Bose Professional ControlSpace CSP-1248 Commercial Sound Processor

Bose Professional ControlSpace CSP-1248 is a commercial sound processor designed for quick-turn installations requiring music playback and microphone reinforcement. It enables intelligent level control, source mixing, and zone management for installers and system integrators supporting commercial audio workflows. This makes it ideal for environments where automated operation, consistent sound quality, and simple user control are critical.

The processor uses network-based architecture with browser-based configuration for setup and real-time management. Integrated DSP supports mixing, routing, equalization, dynamics, and automation features without external processing hardware. AmpLink digital audio output enables simplified connection to compatible Bose Professional power amplifiers.

The CSP-1248 supports multi-zone audio distribution with optional wall-mounted controllers or mobile app control. Automated scheduling and adaptive processing reduce manual adjustments during daily operation. The system is designed to support scalable commercial sound systems across multiple listening areas.

Key Features

• AutoVolume Level Control: Automatically adjusts audio levels in response to changing ambient noise
• SmartBass Processing: Delivers balanced bass response adapted to room acoustics and listening levels
• Multi-Zone Audio Management: Supports up to five listening areas with independent control
• Integrated Mixing and DSP: Provides source mixing, EQ, delays, limiters, and loudspeaker processing
• Browser-Based Configuration: Enables setup and monitoring through a standard web interface
• AmpLink Digital Output: Simplifies digital audio connection to compatible Bose Professional amplifiers
• Automation and Scheduling: Allows time-based source and level changes throughout the day
• Optional User Control: Supports ControlCenter wall controllers and ControlSpace Remote app

Technical Specifications

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

Analog Audio Inputs
12 total inputs
4 unbalanced summed-mono
8 balanced mic/line

Input Connectors
(4) RCA stereo pairs
(7) 3-pin Euroblock
(1) 4-pin Euroblock

Maximum Input Level
+24 dBu at 0 dB gain (20 Hz – 20 kHz, THD+N < 0.3%)

Phantom Power
48 V selectable per input
10 mA maximum per channel
80 mA maximum across all channels

Digital Audio Output
8 AmpLink output channels via RJ-45

Analog Audio Outputs
4 balanced line outputs via 3-pin Euroblock

Control Inputs
8 digital control inputs via 9-pin Euroblock
1 digital mute input via 2-pin Euroblock

Control Outputs
1 digital output via 2-pin Euroblock

Integrated DSP
Yes

DSP Sample Rate and Resolution
48 kHz / 24-bit A/D and D/A conversion

Audio Latency
900 μs analog input to analog output

Mains Voltage
85–264 VAC, 50/60 Hz

AC Power Consumption
< 30 W typical
Power supply maximum < 45 W

Cooling System
Active cooling with side-venting fan

Product Dimensions (H × W × D)
1.7" × 19.0" × 8.5"
44 mm × 483 mm × 215 mm

Rack Space
1 RU

Operating Temperature Range
0 °C to 40 °C (32 °F to 104 °F)

Warranty Period
5 years

What’s in the Box

(1) ControlSpace CSP-1248 sound processor
(1) AC power cord
(1) Installation guide
(1) 3-pin Euroblock connector
(1) 4-pin Euroblock connector
(2) 2-pin Euroblock connectors
(5) 6-pin Euroblock connectors
(1) 9-pin Euroblock connector
(11) Cable ties