Bose Professional ControlSpace ESP-880A Engineered Sound Processor

The Bose Professional ControlSpace ESP-880A Engineered Sound Processor features high-quality analog circuitry, advanced digital signal processing, and an integrated AmpLink connection. It includes Bose ControlSpace Designer Software. The unit provides 8 analog input channels and 8 analog output channels with specific technical specifications for audio performance, input/output levels, and control interfaces. It operates within a temperature range of 32 to 104°F and has active cooling with side venting. The device is powered by 85-264 VAC at 50/60 Hz and weighs 5.8 lb.

• 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)