NAD CI S2 BluOS Streaming Module

NAD CI S2 – 2-zone BluOS network music player for professional multiroom installations

The NAD CI S2 was specifically designed for modern custom-install and multi-room audio systems. As a compact 2-zone network streamer, it combines high-resolution music streaming with flexible integration, stable network performance, and professional control options. Thanks to the powerful BluOS platform, the CI S2 provides access to numerous streaming services, internet radio, and local music libraries – conveniently controllable and perfectly suited for demanding AV installations.

With its space-saving 1U rack design, the NAD CI S2 is ideal for professional rack solutions and larger distributed audio systems. Each zone can be controlled independently, managing individual content, volume levels, and outputs. This makes the CI S2 the ideal solution for flexible multi-room applications in residential buildings, commercial projects, or high-end home theater installations.

Inside, high-quality ESS DACs ensure precise, high-resolution sound quality. Analog and digital audio inputs allow for easy integration of external sources, while Ethernet network connections provide a stable wired connection. Additionally, the CI S2 supports Power over Ethernet (PoE) or conventional DC power and offers configurable 12V triggers for seamless integration into professional control and automation systems.

Thanks to its support for leading smart home and control systems, the NAD CI S2 can be easily integrated into existing installations, offering installers maximum flexibility in planning and implementing modern audio setups.

Key Features

• BluOS high-resolution multiroom streaming platform
• 2-zone network streamer for professional custom-install applications
• Supports streaming services, internet radio and local music libraries
• High-quality ESS DACs for precise Hi-Res sound
• Analog and digital audio inputs for flexible system integration
• Ethernet port for a stable wired network connection
• Supports PoE or DC power supply
• Configurable 12V Smart Trigger
• Compact 1U//? rack enclosure
• Expandable for larger distributed audio systems
• Support for leading control and automation systems
• Tool-free rack mounting compatible with ChassisLink
• Ideal for multiroom, smart home and AV installations

Perfect for professional multiroom and smart home systems

The NAD CI S2 is aimed at installers and users seeking a reliable, high-quality, and flexible streaming solution for modern audio distribution. Its compact design, powerful BluOS platform, and professional integration capabilities make this network player ideal for high-end residential, commercial, and home theater projects.

Technical data

• Supported audio formats: MP3, AAC, WMA, WMA-L, OGG, OPUS
• High-resolution audio formats: FLAC, MQA, ALAC, WAV, AIFF, MPEG-4 SLS
• Multi-channel audio: Dolby Digital® downmixing to stereo PCM
• Native sampling rates: up to 192 kHz
• Bit depth: 16–24 bits
• DAC: ESS Sabre 9039Q2M
• Audio control & EQ: BluOS Control App
• Signal-to-noise ratio: -118 dBA
• Distortion: THD+N 0.0007%
• Operating system: BluOS
• App compatibility: iOS, Android, Windows, macOS
• Processor: ARM® Cortex™-A53 Quad-Core, 1.8 GHz per core
• Network file sharing: SMB (Server Message Block), up to 200,000 files
• Supported album formats: JPG, PNG
• Music services & internet radio: 23+ services
• Third-party integrations: AirPlay 2, Spotify Connect, Qobuz Connect, Tidal Connect
• Room correction: not supported
• Control integrations: Crestron, Control4, RTI, Nice, URC, Lutron, Gira, Rako, Rithum, Free@Home, Josh.AI
• Voice control: Amazon Alexa Skills
• Power supply: 12 V, 1.25 A DC universal power supply
• PoE: yes (can be used as an alternative to DC power supply)
• Network: Ethernet RJ45, Gigabit 1000 Mbps
• Wi-Fi: no
• Bluetooth: no
• IR: IR input via 2-pin PHX (IR extender required)
• Inputs: Toslink Optical, Digital Coax, Stereo RCA
• HDMI: no
• USB: Type A (FAT32/NTFS, only external storage in Local Server Mode)
• Outputs: Dual RCA
• Zones: Main Zone / Sub Zone (separate volume control when output zone 2 is activated)
• Subwoofer output: RCA x1, optional wireless via PULSE SUB+ (Main Zone only)
• Headphone output: none
• 12V Trigger: 1x input (programmable), 1x output (PHX)
• Status display: BluOS status LED
• Case color: Black
• Power consumption: max. 15 W
• Storage conditions: -10 °C to 50 °C, 20–80% relative humidity
• Operating conditions: 0 °C to 40 °C
• SKU/Version: CI S1
• Generation: 1