Mackie Big Knob Owner's Manual - Page 16

Appendix C: Technical Info

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BIG KNOB Appendix C: Technical Info Big Knob Specifications 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, 150Ω 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 16 BIG KNOB 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 kΩ) DAW Phone Mix Input to: Phones Amp Outputs 14 dB Studio Output 24 dB Phones 1 and 2 Outputs 24 dB (output loaded @ 100 kΩ) 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 kΩ) Input Impedance Line Input 24 kΩ balanced 12 kΩ unbalanced Phono Input 47 kΩ || 220 pF Output Impedance Line Output 300 Ω balanced 150 Ω unbalanced Headphone Output 150 Ω

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BIG KNOB
BIG KNOB
16
Appendix C: Technical Info
Big Knob Specifications
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