Bose CSP-428 commercial sound processor – EU

Bose Professional CSP-428 Commercial Sound Processor 230V EU

The Bose Professional CSP-428 Commercial Sound Processor 230V EU is compact commercial DSP processor designed for quick-turn music, microphone, paging, and sound reinforcement installations. It combines digital signal processing, flexible audio I/O, configuration controls, and commercial installation features in a compact rack-mount platform. The architecture is intended for retail, hospitality, restaurant, paging, background music, and other fixed-installation environments where repeatable system configuration and dependable signal management are important.

At the processing level, the CSP-428 uses a 32-bit fixed/floating-point DSP with ARM processing and 48 kHz, 24-bit conversion. The defined signal path supports balanced and unbalanced source connections, while the available control and paging interfaces allow integrators to build practical systems around the processor. AmpLink digital outputs provide a direct connection path to compatible Bose Professional amplification equipment.

The CSP-428 is designed for efficient commissioning through its browser-based configuration workflow. Functions such as AutoVolume, SmartBass, Opti-voice paging, and source-level management help maintain consistent system behavior without requiring complex manual adjustment for every operating condition. The processor also provides control inputs and status indicators for integration into larger commercial audio installations.

From a system-design perspective, the CSP-428 offers defined input and output counts, low analog latency, high dynamic range, and a 1RU chassis that fits standard equipment racks. Its electrical specifications support broad mains-voltage operation, while the rear-panel connectors provide practical access to audio, control, networking, and AmpLink connections. These characteristics make the processor suitable for structured commercial sound systems that require predictable routing, processing, and control. Careful placement and configuration can further support even sound distribution and consistent intelligibility across the intended listening area.

Features of CSP-428

• 32-bit DSP and ARM processing
• Four analog audio inputs
• Two analog and eight AmpLink digital outputs
• Browser-based configuration utility
• AutoVolume processing
• SmartBass processing
• Opti-voice paging transitions
• Opti-source level management
• Eight digital control inputs
• 1RU rack-mount design

Specifications of CSP-428