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Mackie Big Knob Studio Command System Manual De Usuario

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BIG KNOB
BIG KNOB
Appendix C: Technical Info
Big Knob Specifi cations
Frequency Response 
Line-level Inputs and Outputs 
 
 
 
 +0, 
–1 dB, 10 Hz to 50 kHz
 +0, 
–3 dB, 5 Hz to 100 kHz
RIAA Equalization Deviation (Phono Input)
 
± 0.5 dB from 20 Hz to 20 kHz 
Distortion (THD & IMD)
Line-level Inputs to Line-level Outputs (unity gain)
 
> 0.015%, 20 Hz to 20 kHz @ +4 dBu
RIAA Input, Nominal Gain
 
> 0.015%, 20 Hz to 20 kHz @ +4 dBu
Noise Floor 
(20 kHz Bandwidth, +4 dB level setting, 150
Ω source) 
Unity Gain, with DAW, 2-Track A, and 2-Track B Assigned
 
–86 dBu maximum (all outputs)
Monitor A, B, and C Outputs, Studio Output, DAW, 2-Track A, 
and 2-Track B Outputs
 
–90 dBu typical
Phono Input (nominal 41.8 dB gain @ 1 kHz, inputs shorted)
 
–71 dBu maximum (all outputs)
Equivalent Input Noise (E.I.N.)
 
0.89 µV / –119 dBu maximum
Dynamic Range
Line Inputs
 
112 dB minimum
Phono Input
 
93 dB minimum
Common Mode Rejection Ratio
(20 Hz to 20 kHz @ +4 dB level setting)
 
34 dB minimum
 
40 dB typical
Crosstalk
Adjacent Inputs
 
90 dB @ 1 kHz
Left to Right/Right to Left
 
70 dB @ 1 kHz
Muted/Level Off
 
90 dB @ 1 kHz
Trim Control Range
Input Trim Controls (Center Detented)
 ±10 
dB 
Output Trim Controls
 
–14 dB to 0 dB
Dim Switch
 0 
dB/–20 dB
Rated Input Voltage 
Line Inputs (+4 dB Level Setting)
 
+4 dBu/+28 dBu (nominal/maximum)
Line Inputs (–10 dB Level Setting)
 
–10 dBu/+14 dBu (nominal/maximum)
RIAA Input (@ 1 kHz, nominal gain)
 
5 mV/79 mV (nominal/maximum)
Rated Output Voltage
All Line-level Outputs (+4dB Level Setting)
 
+4 dBu/+22 dBu (nominal/maximum)
All Line-level Outputs (–10 dB Level Setting)
 
–10 dBu/+8 dBu (nominal/maximum)
Maximum Voltage Gain
DAW, 2-Track A, and 2-Track B Input to: 
Monitor A, B, and C Outputs 
 
 
 
 34 
dB
DAW, 2-Track A, 2-Track B, and Phones Amp Outputs
 24 
dB
Studio Output
 34 
dB
Phones 1 and 2 Outputs
 
34 dB (output loaded @ 100 k
Ω)
DAW Phone Mix Input to: 
Phones Amp Outputs
 14 
dB
Studio Output
 24 
dB
Phones 1 and 2 Outputs
 
24 dB (output loaded @ 100 k
Ω)
Phono Input @ 1 kHz to: 
Monitor A, B, and C Outputs 
 
 
 
 67.8 
dB
DAW, 2-Track A, 2-Track B, and Phones Amp Outputs
 57.8 
dB
Studio Output
 67.8 
dB
Phones 1 and 2 Outputs
 
67.8 dB (output loaded @ 100 k
Ω)
Input Impedance
Line Input
 24 
k
Ω balanced
 12 
k
Ω unbalanced
Phono Input
 47 
k
Ω || 220 pF
Output Impedance
Line 
Output 
     
 300 
Ω balanced
 150 
Ω unbalanced
Headphone 
Output      
 150 
Ω