Focal Mu-so Hekla review
The Focal Mu-so Hekla is a wireless speaker in soundbar's clothing, featuring superbly detailed, sizable sound, a stunning build and a jumbo price. Although the manufacturer insists it is not a soundbar, it connects via eARC and shares physical proportions with traditional home theater audio bars.
Named after one of Iceland’s active stratovolcanoes, the device has been released under the Focal brand rather than Naim, reflecting a slight shift in brand positioning for the high-end audio line.
At 4.65 x 39.37 x 11.61 inches, the Hekla is proportioned like a soundbar. Compatibility with Dolby Atmos, side- and up-firing drivers, and an HDMI eARC socket further reinforce its home cinema capabilities.
Branded under Focal because of the French company's strong reputation in the home cinema market, official marketing materials frequently reference the device as an immersive home cinema system.
Design and Build
Beyond minor identity quirks, the Focal Mu-so Hekla remains an intriguing device. Its black aluminum casing features anodized and shot-blasted aluminum heatsinks for visual drama, alongside an impeccable overall build standard.
Users familiar with previous Naim Mu-so generations will find the aesthetic familiar, including the trademark oversized control dial that has characterized Naim equipment for years.
The cabinet houses 15 individual speaker drivers powered by a total of 660 watts of Naim-designed Class D amplification. The front array features three bass drivers, two midrange drivers, and two tweeters.
Additional full-range drivers on the sides and top facilitate a 7.1.2-channel spatial audio layout with a stated frequency response ranging from 30Hz to 20kHz.
Connectivity and Features
Audio inputs include a digital optical port and an HDMI eARC socket on the rear panel, alongside a pre-out connector for adding an external subwoofer.
Dual-band Wi-Fi 6 integration enables support for Qobuz, Spotify, and TIDAL streaming services, alongside Apple AirPlay 2, Google Chromecast, UPnP, internet radio, and Bluetooth 5.1.
The system handles high-resolution audio formats up to 32bit/384kHz and DSD128 for two-channel playback, and up to 24bit/192kHz for multichannel spatial audio content.
While the illuminated control dial handles basic functions, granular configuration is managed through the dedicated Focal & Naim control app available for Android and iOS.
The application provides access to spatial audio modes including Dolby Movie, Dolby Music, Dolby Night, and proprietary Sphere Movie and Sphere Music settings.
Sphere settings are tailored for smaller treated rooms, whereas Dolby alternatives are optimized for larger, untreated spaces.
Users can further customize output via a three-band EQ, sliders for height and surround effects, and individual channel level trims for the 7.1.2 layout.
Spatial audio processing remains permanently active; the system utilizes all 15 drivers regardless of whether the incoming source material is traditional stereo or native Dolby Atmos.
Combined with built-in room-correction routines, the algorithms aim to optimize the audio output for any given listening space.
The control application also manages playback, input selection, radio station shortcuts, and the ADAPT room correction calibration process.
Additional software features include dial brightness adjustments, firmware updates, and multi-room integration supporting up to 32 individual Focal or Naim streamers.
Audio Performance
When fed high-quality native Dolby Atmos sources, the Mu-so Hekla establishes itself as one of the most successful one-box spatial audio solutions available.
The source review notes that the speaker delivers a lively, robust, and exceptionally spacious presentation across various listening conditions.
The soundstage extends well beyond the physical dimensions of the cabinet, offering impressive width and height while confidently steering audio effects across the room.
Spatial separation is handled effectively, maintaining cohesion without sounding remote, resulting in unified and immersive movie soundtracks and music mixes.
Tonally, the system maintains an even-handed and natural approach across the frequency spectrum, with only a slight bass bloom at the lower end.
Low frequencies are controlled and detailed, providing strong rhythm expression, attack, and decay.
Treble reproduction reveals fine detail without becoming harsh or edgy at elevated playback volumes.
Midrange balance is well-judged, offering articulation for spoken and sung vocals while clearly conveying timbre and breath control.
Vocals project clearly and dialogue remains distinct even amidst chaotic action sequences.
The speaker boasts generous dynamic headroom, handling stark transitions between quiet passages and loud cinematic explosions with ease.
Symphonic peaks and sudden acoustic shifts are rendered with notable clarity and impact.
Focal Mu-so Hekla review: Price & release date
The unit launched in selected Asian markets at the end of 2025.
Global availability expanded starting in late March 2026.
The Focal Mu-so Hekla rolled out across global markets following its initial regional launch.
Pricing is set at £2,999 in the United Kingdom, $3,599 in the United States, and AU$6,499 in Australia.
Buy it if...
You want a powerful spatial audio experience without setting up multiple physical speakers, though it still cannot match a dedicated multi-speaker surround sound array.
You subscribe to top-tier music streaming services and want to enjoy music mixed in Dolby Atmos.
You appreciate high-end industrial design that functions as a sophisticated statement piece in your living space.
Don't buy it if...
You are seeking alternatives, as the Focal represents the finest single-box spatial audio performance available at this price point.
You prefer listening to standard two-channel stereo tracks without spatial processing applied, as the system continually utilizes its full driver array.
You want a conventional soundbar, given that Focal positions the device as an all-in-one home cinema and music system.
Focal Mu-so Hekla review: Also consider
The Bang & Olufsen Beosound Premiere offers a high-end, ostentatious alternative for buyers looking for an uncompromised soundbar experience.
The McIntosh RS250 provides a powerful wireless all-in-one audio system featuring analog VU meters, though it lacks spatial audio capabilities.
