CSP-1248 Commercial Sound Processor

   The Bose Professional commercial sound processor simplifies quick-turn installations requiring music and microphone reinforcement with intelligent controls. AutoVolume adjusts sound levels in real time, adapting to changing ambient noise, while SmartBass ensures balanced bass that enhances any environment. With the time scheduler, you can automate source and level changes throughout the day, eliminating the need for manual adjustments. The network-based architecture allows for easy setup and real-time management via a browser interface or offline configuration utility. CSP supports up to five listening areas, managed by optional digital controllers or the ControlSpace Remote app, and features upgraded mixing functionality to blend multiple input sources, perfect for live microphone reinforcement. In conclusion, the Bose Professional sound processor is a versatile, efficient solution for high-quality sound reinforcement with user-friendly, network-based control.

 

FEATURES

• Ensure optimal sound levels with AutoVolume, which adjusts in real-time to ambient noise, keeping music at the ideal level when paired with AVM-1 sense microphones (sold separately). Upgrade to the CSP-1248 processor to support up to five AVM-1 units, or choose the CSP- 428 processor for up to two units.
• Deliver the perfect bass level—noticeable yet never overpowering. SmartBass delivers balanced bass, adapting to room acoustics and ear sensitivity for rich, nonoverpowering sound, even at low volumes.
• Struggle no more with uneven audio levels between different sources. Opti-Source Level Management, which adjusts the input of up to four sources for uniform volume. Opti-Voice ensures smooth transitions between music and
  announcements.
• Take advantage of full mixing functionality, allowing input sources to be mixed and assigned to each listening area.
• Zone the sound system to tailor audio for each area, creating up to five distinct listening zones. Control each with optional wall-mounted ControlCenter controllers or the ControlSpace Remote app.
• Use the CSP Configuration Utility appto pre-configure devices, and export settings.
• Right-sized connectivity for for cost-effective commercial installation — 8 x 4 balanced analog I/O, 4 pair mono-summed RCA inputs, 8 control inputs, 1 control output, mute contact, Ethernet port, and Bose AmpLink connectivity.
• Bose Professional AmpLink output for simplified digital audio connection to compatible power amplifiers, reducing terminations, and related points of failure.
• Simplify wiring with a network-based architecture, using Cat-5 or Cat-6 wiring and PoE capabilities. Supports both DHCP and static IP schemes for flexibility and scalability.

 

SPECS

Technical Specification
      AMPLIFICATION

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)

 

ACOUSTIC ECHO CANCELATION (AEC)

AEC-Enabled No

 

AUDIO INPUTS, ANALOG

Input Channels 12 (4 unbalanced, summed-mono + 8 balanced, mic/line)	Connectors (4) RCA stereo pairs, (7) 3-pin Euroblock, (1) 4-pin Euroblock
Equivalent Input Noise < -119 dBu at 64 dB gain (150 Ω input, 22 Hz – 20 kHz)	Sensitivity Options -70 dBu, -60 dBu, -50 dBu, 0 dBu, +4 dBu, -10 dBV, with 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

 

AUDIO INPUTS/OUTPUTS, DIGITAL

Channels 8 AmpLink out	Connectors (1) RJ-45 AmpLink out
Type AmpLink (output)

 

AUDIO OUTPUTS, ANALOG

Channels 4 balanced, line	Connectors (4) 3-pin Euroblock
Maximum Output Level +24 dBu (22 Hz – 20 kHz, THD+N < 0.3%)	Output Impedance 66 Ω

 

COMPLIANCE

EN 54-24 Certified No

 

CONTROL INPUTS

Inputs (Control) (8) digital, 9-pin Euroblock, 3.81 mm / (1) digital, 2-pin Euroblock, 3.81 mm (mute)

Digital Input Voltage 0 V – 3.3 V (1.6 V threshold)

 

CONTROL OUTPUTS

Outputs (Control) (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

 

ELECTRICAL

Mains Connector IEC 60320-C14 inlet	Mains Voltage 85–264 VAC, 50/60 Hz
AC Power Consumption < 30 W typical, over all mains voltages (power supply maximum < 45 W)	Power Dissipation 22 W (75 BTU/hr, 19 kcal/hr)

 

GENERAL

Computer Interface Connection RJ-45 (Ethernet, 10/100 Mbps)

 

INDICATORS AND CONTROLS

LED Status Indicators (1) power/status LED, (1) input/output signal LED, (1) Ethernet LED, (1) AmpLink LED

 

INTEGRATED DSP

A/D and D/A Converters 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 48 kHz / 24-bit

 

PHYSICAL

Colors Black	Cooling System Active, side-venting with fan
Suspension/Mounting Standard rack ears	Operating Temperature Range 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)