Product Description
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.
Specification
| Brand | Bose Professional |
| Model | CSP-428 |
| Product Type | Commercial Sound Processor |
| DSP Architecture | Fixed Architecture DSP |
| Audio Inputs | 4 analog inputs – 2 unbalanced mono-summed + 2 balanced mic/line |
| Input Connectors | 2 × RCA stereo pairs, 1 × 3-pin Euroblock, 1 × 4-pin Euroblock |
| Input Sensitivity | -70, -60, -50, 0, +4 dBu, -10 dBV |
| Input Impedance | 12 kΩ @ 1 kHz |
| Maximum Input Level | +24 dBu |
| Phantom Power | +48 V, selectable |
| Analog Outputs | 2 balanced line outputs |
| Output Connectors | 2 × 3-pin Euroblock |
| Maximum Output Level | +24 dBu |
| Output Impedance | 66 Ω |
| Digital Audio Output | 8-channel AmpLink |
| AmpLink Connector | 1 × RJ-45 |
| Frequency Response | 20 Hz – 20 kHz (+0.3/-0.5 dB) |
| THD+N | <0.01% @ +4 dBu |
| Dynamic Range | >115 dB, A-weighted |
| Channel Separation | < -105 dB @ 1 kHz |
| AEC | No |
| DSP Resolution | 24-bit / 48 kHz |
| DSP Processor | 32-bit fixed/floating-point DSP + 456 MHz ARM processor |
| Audio Latency | 900 µs, analog input to analog output |
| Control Inputs | 8 digital control inputs |
| Mute Input | 1 digital mute contact input |
| Control Output | 1 digital control output |
| Network Interface | RJ-45 Ethernet, 10/100 Mbps |
| Configuration | Browser-based configuration utility |
| Power Supply | 85–264 VAC, 50/60 Hz |
| Power Consumption | <30 W typical; <45 W maximum |
| Cooling | Active side-venting fan |
| Operating Temperature | 0°C to 40°C |
| Dimensions (H × W × D) | 44 × 483 × 215 mm |
| Rack Space | 1U |
| Color | Black |