Assistance

Cleaning the Front Display Screen of the ND555 should be done with the cloth supplied in the box. No other cleaning substances should be used.

Yes the ND555 has a separate DAC for each channel.

ND555 can be upgraded with Super Lumia interconnect or a second 555PS.

Select the default position unless the product is connected in a hi-fi system incorporating another earthed source component, or mains ‘hum’ is audible through the loudspeakers.

Pressing the Brightness button toggles through 4 different illumination states.

Dimensions 87mm (H) x 432mm (W) x 314mm (D) Weight 13kg Connectivity Ethernet (10/100Mbps), WiFi (802.11b/g/n/ac with external antennae) Multiroom Audio UPnPTM Serving Party Mode Streaming  Sync up to six Uniti all-in-one players or other Naim streamers and control via the Naim app. Audio formats WAV up to 32bit/384kHz FLAC & AIFF up to 24bit/384kHz ALAC (Apple Lossless) up to 24bit/384kHz MP3 up to 48kHz, 320kbit (16 bit) AAC up to 48kHz, 320kbit (16 bit) OGG and WMA up to 48kHz (16 bit) DSD 64 & 128Fs (converted to PCM) M4A  up to48kHz, 320kbit High Res Streaming Up to 6 x 32bit / 384kHz or 10 x 16bit / 44kHz on above formats. Streaming Services Chromecast Built-In, Apple Airplay, TIDAL, Spotify® Connect, Bluetooth (AptX HD), Internet Radio™, UPnPTM (hi-res streaming) Gapless formats WAV, FLAC, AIFF and ALAC (Apple Lossless) Audio Outputs 1 x Wired IR RC5 Output  1 x 5-pin DIN Audio Inputs Audio Inputs 2 x optical TOSLink (up to 24bit/96kHz) 1 x coaxial RCA (up to 24bit/192kHz , DoP 64Fs) 1 x coaxial BNC (up to 24bit/192kHz, DoP 64Fs)  2 x USB Type A socket (front and rear) Certification & Licensing Apple AirPlay, Chromecast Built-In, Bluetooth, AptX HD, Zigbee RF4CE, Rovi, HDMI, NTFS, HFS and Wi-Fi. Finish Brushed and anodised aluminium casework. Power consumption Typical use: 25W (when using a single 555PS) Network Standby: < 2W  Deep sleep: < 0.5W Mains supply 100V, 115V or 230V, 50 or 60Hz Warranty 2 years  Additional 3 year warranty — once the device is registered.

If the router is located a long way from ND555 itself it?s possible that internet latency is reducing throughout. If the radio keeps dropping out using a wireless connection, try a wired Ethernet connection.

No the front panel buttons can not be programmed.

The digital inputs can be connected to a TV and supports stereo audio, however you must make sure that the TV audio output setting is set to PCM stereo out if using the digital input, as ND555 does not support Dolby or DTS encoded audio.  

A factory reset clears the Bluetooth history, meaning that your last connected device will not be able to reconnect. You need to delete the pairing on your Bluetooth device and pair again to ND555. For more information, see the ”Bluetooth Options: Forget a Bluetooth Connection” topic.

The ND555 can handle NTFS, HFS and FAT32 formatted drives to allow playback of music files. You may need to re-format your USB drive. Make sure to back-up all data on the USB drive before re-formatting. For more information on supported file types, see the “Specifications” topic.

To add Radio Station favourites select the station you wish to add and touch the Star icon. To remove a Radio Station favourite press the Star icon to deselect it. Alternatively, navigate to the Radio Favourites list and touch the … icon next to the desired station. Then touch Remove from Favourites.