Naim NDX 2/XPS DR Music Streamer and PSU

Music servers and computer audio
Naim Audio NDX 2,
Naim Audio NDX 2/XPS DR

I also contrasted the NDX 2 with and without the XPS DR power supply, it sounds very good indeed without the supply but the extra control that the XPS DR brings does give everything more power, weight, and authority. Dynamics benefit from this and bass lines have a solidity that brings substance to the whole picture. It’s not essential and I enjoyed the streamer with its onboard supply for some time before adding the XPS DR: however, going back proved to be a less enjoyable experience. I’m told that the 555 PS represents a considerably bigger jump but it costs £2,600 more so you’d want a decent result even in the high-end world of diminishing returns. 

The combination tested here gets to the heart of the music in a fashion that is impossible to ignore thanks to the immediacy and detail resolution that goes with it. Naim understands that music like art is more than an aesthetic experience; you can only enjoy the sound for so long, it’s the musical message that makes listening so rewarding. Strangely, Naim is in a pretty select club in this regard, presumably because this has always been their ethos and because their engineers know how to achieve such a difficult to define goal. They have certainly scored with the NDX 2 and XPS DR... back of the net, so to speak.



Type: Solid-state network streamer, DAC

Analogue Inputs: none

Digital Inputs: Two coaxial S/PDIF (via RCA and BNC jacks), two TOSLink, USB A for stored audio/MP3 player

DAC Resolution/Supported Digital Formats: FLAC/AIFF/WAV/ALAC/DSD etc. Sampling rate for D/A conversion up to 384kHz/32 bit, DSD128

Music services/Wi-Fi inputs: Spotify Connect, Tidal, Chromecast, Bluetooth, Airplay, Roon

Analogue Outputs: One stereo unbalanced (via RCA connectors), one stereo unbalanced (via DIN jack)

Digital Outputs: One coaxial S/PDIF (via BNC jack)

Frequency Response: Not specified

Distortion (THD + Noise): Not specified

Supplied with: Power-Line Lite mains cable, DIN to DIN interconnect

User Interface: 5inch TFT display (on main unit), Naim application software for iOS, Android

Dimensions (H×W×D): 87 ×432 ×314mm

Weight: 10kg

Price: £4,999


Type: Linear add on power supply

Power outputs: ± 22V, ± 10V, 2 ×15V

Supplied with: Burndy cable.

Dimensions (H×W×D): 87 ×432 ×314mm

Weight: 15.1kg

Price: £3,999

Manufacturer: Naim Audio

Tel: +44 (0) 1722 426600


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