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.
Bose CSP-428 Commercial Sound Processor
- Input Channels
- 2 analog (balanced, Mic/Line Level/Page-In)
- 2 analog (unbalanced, RCA Line-in, summed to mono)
Applications
- Retail stores
- Restaurants
- Hospitality venues
FEATURES
Right-sized connectivity for 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 utility with 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 port for PC/Mac configuration; also allows for connection to networks supporting ControlCenter digital zone controllers and the ControlSpace Remote app
AutoVolume compensation continuously adapts zone output level based on ambient noise when paired with the Bose AVM-1 sense microphone (sold separately)
Opti-voice paging provides a smooth transition between music and announcements
Opti-source level management monitors input level of up to 4 sources, maintaining consistent volume when switching sources
SmartBass processing expands performance and response at any listening level
Bose AmpLink output for 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
Applications
- Retail stores
- Restaurants
- Hospitality venues
SPECS
Technical Summary
Signal Processor/CPU
32-bit fixed/floating-point DSP + ARM, 456 MHz
Input Channels
2 analog (balanced, Mic/Line Level/Page-In)
2 analog (unbalanced, RCA Line-in, summed to mono)
Dynamic Range
115 dB, A-weighted 20 Hz to 20 kHz, analog through, 600 Ω load
Output Channels
2 analog (balanced, Line Level)
8 digital (AmpLink output)
Images
Mechanical Diagrams
Bottom View
Back View
Side View
Top View
Front View
ISO View
Data sheet
- Product Category Feature
- Sound
- Price Unit
- Each
- Condition
- new
- Availability
- in stock
- Audio Product Type
- Processors
- Brand
- Bose
- Manufacturer
- Bose
- Number of Input Channels
- 2 Channel
- Number of Output Channels
- 4 Channel
- Product Rack Height
- 1U
- IP Network Connectivity
- Yes
- On-board DSP
- Yes
Specific References
- EAN13
- 0017817790550
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