B400S

Bluesound Professional B400S - BluOS 4-zone network music player, 1U

The Bluesound Professional B400S is a 4-zone network music player designed for commercial AV installations. This 1U rack-mountable device is built on the BluOS platform and supports playback and distribution of content from local network storage and a wide range of streaming services, including SoundMachine, Custom Channels, QSIC, SiriusXM for Business, and Tunify.

Each zone operates as an independent player with separate content and control, or can be grouped flexibly with other zones within the B400S or across the BluOS ecosystem. With support for high-resolution audio, USB playback, and integration with leading control systems, the B400S is ideal for scalable, multi-zone audio environments in retail, hospitality, museums, and more.

Functionality:

• playback in 4 independent stereo zones
• integration with local network storage and USB drives
• streaming services: Spotify, Tidal, SoundMachine, SiriusXM for Business, and more
• internet radio: TuneIn, iHeartRadio, Calm Radio, Radio Paradise
• control via BluOS app (Android/iOS) and automation systems
• flexible zone grouping within BluOS ecosystem
• security features to prevent unauthorized access
• auto-discovery for fast setup

Key features:

• supported formats: MP3, AAC, WMA, OGG, ALAC, FLAC, MQA, WAV, AIFF
• sample rate: 32-192 kHz, bit depth: 16-24
• DAC: 32-bit
• SNR: 110 dB, THD+N: ≤0.005%
• audio inputs: Mic/Line (Phoenix), USB Type A/B, IR, System Interrupt
• audio outputs: analog (Phoenix x4), digital (TOSLINK x4, Coaxial x4), 12V trigger
• network: Gigabit Ethernet RJ45
• power: AC 100-240 V
• standby power: 6W
• dimensions: 480 x 46 x 234 mm (1U rack)
• net weight: 2.7 kg
• shipping weight: 3.8 kg
• operating environment: 0°C to 40°C
• storage environment: -10°C to 50°C

Bluesound Professional B400S is a powerful solution for multi-zone commercial audio installations, offering high-quality playback, flexible control, and seamless integration.