KNOB

Appendix C: Technical Info

BIG

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

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

150Ω

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BIG KNOB