and it condenses a full high end system into a single sculptural enclosure. This is a fully active wireless speaker, which means the amplification, the DAC and the streaming platform all live inside the cabinet. You do not add a separate amplifier, external DAC or standalone streamer. You connect it to your network, choose your music and let it play.
What sets this model apart is the sheer output on tap. It delivers up to 108dB SPL at one meter, driven by 1100W RMS of Devialet's ADH (Analog Digital Hybrid) amplification. That headroom is not about constant volume, it is about effortless dynamics and control even when the music gets demanding.
The Devialet Design and Technology
ADH is Devialet's signature. It marries the linearity of an analog amplifier with the efficiency of a digital one, so the Phantom can generate huge power inside a compact chassis while staying composed. On top of that sits SAM (Speaker Active Matching), Devialet's processing that tailors the signal to the physical behavior of the drivers so the speaker reproduces the source recording faithfully.
The driver array in the 108dB is fully realized. A Grade 1 titanium tweeter handles the highs, an aluminum medium driver takes the midrange, and lateral aluminum bass drivers deliver Heart Bass Implosion (HBI), Devialet's approach that pressurizes the two opposing bass drivers to reach deep, physical low frequencies with almost no cabinet vibration. The result is a stated frequency response of 14Hz to 27kHz, which reaches well below what most compact speakers even attempt.
Streaming and connectivity
The Phantom Ultimate 108dB is built for modern listening. It supports AirPlay 2, Spotify Connect, Roon Ready and UPnP, along with Wi-Fi and Bluetooth. For a wired source there is an optical input. You manage everything, including mono, stereo pair and multiroom setups, through the Devialet app.
Sound Character and Ideal Room
The sonic signature here is clean, dynamic and physically present. The titanium tweeter keeps the treble precise and detailed, the aluminum midrange stays articulate with voices and instruments, and HBI delivers bass you feel as much as hear. Because of the extra headroom, the 108dB stays effortless in larger, livelier spaces where a lower output speaker would be working hard.
Think open plan living rooms, larger listening rooms, and any space where you want full range sound to fill the room with authority. A single unit already produces a wide, room filling image, and a stereo pair opens up staging and separation for a true left and right presentation.
Where It Sits in the Range
Within the Phantom I family, the difference between models comes down to output and driver material. The Devialet Phantom Ultimate 98dB reaches up to 98dB SPL and suits small to medium rooms and nearfield listening beautifully. The Phantom Ultimate 108dB steps up to 1100W, up to 108dB SPL and the Grade 1 titanium tweeter, so it offers more headroom for larger rooms and higher volumes. If you want the fullest expression of the Phantom concept, the 108dB is the top of the range.
Setup and Pairing Thoughts
Getting started is simple. Power, network, app, done. From there, thoughtful mounting elevates both the aesthetics and the sound.
- Tree Phantom Ultimate 108dB is the dedicated floor stand, ideal for placing the speaker at ear height in a fixed listening spot.
- Treepod Phantom Ultimate 108dB is a tripod stand that offers a more flexible, studio style footprint.
- Gecko Phantom Ultimate 108dB is the wall mount for a clean, space saving installation.
- Devialet Phantom Remote adds tactile control for volume, play and pause without reaching for your phone.
Each of these accessories is sized specifically to the Phantom Ultimate 108dB. They make no sound on their own; they complete the setup physically and ergonomically. And to be clear, none of them replaces or requires an amplifier, because the Phantom already has one built in.
Single or stereo pair
A single Phantom Ultimate 108dB is a complete, room filling system on its own and a great starting point. If you value precise stereo imaging and a wider soundstage, a matched pair configured in the app delivers dedicated left and right channels. Many listeners begin with one and add a second later, since the app makes pairing straightforward.
How It Compares to Other Active Speakers
All of these are active, streaming capable speakers, and the right one depends on your goals. The Klipsch The Nines II, The Sevens II and The Fives II are powered stereo pairs with a horn loaded design and a traditional bookshelf form, well suited to desktop and shelf placement with a classic two speaker layout. The Cambridge Audio L/R X and the more compact Cambridge Audio L/R M pair active amplification with built in streaming in a stereo pair format for a tidy all in one system.
The Phantom Ultimate 108dB takes a different design path. It is a single sculptural enclosure with lateral HBI bass and very high output from one cabinet, which makes it distinctive if you want maximum performance and physical bass from a compact, monolithic form, whether solo or as a pair. Which approach fits you is a matter of room, layout and preference.
Frequently Asked Questions
What is the Devialet Phantom Ultimate 108dB?
The Devialet Phantom Ultimate 108dB is the flagship of Devialet's Phantom I range, and it condenses a full high end system into a single sculptural enclosure. This is a fully active wireless speaker, which means the amplification, the DAC and the streaming platform all live inside the cabinet. You do not add a separate amplifier, external DAC or standalone streamer. You connect it to your network, choose your music and let it play.
How is the Devialet Phantom Ultimate 108dB designed and built?
ADH is Devialet's signature. It marries the linearity of an analog amplifier with the efficiency of a digital one, so the Phantom can generate huge power inside a compact chassis while staying composed. On top of that sits SAM (Speaker Active Matching), Devialet's processing that tailors the signal to the physical behavior of the drivers so the speaker reproduces the source recording faithfully.
What does the Devialet Phantom Ultimate 108dB sound like?
The titanium tweeter keeps the treble precise and detailed, the aluminum midrange stays articulate with voices and instruments, and HBI delivers bass you feel as much as hear. Because of the extra headroom, the 108dB stays effortless in larger, livelier spaces where a lower output speaker would be working hard. Think open plan living rooms, larger listening rooms, and any space where you want full range sound to fill the room with authority. A single unit already produces a wide, room filling image, and a stereo pair opens up staging and separation for a true left and right presentation.
Where does the Devialet Phantom Ultimate 108dB sit in the range?
Within the Phantom I family, the difference between models comes down to output and driver material. The Devialet Phantom Ultimate 98dB reaches up to 98dB SPL and suits small to medium rooms and nearfield listening beautifully. The Phantom Ultimate 108dB steps up to 1100W, up to 108dB SPL and the Grade 1 titanium tweeter, so it offers more headroom for larger rooms and higher volumes.
How does the Devialet Phantom Ultimate 108dB compare to the alternatives?
All of these are active, streaming capable speakers, and the right one depends on your goals. The Klipsch The Nines II , The Sevens II and The Fives II are powered stereo pairs with a horn loaded design and a traditional bookshelf form, well suited to desktop and shelf placement with a classic two speaker layout.
Come Listen
AEA is an authorized Devialet dealer with a showroom in Timonium, Maryland. Demo units rotate, so if you would like to hear the Phantom Ultimate 108dB or need help choosing between a single unit and a stereo pair, or selecting the right stand, please contact AEA and we will be glad to arrange a listen and guide you.