Axia DESQ, Инструкция по установке и эксплуатации

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Appendix A:
Specifications
Microphone Preamplifiers:
Source Impedance: 150 ohms
Input Impedance: 4 k ohms minimum, balanced
Nominal Level Range: Adjustable, -75 dBu to -20 dBu
Input Headroom: >20 dB above nominal input
Output Level: +4 dBu, nominal
analog line inputs:
Input Impedance: 20 k Ohms
Nominal Level Range: Selectable, +4 dBu or -10dBv
Input Headroom: 20 dB above nominal input
analog line Outputs:
Output Source Impedance: <50 ohms balanced
Output Load Impedance: 600 ohms, minimum
Nominal Output Level: +4 dBu
Maximum Output Level: +24 dBu
Digital audio inputs and Outputs:
Reference Level: +4 dBu (-20 dB FSD)
Impedance: 110 Ohm, balanced (XLR)
Signal Format: AES-3 (AES/EBU)
AES-3 Input Compliance: 24-bit with selectable sample
rate conversion, 20 kHz to 216kHz input sample rate
capable.
AES-3 Output Compliance: 24-bit
Digital Reference: Internal (network timebase) or external
reference 48 kHz, +/- 2 ppm
Internal Sampling Rate: 48 kHz
Output Sample Rate: 48 kHz
A/D Conversions: 24-bit, Delta-Sigma, 256x oversampling
D/A Conversions: 24-bit, Delta-Sigma, 256x oversampling
Latency <3 ms, mic in to monitor out, including network
and processor loop
Frequency response:
Any input to any output: +0.5 / -0.5 dB, 20 Hz to 20 kHz
Dynamic range
Analog Input to Analog Output: 102 dB referenced to 0
dBFS, 105 dB “A” weighted to 0 dBFS
Analog Input to Digital Output: 105 dB referenced to 0
dBFS
Digital Input to Analog Output: 103 dB referenced to 0
dBFS, 106 dB “A” weighted
Digital Input to Digital Output: 125 dB
Equivalent input noise
Microphone Preamp: -128 dBu, 150 ohm source, reference
-50 dBu input level
total Harmonic Dist noise
Mic Pre Input to Analog Line Output: <0.005%, 1 kHz, -38
dBu input, +18 dBu output
Analog Input to Analog Output: <0.008%, 1 kHz, +18 dBu
input, +18 dBu output
Digital Input to Digital Output: <0.0003%, 1 kHz, -20 dBFS
Digital Input to Analog Output: <0.005%, 1 kHz, -6 dBFS
input, +18 dBu output
crosstalk isolation, Stereo Separation and cMrr
Analog Line channel to channel isolation: 90 dB isolation
minimum, 20 Hz to 20 kH
Microphone channel to channel isolation: 80 dB isolation
minimum, 20 Hz to 20 kHz
Analog Line Stereo separation: 85 dB isolation minimum,
20Hz to 20 kHz
Analog Line Input CMRR: >60 dB, 20 Hz to 20 kHz
Microphone Input CMRR: >55 dB, 20 Hz to 20 kHz
Power Supply ac input, iQ core with
iQ console
Auto-ranging supply, 90VAC to 240VAC, 50 Hz to 60 Hz,
IEC receptacle, internal fuse
Power consumption: 100 Watts
Operating temperatures
-10 degrees C to +40 degrees C, <90% humidity,
no condensation
Dimensions
DESQ
W 15.31in (388.85 cm), H 15.30 in (388.72 cm), D 2.79 in
(57.15 cm)
RAQ
W 19.0 in (48 cm), H 3RU, 6.97 in (177.0 cm), D 2.54 in
(64.50 cm)
QOR.16
W 19 in (48 cm), H 2 RU, 3.47 in (8.80 cm), D 8.45 in (21.46
cm)
©2012 Axia Audio