Mackie - Big Knob - Studio Command System - C03 (NR.2)

For sale: a Mackie Big Knob Studio Command System, a practical studio monitor controller designed for managing multiple audio sources, monitor speakers, and headphone feeds from one central desktop unit.

The Big Knob is well suited to project studios, production rooms, and editing setups where fast source selection and convenient volume control are important.

Cosmetic condition:

The unit is in used condition but remains very clean overall.

• Minimal signs of previous use
• Housing and controls are clean and presentable
• No notable cosmetic damage
• Overall well-preserved appearance
• Please review the photos for the exact condition

🎚️ Functional status

✔ Fully working
✔ Main volume control tested
✔ Inputs and outputs checked
✔ Monitor and source-selection functions tested
✔ Ready for studio use

Specs:

• Type: Studio monitor controller / studio command system
• Frequency Response:
  • 10 Hz – 50 kHz, +0/−1 dB
  • 5 Hz – 100 kHz, +0/−3 dB
• Phono RIAA Accuracy: ±0.5 dB, 20 Hz – 20 kHz
• Dynamic Range:
  • Line inputs: 112 dB minimum
  • Phono input: 93 dB minimum
• Noise Floor: −90 dBu typical
• Equivalent Input Noise: 0.89 µV / −119 dBu maximum
• Crosstalk:
  • Adjacent inputs: 90 dB at 1 kHz
  • Left-to-right/right-to-left: 70 dB at 1 kHz
• Input Trim Range: ±10 dB
• Output Trim Range: −14 dB to 0 dB
• Dim Attenuation: −20 dB
• Maximum Monitor Output Gain: 34 dB
• Maximum Studio Output Gain: 34 dB
• Maximum Headphone Output Gain: 34 dB

Input Levels

• Line Inputs, +4 dB setting: +4 dBu nominal / +28 dBu maximum
• Line Inputs, −10 dB setting: −10 dBu nominal / +14 dBu maximum
• Phono Input: 5 mV nominal / 79 mV maximum

Output Levels

• Line Outputs, +4 dB setting: +4 dBu nominal / +22 dBu maximum
• Line Outputs, −10 dB setting: −10 dBu nominal / +8 dBu maximum

Impedance

• Balanced Line Input: 24 kΩ
• Unbalanced Line Input: 12 kΩ
• Phono Input: 47 kΩ / 220 pF
• Balanced Line Output: 300 Ω
• Unbalanced Line Output: 150 Ω
• Headphone Output: 150 Ω

Metering & Talkback

• Input Meters: 6-segment LED meters
• Meter Indicators: OL, +8, 0, −4, −8 and −24 dB
• Talkback AGC Range: ±15 dB
• Talkback Output Range: Off to +10 dB
• Nominal Microphone Sensitivity: 80 dB SPL

Connections & Control

• Three selectable monitor outputs
• Dedicated studio output
• Two independent headphone outputs
• DAW input and output connections
• Two stereo 2-track inputs and outputs
• Dedicated phono input
• Built-in talkback microphone
• Mono, mute and dim functions
• Separate source and monitor selection

Dimensions (LxWxH): 343 × 150 × 81 mm
Weight: 5 Kg
Volts: 100-240v (If it’s 200V or higher, you’ll need an adapter in the USA)

We ship worldwide.
For international shipping, import fee's apply. These vary per countrie, and are for the buyer to pay.
-Shipping in the EU up to 30 KG (max)
-Shipping outside of the EU up to 20 KG (max) Shown costs might vary. Please ask us for a shipping quote for the best rates!
-We kindly ask you to reach out for the best shiping rates. As rates vary per shipper, we can ask custom shipping quotes.

Please note: ‘’Whenever an item exceeds the weight noted above. Please ask for a shipping quote before making a purchase. The shipping costs are estimated in our shop because we do not know the shipping address. 

Picking up the item is also possible. It can be picked up in Alkmaar 

Delivery by us is also possible in some cases. Please reach out to us for more information about deliveries 

State of listing: If a listing is listed ''for parts or not working'' returns are not accepted.

When we offer our products with the notice ''Serviced'' or ''Fully serviced'' that means the device is either ''serviced'' with a new belt, and cleaned the pots, Or ''Fully serviced'' recapped, Quiescent current adjusted etc as expected from a full service