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Appendix C:
Axia System Specifications
Microphone Preamplifiers
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Source Impedance: 150 ohms
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Input Impedance: 4 k ohms minimum, balanced
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Nominal Level Range: Adjustable, -75 dBu to -20 dBu
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Input Headroom: >20 dB above nominal input
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Output Level: +4 dBu, nominal
Analog Line Inputs
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Input Impedance: >40 k ohms, balanced
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Nominal Level Range: Selectable, +4 dBu or -10dBv
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Input Headroom: 20 dB above nominal input
Analog Line Outputs
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Output Source Impedance: <50 ohms balanced
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Output Load Impedance: 600 ohms, minimum
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Nominal Output Level: +4 dBu
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Maximum Output Level: +24 dBu
Digital Audio Inputs and Outputs
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Reference Level: +4 dBu (-20 dB FSD)
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Impedance: 110 Ohm, balanced (XLR)
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Signal Format: AES-3 (AES/EBU)
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AES-3 Input Compliance: 24-bit with selectable sample rate conversion, 32 kHz to 96kHz input sample rate
capable.
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AES-3 Output Compliance: 24-bit
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Digital Reference: Internal (network timebase) or external reference 48 kHz, +/- 2 ppm
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Internal Sampling Rate: 48 kHz
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Output Sample Rate: 44.1 kHz or 48 kHz
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A/D Conversions: 24-bit, Delta-Sigma, 256x oversampling
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D/A Conversions: 24-bit, Delta-Sigma, 256x oversampling
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Latency <3 ms, mic in to monitor out, including network and processor loop
Frequency Response
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Any input to any output: +0.5 / -0.5 dB, 20 Hz to 20 kHz
Dynamic Range
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Analog Input to Analog Output: 102 dB referenced to 0 dBFS, 105 dB "A" weighted to 0 dBFS
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Analog Input to Digital Output: 105 dB referenced to 0 dBFS
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Digital Input to Analog Output: 103 dB referenced to 0 dBFS, 106 dB "A" weighted
Specifications and Warranty
Version 1.2 July 2010
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