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NAIM Uniti Atom Headphone Edition

Relax at home, without distractions thanks to Uniti Atom's all in one Dac/Amp design and NAIM’s exclusive built-in direct streaming platform.

Headphone outputs are 6.35mm (unbalanced), 4.4mm (balanced) and a 4-pin XLR (balanced) on the back panel.

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Our Take

Transform any space into your own Audio Cocoon

Typical headphone amplifiers demand tethering to a computer, the Uniti Atom Headphone Edition however, has all the brains and Naim’s exclusive streaming platform all built in allowing you freedom from a traditional hard wired source. The headphone-optimized version of the multi-award-wining Uniti Atom also features Balanced 4-pin XLR and 4.4mm (Pentaconn) outputs; 6.3mm output, plus is compatible with an array of headphones – we suggest Focal as the perfect partner. Offering yet more flexibility, you can keep up to three headphones plugged in and switch sets depending on what you’re listening to and when.

Uniti Atom Headphone Edition is a class-A amplifier that runs into class-AB when the going gets exciting. For example, when driving a 600Ω impedance headphone at full volume, the headphone amplifier will remain in class-A. At 300Ω at full volume the headphone amplifier will remain in class-A for all output except the last few decibles. As the impedance of the headphones drops then the point at which it slides out of class-A gets lower. Dropping to 32Ω it will be pure class-A until approximately 3.2mW and then seamlessly and transparently glide into class-AB for the remaining top 25dB.

Then when you want to listen out loud simply add active speakers, or a power amplifier and speakers – for an instant system. Uniti Atom also excels as a compact streaming pre-amplifier.

Our Take

Easy App control – in one room or many

The Naim App – available for Apple and Android devices – makes it simple to control your Uniti Atom Headphone Edition, and even link up other music systems around your home into a stunning multi-room set-up. Use the App to access all your music, including your favorite radio stations, streaming services and playlists, and explore artist discographies and biographies.

Uniti Atom Headphone Edition works seamlessly with other Naim streaming products, including Mu-so systems. Choose the same song in beat-perfect sync or play different music in different rooms. You can also pair Uniti Atom Headphone Edition with other AirPlay 2-compatible wireless speakers via the Apple Home app, or with other Chromecast built-in devices via the Google Home app.


• Network: Ethernet (10/100Mbps)& WiFi (802.11 b/g/n/ac with internal antennae)

• Digital Input: 2x Optical S/PDIF up to 96kHz, Coaxial RCA (up to 24bit/192kHz, DoP 64Fs)

• Analogue: 1 x Stereo RCA Input pair

• USB Input: 2x USB 2.0 (Type A connector)

• Streaming: Apple AirPlay 2, Chromecast Built-in, UPnPTM, Spotify® Connect, TIDAL, Roon Ready, Bluetooth, Internet Radio, Qobuz

• Pure Class A Pre-Amp Functionality

• Balanced XLR Preamp output

• RCA Preamp output

Technical Specs

Headphone Outputs
4.4mm Pentaconn (balanced) 4 pin XLR (balanced) 6.35mm (¼ inch) jack (unbalanced)

1.5W RMS Class per channel into 16ohms / Switch to Class AB above 3.2W total across both channels

Power Consumption
17W Typical

Mains Supply
115V, 230V; 50 or 60Hz

Dimensions (including connectors)
(H)3.9" x (W)9.65" x (L)10.43"

~15.5 lbs



About NAIM

Founded in 1973 with the belief that the exploration of sound is an adventure, every product is conceived, designed and engineered entirely in service of the sound. Revealing a pure experience of music that is as close as possible to its original live source that rewards you with a clarity and connection that becomes more powerful the deeper you travel within it.