Naim has revealed its most ambitious all-in-one yet. The Mu-so Utopia, developed with sister brand Focal, packs 720 watts, 15 drivers and Dolby Atmos into a single box with HDMI eARC. What makes it interesting for WooferGuy readers is a detail that’s easy to miss: it has a dedicated subwoofer output. Here’s what we know, including a price discrepancy worth checking.
- All-in-one streaming system with Dolby Atmos, HDMI eARC and optical input.
- 720 W total across 15 drivers, including three 6 × 3-inch woofers and four upward-facing drivers.
- Has a stereo RCA subwoofer output, so you can add a sub.
- Focal’s ADAPT room tuning works from distances you enter in the app.
- Launch coverage says it reaches retailers in January 2027. Reported prices: £4,499 in the UK, and $5,500 or $6,500 in the US depending on the source.
Drivers and power
Naim’s spec sheet splits the 720 watts across four driver groups. Coverage of the launch describes it as a 7.1.2-channel design.
| Driver group | Count and size | Amplification |
|---|---|---|
| Woofers (front) | 3 × 6 × 3-inch | 3 × 84 W |
| Midrange (front) | 2 × 2.75-inch “W” cone | 2 × 42 W |
| Tweeters (front) | 2 × 1-inch PRISM | 2 × 24 W (Class AB) |
| Full-range (sides and top) | 8 × 1.5 × 2.75-inch | 8 × 42 W |
The box measures 100 × 11.8 × 29.5 cm (about 39 × 4.6 × 11.6 inches) and weighs 14.1 kg. Connections are HDMI eARC with CEC, an optical input up to 24-bit/96 kHz, and one RCA pair marked for a subwoofer. Streaming covers AirPlay, Google Cast, Bluetooth, Spotify, TIDAL, Qobuz and Presto Music, with control through the Focal & Naim app. Sound modes include Dolby Movie and Dolby Music, plus several “Sphere” modes for music, film, gaming and podcasts, each with a night option.
Why the subwoofer output matters
Three small oval woofers in a slim cabinet can produce full, satisfying bass for music at sensible levels, but physics limits how much air they can move. Deep effects in films, organ notes and electronic music live in the bottom octave, below about 40 Hz, and that’s where a single-box system runs out of room. A sub output means you can add a proper subwoofer later instead of replacing the whole system.
What Naim hasn’t detailed yet is how the output is managed: whether the app lets you set the crossover frequency, adjust phase or delay, and whether it high-passes the internal woofers when a sub is connected. Those controls decide how well a sub blends. Until that’s clear, plan to set the crossover on the subwoofer itself. Our crossover settings guide and phase guide explain how. A fast, sealed sub suits a music-first system like this; see our subwoofers for music picks.
Price and availability: check before you budget
Reports don’t agree on the US price. What Hi-Fi? lists it at £4,499 / $5,500. CE Pro and Wifi Hifi both report $6,500 (CAD 8,500) and January 2027 availability through Focal Powered by Naim retailers. Naim’s own product page doesn’t list a price. Ask your dealer for the final figure before you commit.
What it means for you
- Want one box for music and TV? This is one of the few premium all-in-ones that also leaves room to add a sub.
- Already own a good sub? The RCA output means you can keep it, but wait for details on crossover control.
- Mainly watching films? At this price, a soundbar system with a dedicated sub, or separate speakers and an AV receiver, will usually deliver more bass for the money.
Our take
On paper, the Mu-so Utopia is a serious music system that also handles TV, and its sub output is a thoughtful addition many lifestyle speakers leave out. We’d want to know how the bass management works and what it really costs in the US before recommending it. We’ll follow up when it reaches stores.