Bose Professional CSP-428 Commercial Sound Processor

The DSP for quick-turn installations — Bose commercial sound processors are part of a comprehensive platform that includes loudspeakers, controls, and software that help installers deliver premium sound systems efficiently. An onboard CSP configuration utility and intuitive browser-based UI provide a quick-setup workflow. Common tasks are presented in a logical manner, so you can configure the system faster, reducing installation time while increasing setup accuracy. Once installed, Bose-proprietary algorithms offer predictable performance while optional interfaces — such as ControlCenter digital zone controllers and the ControlSpace Remote app — make operation easy for end users.

Main Features

• Right-sized connectivityfor cost-effective commercial installation — 2 x 2 balanced analog I/O, 2 pair mono-summed RCA inputs, 8 control inputs, 1 control output, mute contact, Ethernet port, and Bose AmpLink connectivity
• CSP configuration utilitywith browser-based UI facilitates real-time display and control of levels, routing, thresholds, priorities, scheduled events, Bose loudspeaker EQs, plus input and area EQs
• Rear-panel Ethernet portfor PC/Mac configuration; also allows for connection to networks supporting ControlCenter digital zone controllers and the ControlSpace Remote app
• AutoVolume compensationcontinuously adapts zone output level based on ambient noise when paired with the Bose AVM-1 sense microphone (sold separately)
• Opti-voice pagingprovides a smooth transition between music and announcements
• Opti-source level managementmonitors input level of up to 4 sources, maintaining consistent volume when switching sources
• SmartBass processingexpands performance and response at any listening level
• Bose AmpLink outputfor simplified digital audio connection to compatible power amplifiers, reducing terminations, and related points of failure
• Intuitive end-user operation— optional ControlCenter CC-1D, CC-2D, and CC-3D digital zone controllers and ControlSpace Remote app provide easy volume control and source selection