The Bose Professional ControlSpace ESP‑880A Engineered Sound Processor is a high‑performance digital signal processor (DSP) designed to serve as the core of sophisticated installed audio systems in commercial, institutional, and entertainment environments. It features an open‑architecture DSP with 8×8 balanced analog audio inputs and outputs, advanced 48 kHz/24‑bit digital processing, and ultra‑low noise performance for precision audio control and routing across multiple zones and sources. Integrated AmpLink connectivity allows up to eight channels of uncompressed, low‑latency digital audio to be distributed over a single Cat 5 connection to compatible Bose Professional amplifiers, streamlining system cabling and enhancing reliability. The ESP‑880A also supports extensive control and automation via Ethernet, RS‑232, GPIO ports, and integration with industry‑standard control systems such as AMX and Crestron, with comprehensive configuration and signal tailoring accomplished through the powerful ControlSpace Designer software. Built for flexibility, this engineered sound processor can be programmed with a wide suite of DSP modules—from automatic mic mixers and feedback suppressors to EQ filters, compressors, gates, and delays—making it ideal for auditoriums, houses of worship, retail spaces, educational facilities, and hospitality installations.
Features
- High-Quality Analog Circuitry
- Advanced Digital Signal Processing
- Integrated AmpLink Connection
- Bose ControlSpace Designer Software
- Front-Panel RJ-45 Ethernet
- Multiple Control Options
- Supports Standard Control Systems
Specifications
| DSP Section | Signal Processor/CPU: 32-Bit Fixed/Floating-Point DSP + ARM, 456 MHz Maximum Calculation: 3.6 GIPS / 2.7 GFLOPS Delay: 43 s Audio Latency: 860 μs (Analog In to Analog Out) A/D and D/A Converters: 24-Bit Sample Rate: 48 kHz |
| Audio Performance | Frequency Response: 20 Hz to 20 kHz (+0.3 / -0.1 dB) THD+N: <0.002% at +4 dBu (A-Weighted / 20 Hz to 20 kHz) Channel Separation (Crosstalk): <-105 dB at +4 dBu Input and Output Level, 1 kHz Dynamic Range: >115 dB A-Weighted 20 Hz to 20 kHz, Analog Through |
| Audio Input | Input Channels: 8 Analog (Balanced, Mic/Line Level) Connectors, Input: 0.15″ / 3.81 mm Phoenix Contact, 6-Pin Input Impedance: 12 Kilohms at 1 kHz (with or without Phantom Power Active) Maximum Input Level: +24 dBu Equivalent Input Noise: <-119 dBu (22 to 20 kHz, 150-Ohm Input, 64 dB Gain) Phantom Power: +48 VDC, 10 mA, Selectable per Input Pre-Gain Settings: 0/14/24/32/44/54/64 dB |
| Audio Output | Output Channels: 8 Analog (Balanced, Line Level), 8 AmpLink Connectors, Output: 0.15″ / 3.81 mm Phoenix Contact, 6-Pin (Analog), AmpLink RJ-45 Output Impedance: 66 Ohms Maximum Output Level: +24 dBu |
| Control Inputs | Inputs (Control): 5 Analog or Digital Inputs, 2 Kilohms Internal Pull-Up Resistor to 5 V, 0.15″ / 3.81 mm Phoenix Contact, 6-Pin Analog Input Voltage Range: 0 to 3.3 V (Maximum 5 V) Digital Input Voltage Range: 0 V to 3.3 V (Threshold Voltage = 1.6 V) |
| Control Output | Outputs (Control): 5 Digital Outputs, 0.15″ / 3.81 mm Phoenix Contact, 6-Pin Output Voltage High: 8 V (Open Circuit), 2.5 V at 10 mA; Low: <1 V at 100 mA, Push-Pull Output Current: 10 mA Source, 100 mA Sink (24 VDC Max External Supply Voltage) |
| Indicators & Controls | LED Status Indicators: Power/Status, Signal, Ethernet, Serial (RS-232 + CC-16) Audio Signal Indication: Green (-60 to -20 dBFS), Yellow (-20 to -2 dBFS), Red (-2 to 0 dBFS) |
| General | PC Configuration Software: ControlSpace Designer Software Network Control: Ethernet (RJ-45), 100 MB Communications Ports: RS-232 (DB9M, DTE), Bose CC-16 (0.15″ / 3.81 mm Phoenix Contact, 3-Pin) |
| Operating Temperature | 32 to 104°F / 0 to 40°C |
| Cooling | Active, Side Venting |
| Power | Mains Voltage: 85 to 264 VAC 50/60 Hz AC Power Consumption: <37 VA Typical, Over All Mains Voltages Mains Connector: IEC 60320-C14 (Inlet) Power Dissipation: 22 W (75 BTU/Hr, 19 kCal/Hr) |
| Dimensions | 1.7 x 19.0 x 8.5″ / 4.3 x 48.2 x 21.6 cm |
| Weight | 5.8 lb / 2.6 kg |
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