Mackie BIG KNOB STUDIO 3x2 Monitor Controller & USB Interface

The Mackie BIG KNOB STUDIO is a desktop monitor controller and 3x2 USB audio interface for recording, playback, and hands-on studio monitoring. It centralizes source selection, speaker switching, headphone monitoring, and volume control in one compact unit. This helps reduce the need to control essential listening functions through a computer or separate interface controls.

It is suited to home studios, project studios, podcasting spaces, editing rooms, and recording setups using a computer-based DAW. Two Onyx Wide-Z mic preamps accept microphones, line-level devices, and Hi-Z instruments through combo inputs. The controller also provides 48V phantom power for compatible condenser microphones.

The BIG KNOB STUDIO supports 24-bit USB audio at sample rates up to 192 kHz. Its specified analog frequency response is ±0.5 dB from 20 Hz to 20 kHz, with maximum input and output levels of +22 dBu. A direct-monitoring control blends live input signal with computer playback for recording without computer-monitoring latency.

Three selectable sources let you work between inputs 1/2, inputs 3/4, and USB playback. Two monitor-output pairs support connected powered studio monitors or amplifiers feeding passive speakers. Mono, mute, and 20 dB dim functions provide practical checks and level control during tracking or mixing.

The BIG KNOB STUDIO can serve as the central control point in a small recording and monitoring system. Its dual headphone outputs have independent level controls, while the built-in talkback microphone supports communication during sessions. A front-panel 1/8-inch stereo input adds a convenient connection for a phone, media player, or other line-level source.

Key Features

• 3x2 USB Interface: Records and plays back high-resolution computer audio.
• Dual Onyx Preamps: Connect microphones, line sources, or Hi-Z instruments.
• Three Source Selections: Switch between analog inputs and USB playback.
• Two Monitor Pairs: Compare mixes on two connected speaker systems.
• Direct Monitoring: Blend input and playback signals without computer latency.
• Dual Headphone Outputs: Give two listeners independent level control.

Design & Installation

Mackie does not specify an enclosure material for this model. The compact desktop layout places the large monitor-volume control, source buttons, monitor-select buttons, trim controls, metering, headphone controls, and talkback functions within reach. Its 9.9-inch-wide footprint is designed for placement on a studio desk or workstation.

Connect monitor outputs A and B to powered monitors, or to an amplifier connected to passive speakers, using 1/4-inch balanced or unbalanced cables. Connect the USB port to a computer, plug microphones or instruments into inputs 1 and 2, and use inputs 3/4 or the front 1/8-inch input for an additional stereo source. Use the supplied external power supply and AC line cord; PC users install the Mackie ASIO driver, while Mac systems recognize the unit as a 2x2 device without a driver.