Technical Specifications
ESP-1240A
Integrated DSP
Signal Processor 32-bit fixed-/floating-point DSP with Arm processor, 456 MHz
Maximum Calculation 3.6 GIPS / 2.7 GFLOPS
Delay 43 s
Audio Latency 860 μs (analog in to analog out)
A/D & D/A Converters 24-bit
Sampling Rate 48 kHz
Audio Performance
Frequency Response 20 Hz–20 kHz (+0.3 dB/−0.1 dB)
THD+N 0.002% at +4 dBu (A-weighted, 20 Hz–20 kHz)
Channel Separation (Crosstalk) < −105 dB at +4 dBu input & output level, 1 kHz
Dynamic Range > 115 dB (A-weighted, 20 Hz–20 kHz, analog through)
Audio Inputs
Input Channels 12 analog (balanced, mic-/line-level)
Input Connectors Euroblock (6 pins, 3.81 mm)
Input Impedance 12 kΏ at 1 kHz (with or without phantom power active)
Maximum Input Level +24 dBu
Equivalent Input Noise < −119 dBu (22 Hz–20 kHz, 150 Ώ input, 64 dB gain)
Phantom Power +48 VDC, 10 mA, selectable per input
Gain Settings 0, 14, 24, 32, 44, 54 & 64 dB
Audio Outputs
Output Channels 4 analog (balanced, line-level), 8 digital (AmpLink)
Output Connectors Euroblock (6 pins, 3.81 mm), RJ-45 (AmpLink)
Output Impedance 66 Ώ
Maximum Output Level +24 dBu
Control Inputs
Inputs (Control) 5 analog or digital inputs, internal 2 kΏ pull-up resistor to 5 V,
Euroblock connector (6 pins, 3.81 mm)
Analog Input Voltage Range 0 V–3.3 V (5 V maximum)
Digital Input Voltage Range 0 V–3.3 V (1.6 V threshold voltage)
Control Outputs
Outputs (Control) 5 digital outputs, Euroblock connector (6 pins, 3.81 mm)
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 maximum external supply voltage)
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