High-resolution streaming for a New Classic 300 system
Naim NSS 333 is the dedicated 300 Series network source, with XLR, RCA and DIN outputs, streaming up to 384 kHz and an NPX 300 upgrade path.
The single Naim NSS 333 is designed as a separate digital source within New Classic, naturally partnering NAC 332 and a pair of NAP 350 monoblocks. Unlike NSC 222 it does not include volume control, phono stage or headphone output: its role is focused on network playback and digital-source handling.
Key features
- WAV streaming up to 32-bit/384 kHz, FLAC, AIFF and ALAC up to 24-bit/384 kHz, plus DSD 64 and 128
- Apple AirPlay 2, Chromecast, Roon Ready, Spotify Connect, TIDAL, Qobuz, UPnP and Bluetooth aptX
- Two optical inputs, RCA coaxial and BNC coaxial inputs, plus a BNC digital output
- Analogue outputs on XLR, RCA and 5-pin DIN
- 40-bit floating-point SHARC DSP
- 5.5" colour display with app control and Zigbee remote
- Optical System Automation for synchronising compatible products such as NAP 250 and NAP 350
- Compatible with NPX 300 external power supply and Super Lumina cables
How it differs from NSC 222
NSC 222 combines streaming and preamplification in one chassis and adds MM phono and headphone functions; NSS 333 separates source duties from analogue control. That architecture lets NAC 332 handle volume, analogue inputs and power-amplifier control while NSS 333 concentrates on streaming and digital conversion.
The digital centre of the 300 Series
With NAC 332 and two NAP 350 units, the complete 300 Series signal path is split across source, preamplifier and monoblock amplification. Balanced XLR outputs support the current architecture, while DIN and RCA retain useful flexibility with existing Naim systems and other equipment.
NPX 300 as the power-supply upgrade
NSS 333 can operate from its internal supply or connect to NPX 300. In that configuration the internal supply is bypassed and the external unit takes responsibility for powering digital and analogue sections through dedicated Burndy connections, keeping source and power-supply functions physically separate. Multiroom compatibility with other Naim streamers also lets it join distributed systems without changing its role as a dedicated source component.
