The Uniti Atom Headphone Edition is a headphone amplifier by Naim. It was released in May 2021. It has a built-in DAC, so you can play digital sources directly with no separate DAC unit needed. The Uniti Atom Headphone Edition has an MSRP of $3,799.
Performance Specs
The Uniti Atom Headphone Edition drives headphones rather than loudspeakers, so its power is quoted into headphone impedances instead of into 8 ohms: 1.5 W RMS per channel into 16 ohms; suitable for headphones from 16 ohms upwards.
Here are the main highlights of its performance specs:
Inputs and Outputs
Besides the performance specs of the Uniti Atom Headphone Edition, the next important feature set that you have to evaluate is the input and output selections that it offers.
Uniti Atom Headphone Edition has total of 1 Analog inputs .
Inputs
- Total Number of Analog Inputs: 1
Outputs
- Preamp Outputs
- Balanced XLR Output
- 1/4 Headphone Output
Bluetooth Connectivity
Uniti Atom Headphone Edition features built-in Bluetooth for wireless music streaming from your Bluetooth-enabled devices such as Apple iPod/iPhone/iPad, Android smartphone/tablet, Windows PC, Mac computers/laptops.
Among the amps in the same price range, these are the 5 amps that have Bluetooth Connectivity:
Balanced connections
Uniti Atom Headphone Edition has a balanced XLR output. A balanced cable carries the signal twice, on two conductors of opposite polarity. Interference picked up along the way lands on both equally and cancels when the two are recombined at the far end, so the longer the cable run and the noisier the surroundings, the more the connection is worth. On a headphone output the other benefit is separation: a balanced connector gives each channel its own return conductor instead of the two sharing a common ground, which lowers crosstalk between left and right. Whether a balanced connection also yields more power depends on how the amplifier is built inside - some are balanced end to end, others convert to single-ended internally and deliver the same power either way, so it is worth reading the maker's own wording rather than assuming.
DAC and Digital Music
The Uniti Atom Headphone Edition's built-in DAC allows the connection of digital sources directly, eliminating the need for an external DAC.
Uniti Atom Headphone Edition Pros and Cons
Drawn from the published figures on this page, not from listening.
- ✓Delivers 1,500 mW into 16 ohms, comfortably more than most headphones need.
- ✓A preamp output means it can also feed active speakers or a power amplifier, so it is not limited to headphone listening.
- ✓A built-in DAC takes a digital source directly, with no separate converter to buy or find space for.
- ✗It has no speaker terminals - this drives headphones, not loudspeakers.
Uniti Atom Headphone Edition External Dimensions and Weight
Uniti Atom Headphone Edition has external dimensions of (H x W x D) 3-3/4 x 9-5/8 x 10-7/16 inch (95 x 245 x 265 mm ). The unit weighs
7 kg (15.4 lbs).
Base Surface Area
Base surface area of an integrated amplifier may become an important decision factor when the space in your room or desk is limited.
The base area of the Uniti Atom Headphone Edition is approximately 649.3cm2 / 100.6inch2.
- Width: 245.0mm (9-5/8")
- Height: 95.0mm (3-3/4")
- Depth: 265.0mm (10-7/16")
- Weight: 7 kg (15.4 lbs)
- Base Surface Area: ~649.3cm2 / 100.6inch2
- Volume: ~6.2 liter / 1.6 gallon
| General |
| Brand |
Naim |
| Full Model Name |
Naim Uniti Atom Headphone Edition |
| Release Date |
May 2021 |
| Amplifier Type |
Headphone Amplifier |
| Amplifier Technology |
Solid State |
| Performance |
| Headphone Output Power |
1.5 W RMS per channel into 16 ohms; suitable for headphones from 16 ohms upwards |
| Output Impedance |
N/A |
| Frequency Bandwidth |
|
| THD |
|
| Signal to Noise Ratio |
N/A |
| Digital Music |
| Built-in DAC |
Yes |
| Bluetooth |
Yes |
| WiFi |
Yes |
| Ecosystem |
| Apple AirPlay |
|
| Apple AirPlay2 |
Yes |
| DTS Play-Fi |
|
| Chromecast built-in |
Yes |
| Roon |
Roon Ready |
| HEOS |
|
| BluOS |
|
| CONNECTIONS |
| Total Analog Inputs |
1 |
| Preamp Outputs |
Yes |
| Balanced XLR Output |
Yes |
| Headphone Output |
1/4 |
| Removable Power Cord |
|
| PHYSICAL SPECS |
| Height |
95.0mm (3-3/4") |
| Width |
245.0mm (9-5/8") |
| Depth |
265.0mm (10-7/16") |
| Weight |
7 kg (15.4 lbs) |
| OTHER |
| Parts Warranty |
|
| Labor Warranty |
|