Mackie Big Knob


The Mackie Big Knob Studio Command System is a simple yet powerful desktop audio control center.

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The Mackie BIG KNOB is a compact, moderately priced, tabletop control room speaker selector and router unit, that effectively replaces the monitoring section of a mixing board in the often console-less professional and project DAW recording studio. The versatility of this unit invites possible use as an audio control center for a more elaborate home stereo or Home Theater system, as well.

The BIG KNOB actually has one, in the form of a large, robust, high precision volume control knob that services a generous array of selector switches and monitoring options. Speaking of volume, this is a very high output piece of gear, with lots of headroom.

The BIG KNOB switches are all equipped with activity LED indicators, and the built-in Talkback mic, dual Headphone outputs, and main Studio Outs all provide an independent volume control knob. The rear panel Monitor and Studio Out connector sections, in addition to each of the source inputs, are equipped with individual trim controls, as well.

All function switches, selector switches, and connectors are very clearly labeled and ruggedly housed; the emphasis in the design of the BIG KNOB is on intuitive setup, simplified navigation, and clean sound. The refreshingly sleek and modest appearance, ergonomically and logically presented, indicates a sense of real world understanding and experience on the part of Mackie's engineering team.

Tabletop control room monitoring source and speaker selector
Large, robust, high-precision volume control knob
Monitor A, B and C selector switches with LED's and connectors for 3 separate pairs of powered studio monitors, subwoofers or power amplifiers
Dedicated trim controls for all Monitor output connector sections
Dual headphone outputs, each with independent volume control; dedicated headphone mix bus and separate headphone amp outputs
4 Input Source Select switches with LED's
Mute, Dim and Mono monitoring switches with LED's
Built-in omnidirectional condenser talkback mic
Talkback control section with separate level control and individual 2-track and headphone or studio routing selector switches
Phono preamp with trim control for direct connection to turntables
Dedicated DAW mix input with trim control
Trim controls for all Source input connector sections
Stereo Studio Outs with dedicated switch and volume control, separate trim control for Studio Out connector section
Balanced or unbalanced +4/-10 operation for all connectors; balanced/unbalanced selector switches for 2-Track A and B, DAW Mix and DAW Phones Mix input sections, 2-Track A and B, DAW Output, and Phones Amp output sections
Dual Voltage power supply


Input Impedance Line Input:
24 kOhms(Balanced)
12 kOhms(Unbalanced)
Phono Input:
47 kOhms/220 pF
Output Impedances Line Output:
300 Ohms(Balanced)
150 Ohms(Unbalanced)
Headphone Output:
150 Ohms
Sensitivity (0 VU) 80 dB SPL nominal(Talkback Microphone)
Maximum Input Level Line Inputs, Balanced: +28 dBu
Line Inputs, Unbalanced: +14 dBu
RIAA Input @ 1 kHz, Nominal Gain: 79 mV
Maximum Output Level Line Outputs, Balanced: +22 dBu
Line Outputs, Unbalanced: +8 dBu
Noise Unity Gain: -86 dBu max., with DAW, 2-Track A, B Assigned*
Monitor A, B, and C Outputs: -90 dBu typical*
Studio Output: -90 dBu typical*
DAW, 2-Track A and B Outputs: - 90 dBu typical*
Phono Input: -71 dBu max.(all outputs)**
Equivalent Input Noise: 0.89 uV, -119 dBu max.
*20 kHz Bandwidth, +4 dB level setting, 150 Ohm source
**Nominal 41.8 dB Gain @ 1 kHz, inputs shorted
THD + N >0.015%, 20 Hz - 20 kHz @ +4 dBu(Line Level, Inputs to Outputs, Unity Gain)
0.015%, 20 Hz - 20 kHz @ +4 dBu(RIAA Input, Nominal Gain)
Crosstalk Adjacent Inputs: 90 dB @ 1 kHz
Left to Right/Right to Left: 70 dB @ 1 kHz
Muted/Level Off: 90 dB @ 1 kHz
Input Connections 2 x 1/4" TRS Phone DAW Phones Mix In, Bal/Unbal
2 x 1/4" TRS(L/Mono, R) 2-Track A In, Bal/Unbal
2 x 1/4" TRS(L/Mono, R) 2-Track B In, Bal/Unbal
2 x 1/4" TRS(L/Mono, R) DAW Mix In, Bal/Unbal
2 x RCA Phono(L, R) RIAA Phono In
1 x 1/4" TS Phone Talkback Footswitch In
Output Connectors 6 x 1/4" TRS Phone Monitor A,B,C Out, Bal/Unbal
2 x 1/4" TRS Phone 2-Track A Out, Bal/Unbal
2 x 1/4" TRS Phone 2-Track B Out, Bal/Unbal
2 x 1/4" TRS Phone DAW Out, Bal/Unbal
2 x 1/4" TRS Phone Phones Amp Out, Bal/Unbal
2 x 1/4" TRS Phone Studio Out, Bal/Unbal
Speaker Output 1/4" TRS Phone, +4 dB/-10dB Switchable(Powered Speakers Only)
Speaker Switching 3 x Selector Switches with LED's
Meters 6-Segment LED:
-24 dB, -8 dB, -4 dB, 0 dB, +8 dB, OL
Talkback Mic Yes, Internal Omnidirectional Electret Condenser
Talkback Mic Input No
Headphone Output Yes, x2
Dimensions 13.5 x 3.2 x 5.9" (343 x 89 x 150mm)
Weight 3.5 lb (1.6 kg)


Packaging Info
Package Weight 8.15 lb
Box Dimensions (LxWxH) 18.1 x 8.9 x 5.3"



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