Naim Audio
ND 555
Introduced 2019$22,999 MSRP
The Naim ND 555 is the first network streamer admitted into Naim's flagship 500 Series, combining a purpose-built streaming board with a legendary Burr-Brown PCM1704U-K multi-bit ladder DAC and requiring an outboard 555 PS DR power supply since it has no internal power provision (HiFi News). Its NP800 streaming platform decodes hi-res audio up to 384kHz/32-bit and DSD128, and it was the first ND-series product certified Roon Ready (HiFi News).
MSRP
$22,999
Used market · Excellent
$11,999
-48% vs MSRP
as of Sep 1, 2026MSRP to used market
From $22,999 at launch to $11,999 today.
Specifications
- Weight
- 14 kg
- DAC chip
- Burr-Brown PCM1704U-K multi-bit ladder DAC
- Dimensions
- 432 x 87 x 314mm (W x H x D)
- Digital inputs
- 2x TOSLink optical (up to 24-bit/96kHz), 1x coax RCA (up to 24-bit/192kHz, DoP 64Fs), 1x coax BNC (up to 24-bit/192kHz, DoP 64Fs)
- Analogue outputs
- 1x 5-pin DIN, 1x RCA (switchable)
- Power consumption
- 20W (1W standby)
- Streaming services
- Apple AirPlay 2, Bluetooth aptX HD, Chromecast built-in, Internet Radio, Qobuz, Roon Ready, Spotify Connect, TIDAL, UPnP
- Measured performance
- A-wtd S/N ratio 108.1dB (S/PDIF) / 108.0dB (USB); THD 0.00078% at 1kHz
- Streaming file formats
- WAV up to 32-bit/384kHz; FLAC/AIFF/ALAC up to 24-bit/384kHz; DSD64/128
- Digital signal processing
- SHARC ADSP21849 DSP, 16x oversampling, "40-bit" precision
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