MOTU M4 4x4 USB-C Audio Interface User Manual

1. Introduksjon

This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your MOTU M4 4x4 USB-C Audio Interface. The MOTU M4 is designed to deliver professional audio quality for recording, mixing, and monitoring, offering versatile connectivity and intuitive controls.

The MOTU M4 features 4 inputs and 4 outputs, including two microphone preamps, hardware monitoring, an LCD screen for metering, and loopback functionality, making it suitable for various audio production environments on Mac, PC, and iOS devices.

MOTU M4 4x4 USB-C Audio Interface, front perspective

Image 1.1: Front perspective view of the MOTU M4 4x4 USB-C Audio Interface.

2. Oppsett

Follow these steps to set up your MOTU M4 audio interface.

2.1. Systemkrav

Operativsystem: macOS (10.11 or later), Windows (7 or later), iOS (compatible devices).
Tilkobling: Available USB-C or USB-A port (with adapter).
Programvare: Internet connection for driver and software downloads.

2.2. Driverinstallasjon

Visit the official MOTU webnettstedet (motu.com/download) to download the latest drivers for your operating system.
Run the installer and follow the on-screen instructions. Restart your computer if prompted.
For iOS devices, ensure your device is updated to the latest iOS version. Drivers are typically not required for iOS.

2.3. Maskinvaretilkobling

Connect the MOTU M4 to your computer using the supplied USB-C cable. The device is bus-powered, so no external power supply is needed.
Koble studiomonitorene dine til Monitor Out (L/R) kontaktene på bakpanelet.
Plug in your headphones to the headphone jack on the front panel.
Connect microphones, instruments, or line-level sources to the appropriate input jacks on the front or rear panel.

Rear panel of the MOTU M4 showing USB-C, MIDI, and audio outputs

Image 2.1: Rear panel connections of the MOTU M4, including USB-C, MIDI In/Out, Line Out, Monitor Out, and Line In.

MOTU M4 connected to a computer with XLR cables and headphones

Image 2.2: The MOTU M4 connected to a computer, demonstrating typical studio setup with microphones and headphones.

3. Operating the MOTU M4

This section details the functions of the MOTU M4's controls and connections.

3.1. Kontroller på frontpanelet

Front panel of the MOTU M4 with detailed labels for inputs, gain, 48V, monitor mix, and LCD screen

Bilde 3.1: Detaljert view of the MOTU M4 front panel controls.

IN 1L / IN 2R (Mic/Line/Guitar Inputs): Combo XLR/TRS jacks for connecting microphones, line-level instruments, or guitars.
GAIN-knapper: Adjust the input level for IN 1L and IN 2R.
48V knapper: Engage +48V phantom power for condenser microphones on respective inputs.
MON Buttons: Enable direct hardware monitoring for inputs 1-2, allowing you to hear your input signal with zero latency.
INPUT / PLAYBACK Mix Knob: Blends the live input signal with the playback signal from your computer for monitoring.
INPUT MONITOR MIX (3-4) Button: Enables direct hardware monitoring for inputs 3-4 (Line In on the rear panel).
LCD-skjerm: Displays precise metering for all inputs and outputs.
MONITOR-knapp: Controls the main output volume for your studio monitors.
Headphone Output & Knob: 1/4-inch stereo jack and dedicated volume control for headphones.

3.2. Tilkoblinger på bakpanelet

Strømknapp: Slår enheten på eller av.
MIDI IN / OUT: Standard 5-pin DIN connectors for connecting MIDI devices.
USB-C: Connects to your computer or iOS device. Provides power and data.
LINE OUT (1-4): Balanced 1/4-inch TRS outputs for connecting to external gear.
MONITOR UT (V/H): Balanced 1/4-inch TRS outputs for connecting to your main studio monitors.
LINE IN (3-4): Unbalanced RCA inputs for connecting line-level sources.

3.3. Viktige funksjoner i drift

Hardware Monitoring: The MON buttons and INPUT/PLAYBACK Mix knob allow for zero-latency monitoring of your input signals, crucial for recording.
Loopback Functionality: The M4 includes loopback channels, enabling you to route computer output back into your recording software. This is useful for podcasting, live streaming, and capturing computer audio.
Høyoppløselig lyd: The M4 supports audio resolutions up to 192 kHz, ensuring high-fidelity recordings and playback.

MOTU M4 connected to an iPad and drum kit, demonstrating iOS compatibility

Image 3.2: The MOTU M4 in use with an iPad and drum kit, highlighting its compatibility with iOS devices for mobile recording.

MOTU M4 connected to a MIDI keyboard, demonstrating instrument connectivity

Image 3.3: The MOTU M4 connected to a MIDI keyboard, illustrating its use with various musical instruments.

4. Vedlikehold

Proper maintenance ensures the longevity and optimal performance of your MOTU M4.

Rengjøring: Bruk en myk, tørr klut til å rengjøre utsiden av enheten. Unngå slipende rengjøringsmidler eller løsemidler.
Lagring: Store the M4 in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
Fastvareoppdateringer: Periodically check the MOTU website for firmware updates. Keeping your device's firmware current can improve performance and add new features.
Kabeladministrasjon: Ensure all cables are neatly organized and not under strain to prevent damage to connectors and ports.

5. Feilsøking

If you encounter issues with your MOTU M4, refer to the following common troubleshooting steps.

5.1. Ingen lydutgang

Sjekk alle kabeltilkoblinger (USB, skjermer, hodetelefoner).
Ensure the MONITOR and Headphone volume knobs are turned up.
Verify that the M4 is selected as the audio output device in your computer's sound settings and your Digital Audio Workstation (DAW).
Confirm that the LCD screen shows output metering activity.

5.2. No Input Signal

Sjekk inngangskabeltilkoblingene.
Adjust the GAIN knobs for the active inputs.
If using a condenser microphone, ensure +48V phantom power is engaged.
Verify that the M4 is selected as the audio input device in your computer's sound settings and your DAW.
Confirm that the LCD screen shows input metering activity.

5.3. Tilkoblingsproblemer

Prøv en annen USB-C-port på datamaskinen din.
Sørg for at USB-kabelen er ordentlig koblet til i begge ender.
Restart your computer and the MOTU M4.
Reinstall the MOTU M4 drivers.

For further assistance, please refer to the official MOTU support resources.

6. Spesifikasjoner

Trekk	Detalj
Merke	MOTU
Kompatible enheter	Personal Computer, iOS Devices
Støttet programvare	Performer Lite, Live Lite production (and any Core Audio/ASIO compatible DAW)
Tilkoblingsteknologi	USB-C
Antall kanaler	4-in/4-out (8 total channels including loopback)
Mikrofon Preamps	2 (with +48V phantom power)
Overvåking	Hardware Monitoring, Input/Playback Mix
Utstilling	Full-color LCD metering
Makt	USB-bussdrevet

7. Garanti og støtte

The MOTU M4 4x4 USB-C Audio Interface comes with a manufacturer's warranty. Please refer to the warranty card included with your product or visit the official MOTU webnettstedet for detaljerte garantivilkår.

For technical support, driver updates, and additional resources, please visit the official MOTU support page:

MOTU Support Webnettstedet

Før du kontakter support, anbefales det å re-view the troubleshooting section of this manual and the FAQ section on the MOTU support webnettstedet.