Naim
Naim Audio Uniti Atom HDMI | All-in-One Player | Martins Hi-Fi UK
Naim Audio Uniti Atom HDMI | All-in-One Player | Martins Hi-Fi UK
In stock
Naim Audio Uniti Atom HDMI Streaming Amplifier
The Uniti Atom is the compact model in Naim's Uniti range — a streaming amplifier in a smaller, square-format chassis that puts AirPlay 2, Chromecast, Roon Ready, TIDAL, Qobuz, and Spotify Connect into a box 245mm wide and 265mm deep. The HDMI version adds HDMI ARC to the input set, making it compatible with a television set in a way the earlier Atom was not. At 40W per channel into 8Ω, it is appropriate for most bookshelf and compact floorstanding loudspeakers, and for rooms of typical size.
The Atom is a genuine Naim product — not a stripped-down version with lesser components than the larger Uniti models. The streaming platform is the same, the analogue circuit approach is the same, and the build quality is the same. What is smaller is the chassis and the output power.
Streaming
AirPlay 2, Bluetooth, Chromecast, TIDAL, Qobuz, Spotify Connect, Roon Ready, UPnP, and internet radio are all supported. Audio format support extends to WAV at 32bit/384kHz, FLAC and AIFF at 24bit/384kHz, ALAC at 24bit/384kHz, and DSD 64 and 128Fs. Network is via Wi-Fi or Ethernet. Control is through the Focal and Naim app or via the front panel display and rotary control.
Inputs
Analogue input: one stereo RCA pair. Digital inputs: two optical TOSLink (24bit/96kHz), one coaxial RCA (24bit/192kHz), and HDMI ARC for television connection. USB Type-A for local audio playback.
Outputs
Speaker outputs via the internal 40W Class-AB power amplifier. A sub/pre RCA output is provided for adding a subwoofer or a power amplifier. A 3.5mm headphone jack is on the front panel.
Technical Specifications
| Power output | 40W per channel @ 8Ω, 0.1% THD+N, Class-AB |
| Analogue input | 1 × Stereo RCA |
| Digital inputs | 2 × Optical TOSLink (24bit/96kHz); 1 × Coaxial RCA (24bit/192kHz); HDMI ARC |
| Outputs | Stereo power amplifier; 1 × RCA sub/pre output; 1 × 3.5mm headphone jack |
| Streaming protocols | AirPlay 2, Bluetooth, Chromecast, Internet Radio, Qobuz, Roon Ready, Spotify Connect, TIDAL, UPnP |
| Network | Wi-Fi; Ethernet |
| Audio formats | WAV 32bit/384kHz; FLAC/AIFF/ALAC 24bit/384kHz; DSD 64/128Fs; MP3, AAC, OGG, WMA, M4A |
| Dimensions (W × H × D) | 245mm × 95mm × 265mm |
| Weight | 7kg |
Who Is It For?
The Uniti Atom HDMI is for two types of listener: those who want a compact Naim streaming system for a bedroom, study, or smaller room; and those who want a capable streaming amplifier that can also handle television audio via HDMI ARC without a separate soundbar or AV receiver. It is the tidiest way to combine genuine hi-fi with television listening in a single box.
At 40W per channel, it is best matched with loudspeakers of reasonable sensitivity — 87dB and above — in rooms where the listening distance is not extreme. For those who later want more power, the RCA output allows a power amplifier to be added without replacing the Atom itself.
Buying from Martins Hi-Fi
The Uniti Atom is the entry point to the Naim Uniti range and a complete hi-fi system for the right room. Martins Hi-Fi has the Uniti range on demonstration and can pair the Atom with loudspeakers across a range of prices to help you find the right match. We have been selling hi-fi since 1968 and know the Naim range thoroughly.
When you get in touch, you'll be speaking with Dave, Chris and Tim at info@martinshifi.co.uk, call 01603 627010, or WhatsApp on 07554 687137. You can read more about how we work on our Why Martins page. We are at 85–91 Ber Street, Norwich, NR1 3EY.
