At the core of the CI S2 is BluOS, NAD’s advanced streaming platform developed for reliable, high-performance multi-room audio. BluOS supports high-resolution playback and provides access to a wide range of streaming services, internet radio stations, and networked music libraries. Designed for responsive control and long-term stability, BluOS allows installers to deliver a consistent user experience across single zones or larger distributed audio systems.
The CI S2 is designed as a two-zone streaming solution, allowing installers to deliver independent audio streams from a single compact component. Each zone can be assigned its own content, volume, and output path, making the CI S2 ideal for distributed audio systems that require greater flexibility without added hardware. With analogue and digital connectivity supporting a wide range of amplifiers and system topologies, the CI S2 enables efficient zone expansion while keeping system design streamlined and easy to manage.
The CI S2 features a compact 1U, 1/3-rack- width enclosure, allowing for 6 stereo zones in a 1u rack space. The CI S2 can be combined with other NAD CI Modular Series devices and mounted in the rack using ChassisLink for simple tool free mounting. This space-efficient design supports clean rack layouts and simplifies installation in projects where space and access are limited.
| Supported Audio File Formats |
MP3, AAC, WMA, WMA-L, OGG, OPUS |
| Supported High-Quality Audio File Formats |
FLAC, MQA, ALAC, WAV, AIFF, MPEG-4 SLS |
| Supported Multi-Channel Audio Formats |
Dolby Digital® Downmixing to stereo PCM |
| Native Sampling Rates |
up to 192 KHz |
| Bit Depth |
16-24 |
| DAC |
ESS Sabre 9039Q2M |
| Audio Controls & EQ |
BluOS Control App |
| Signal-to-Noise Ratio |
-120dBA |
| Distortion |
THD+N, 0.0008% |
| Operating System |
BluOS |
| App Controller Operating System |
iOS, Android, Windows, macOS |
| Processor |
ARM® Cortex™ -A53, Quad-Core, 1.8GHz per core |
| Supported Network File Sharing |
Server Messsage Block (SMB) up to 200,000 files |
| Album Art Supported |
JPG, PNG |
| Music Services & Internet Radio |
23+ |
| 3rd-Party Integrations |
AirPlay 2, Spotify Connect, Tidal Connect |
| Room Correction Software |
No |
| Control System Integrations |
Creston, Control4, RTI, Nice, URC, Lutron, Gira, Rako, Rithum, Free@Home, Josh.AI |
| Voice Control Integrations |
Amazon Alexa Skills |
| Power Supply |
12v, 1.25a DC Universal Power Supply |
| PoE |
Yes (PoE can be used instead of supplied DC PSU) |
| Ethernet/LAN |
Ethernet RJ45, Gigabit 1000Mbps |
| Wi-Fi Built In |
No |
| Bluetooth |
No |
| IR Optical Built In |
No |
| IR Input |
2-pin PHX connector (IR extender kit required) |
| Inputs |
Toslink Optical, Digital Coax, Stereo RCA (Zone 1 Only) |
| HDMI Input |
No |
| USB In |
Type A (Fat32, NTFS Formatted) - External Storage Only Local Server Mode |
| Dual RCA Outputs |
Yes |
| Main Zone/Sub Zone Capability |
Yes (independent volume control over Speaker Output 2 when activated) |
| Subwoofer Output |
RCA x 1 (Zone 1 Only) |
| Headphone Output |
None |
| 12v Trigger Input |
x1 Configurable Smart Trigger Input |
| 12v Trigger Output |
Yes (PHX connector) |
| Status Indicator |
BluOS Status LED |
| Source Status Indicator |
No |
| Output Status Indicator |
No |
| Finish |
Black |
| Max Power Consumption |
15w |
| Storage Environment |
-10°C to 50°C, 20% to 80% relative humidity |
| Operating Environment |
0°C to 40°C |
| SKU/Version |
S1 |
| Generation |
1 |
| *Specifications subject to change without notice. |
