Why This Guitar

Product Highlights

Streamlined Browser-Based Configuration — This allows installers to configure signal routing, DSP settings, and control options quickly and efficiently without needing specialized software.
Advanced Bose DSP Engine — Onboard algorithms include AutoVolume, which dynamically adjusts zone levels in response to ambient noise, and SmartBass for rich low-end at any volume.
Flexible I/O with AmpLink — Engineered for flexibility, the CSP-428 offers four analog inputs and ten outputs (two analog, eight digital).
Rear-panel Ethernet port for PC/Mac configuration and control
SmartBass processing for enhanced low-frequency response

Available Since: August, 2026
Item No.: 10010846
Local SKU: OS

Streamlined Browser-Based Configuration

The CSP-428 features a straightforward browser-based configuration utility, accessible via the rear-panel Ethernet port. This allows installers to configure signal routing, DSP settings, and control options quickly and efficiently without needing specialized software. The intuitive interface displays the entire signal path in one view for easy system setup and troubleshooting.

Advanced Bose DSP Engine

Leveraging Bose's renowned digital signal processing, the CSP-428 delivers exceptional audio quality tailored to your space. Onboard algorithms include AutoVolume, which dynamically adjusts zone levels in response to ambient noise, and SmartBass for rich low-end at any volume. Access to a library of Bose speaker EQs ensures optimal performance when paired with Bose loudspeakers.

Flexible I/O with AmpLink

Engineered for flexibility, the CSP-428 offers four analog inputs and ten outputs (two analog, eight digital). The eight digital outputs use Bose's proprietary AmpLink protocol, allowing for a clean, single-cable connection to AmpLink-equipped amplifiers up to 10 meters away. This versatile I/O makes it an ideal hub for a variety of commercial sound applications.

BY THE NUMBERS

Technical Specifications

Hardware & Setup

Body & Build

Finish & Colour

EssentialNo

Everything you receive

What's In The Box

Bose ControlSpace CSP-428 Commercial Sound Processor, 4x10 DSP
Owner's Manual
Local Warranty Card

Bose Professional

The Maker

About Bose Professional

Bose Professional creates complete audio solutions for workplaces, hospitality, retail, education, houses of worship, and performance venues. Its loudspeakers, amplifiers, processors, and conferencing products are engineered as integrated systems, helping designers and installers deliver clear, consistent sound with elegant, space-conscious installations.

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Expert answers

Questions & Answers

6 questions answered by aDawliah experts·avg response 2 hours

It is designed for commercial sound installations requiring high-quality audio processing and zone control, such as in retail stores, restaurants, and hospitality venues.

Configuration is done through the CSP Configuration Utility, a web-browser-based interface accessed by connecting a PC or Mac to the processor's Ethernet port.

No, it does not have built-in Dante or AES67 support. For digital audio output, it uses the proprietary Bose AmpLink protocol via an RJ-45 connector.

It features four analog inputs: two unbalanced stereo RCA pairs that are summed to mono, and two balanced mic/line inputs on Euroblock connectors with selectable phantom power.

Yes, it is compatible with Bose ControlCenter digital zone controllers (CC-1, CC-2, CC-3) for simple, end-user control of volume and source selection.

The AmpLink output sends up to 8 channels of digital audio over a single standard Cat 5/6 cable to compatible Bose amplifiers, simplifying wiring and reducing installation time.

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