The CSP-428 is a powerful yet easy-to-use commercial sound processor designed to simplify installed audio systems in restaurants, retail, hospitality, corporate, and education spaces. It provides 4 inputs and 28 outputs, with intuitive configuration tools and Bose loudspeaker EQ presets for quick setup and high-quality sound.
With built-in Bose ControlSpace Designer software integration, auto-EQ, dynamic EQ, and seamless compatibility with Bose user controls, the CSP-428 offers a balance of professional-grade DSP power and straightforward operation for staff.
- 4 mic/line inputs, 28 outputs for flexible routing
- Optimized EQ presets for Bose loudspeakers
- Automatic loudspeaker EQ and dynamic EQ for consistent sound
- Configurable via Bose ControlSpace Designer software
- Works with optional Bose wall-mounted remote controllers and ControlCenter user interfaces
- Ideal for background/foreground music and paging applications
Performance & Processing
- Inputs: 4 × balanced mic/line inputs (Euroblock, with phantom power)
- Outputs: 28 × balanced line outputs (Euroblock)
- Supported Functions:
• EQ (parametric, graphic, auto EQ)
• Dynamics (limiting, compression)
• Delay
• Loudspeaker EQ presets (Bose libraries)
• Source selection and routing
• Priority paging with ducking - Sample Rate / Bit Depth: 48 kHz / 24-bit
- Latency: < 3 ms typical
Control & Connectivity
- Software: Configurable via Bose ControlSpace Designer
- Remote: Compatible with Bose ControlCenter CC-1, CC-2, CC-3 wall controllers
- GPIO: Control ports for contact closures, external triggers, and integration
- Ethernet: For configuration and control
Physical / Mechanical
- Dimensions (H × W × D): 44 × 483 × 276 mm (1.75″ × 19″ × 10.9″) – 1RU
- Net Weight: ≈ 3.9 kg (8.6 lb)
- Mounting: Standard 19″ rackmount
- Cooling: Convection cooled (fanless, silent operation)
Applications
- Retail shops and shopping malls
- Restaurants, cafés, and bars
- Hotels and hospitality venues
- Corporate offices and meeting spaces
- Schools and education facilities
- Houses of worship
