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Intuitive Setup Process Bose Professional Commercial Sound Processors (CSP) are integral to a complete sound system that includes loudspeakers, amplifiers, controls, and software, allowing installers to deploy premium sound systems efficiently. They feature an onboard CSP configuration utility and an intuitive browser-based user interface, streamlining the setup process. Real-time displays of levels, routing, thresholds, and priorities eliminate guesswork, allowing for faster system configuration, reduced installation time, and improved setup accuracy.
Optimized Connectivity Bose Professional CSPs provide the ideal balance of inputs and outputs to meet diverse installation needs. They offer balanced analog I/O, mono-summed RCA inputs, control inputs and outputs, and a mute contact. Additionally, an AmpLink output facilitates simple digital audio connections to compatible amplifiers, minimizing termination and potential failure points. The rear-panel Ethernet port enables configuration via Mac or PC and connects to optional ControlCenter digital zone controllers and the ControlSpace Remote app.
Up to Five Listening Areas (Discrete Zones) Bose Professional CSPs allow for the creation of up to five discrete zones, known as Listening Areas. Each Listening Area can be managed through optional wall-mounted ControlCenter digital zone controllers or via the ControlSpace Remote app. These controllers enable sound level adjustments, and select ControlCenter models also offer source selection capabilities. Furthermore, the CSP includes more than five outputs, enabling multiple outputs per Listening Area to be controlled by a single assigned controller.
User-Friendly Operation Bose Professional CSPs are designed for ease of use post-installation. Proprietary algorithms ensure predictable performance across various scenarios. Features such as Opti-source level management maintain consistent volume across multiple sources. SmartBass processing enhances audio performance at any volume level. Opti-voice paging ensures smooth transitions between music and announcements. Together with the Bose AVM-1 sense microphone, the AutoVolume feature adjusts output based on ambient noise, ensuring optimal sound in active environments.
Right-sized connectivity for cost-effective commercial installation — 2 × 2 balanced analog I/O, 2 pair mono-summed RCA inputs, 8 control inputs, 1 control output, mute contact, Ethernet port, and Bose Professional AmpLink connectivity
CSP configuration utility with browser-based UI facilitates real-time display and control of levels, routing, thresholds, priorities, scheduled events, Bose Professional 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 Professional 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
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
Designed for a wide range of applications, including:
Retail stores
Restaurants
Hospitality venues
Channel Separation (Crosstalk)
< -105 dB at +4 dBu, 1 kHz input signal
Dynamic Range
> 115 dB, A-weighted, 20 Hz – 20 kHz, analog through
Frequency Response
20 Hz – 20 kHz (+0.3 dB/-0.5 dB)
THD+N
< 0.01% at +4 dBu (A-weighted, 20 Hz – 20 kHz)
AEC-Enabled
No
Channels
4 (2 unbalanced, summed-mono + 2 balanced, mic/line)
Connectors
(2) RCA stereo pairs, (1) 3-pin Euroblock, (1) 4-pin Euroblock
Equivalent Input Noise
< -119 dBu at 64 dB gain (150 Ω input, 22 Hz – 20 kHz)
Gain Settings
-70 dBu, -60 dBu, -50 dBu, 0 dBu, +4 dBu, -10 dBV, selectable phantom power
Input Impedance
12 kΩ at 1 kHz, with or without phantom power
Maximum Input Level
+24 dBu at 0 dB gain (20 Hz – 20 kHz, THD+N < 0.3%)
Phantom Power
48 V, selectable per input, open circuit, 10 mA maximum per channel, 80 mA maximum across all channels
8 AmpLink out
(1) RJ-45 AmpLink out
Type
AmpLink (output)
2 balanced, line
(2) 3-pin Euroblock
Maximum Output Level
+24 dBu (22 Hz – 20 kHz, THD+N < 0.3%)
Output Impedance
66 Ω
EN 54-24 Certified
Control Inputs
(8) digital, 9-pin Euroblock, 3.81 mm / (1) digital, 2-pin Euroblock, 3.81 mm (mute)
Voltage Range, Digital
0 V – 3.3 V (1.6 V threshold)
Control Outputs
(1) digital, 2-pin Euroblock, 3.81 mm, detachable
Output Current
10 mA source, 100 mA sink (24 VDC maximum external supply voltage)
Output Voltage
High: 8 V (open circuit), 2.5 V at 10 mA / Low: < 1 V at 100 mA, push-pull
Mains Connector
IEC 60320-C14 inlet
Mains Voltage
85–264 VAC, 50/60 Hz
Power Consumption
< 30 W typical, over all mains voltages (power supply maximum < 45 W)
Power Dissipation
22 W (75 BTU/hr, 19 kcal/hr)
Computer Interface Connection
RJ-45 (Ethernet, 10/100 Mbps)
LED Status Indicators
(1) power/status LED, (1) input/output signal LED, (1) Ethernet LED, (1) AmpLink LED
A/D and D/A Conversion
48 kHz / 24-bit
Audio Latency
900 μs, analog input to analog output
DSP-Enabled
Yes
Maximum Calculation
3.6 GIPS / 2.7 GFLOPS
Signal Processor/CPU
32-bit fixed/floating-point DSP + Arm 456 MHz processor
Sample Rate / Bit Depth
Colors
Black
Cooling System
Active, side-venting with fan
Mounting/Rigging Provisions
Standard rack ears
Operating Temperature
0 °C to 40 °C (32 °F to 104 °F)
Product Dimensions (H×W×D)
1.7 in × 19.0 in × 8.5 in (44 mm × 483 mm × 215 mm)
Rack Spaces
1RU
Storage Temperature
-40 °C to 70 °C (-40 °F to 158 °F)
5 years
(1) 3-pin Euroblock connector
(1) 4-pin Euroblock connector
(1) 6-pin Euroblock connector
(1) 9-pin Euroblock connector
(1) AC power cord
(1) CSP-428
(1) installation guide
(11) cable ties
(2) 2-pin Euroblock connectors
