1. Įvadas
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.

Image 1.1: Front perspective view of the MOTU M4 4x4 USB-C Audio Interface.
2. Sąranka
Follow these steps to set up your MOTU M4 audio interface.
2.1. Sistemos reikalavimai
- Operacinė sistema: macOS (10.11 or later), Windows (7 or later), iOS (compatible devices).
- Ryšys: Available USB-C or USB-A port (with adapter).
- Programinė įranga: Internet connection for driver and software downloads.
2.2. Tvarkyklės diegimas
- Visit the official MOTU websvetainė (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. Aparatinės įrangos ryšys
- 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.
- Prijunkite studijinius monitorius prie Monitor Out (L/R) lizdai galiniame skydelyje.
- 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.

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

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. Priekinio skydelio valdikliai

3.1 pav.: Išsamus 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 rankenėlės: Adjust the input level for IN 1L and IN 2R.
- 48V mygtukai: 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 ekranas: Displays precise metering for all inputs and outputs.
- MONITORIAUS rankenėlė: 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. Galinio skydelio jungtys
- Maitinimo mygtukas: Įjungia arba išjungia įrenginį.
- 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.
- MONITORIAUS IŠĖJIMAS (K/D): Balanced 1/4-inch TRS outputs for connecting to your main studio monitors.
- LINIJOS ĮĖJIMAS (3–4): Unbalanced RCA inputs for connecting line-level sources.
3.3. Key Features in Operation
- Aparatinės įrangos stebėjimas: The MON buttons and INPUT/PLAYBACK Mix knob allow for zero-latency monitoring of your input signals, crucial for recording.
- Atgalinio ryšio funkcionalumas: 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.
- Didelės raiškos garsas: The M4 supports audio resolutions up to 192 kHz, ensuring high-fidelity recordings and playback.

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

Image 3.3: The MOTU M4 connected to a MIDI keyboard, illustrating its use with various musical instruments.
4. Priežiūra
Proper maintenance ensures the longevity and optimal performance of your MOTU M4.
- Valymas: Išorinį įrenginio paviršių valykite minkštu, sausu skudurėliu. Venkite abrazyvinių valiklių ar tirpiklių.
- Saugykla: Store the M4 in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
- Firmware atnaujinimai: Periodically check the MOTU website for firmware updates. Keeping your device's firmware current can improve performance and add new features.
- Kabelių valdymas: Įsitikinkite, kad visi laidai yra tvarkingai išdėstyti ir neįtempti, kad nepažeistumėte jungčių ir prievadų.
5. Problemų sprendimas
If you encounter issues with your MOTU M4, refer to the following common troubleshooting steps.
5.1. Nėra garso išvesties
- Patikrinkite visas laidų jungtis (USB, monitorių, ausinių).
- 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
- Patikrinkite įvesties kabelio jungtis.
- 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. Ryšio problemos
- Išbandykite kitą kompiuterio USB-C prievadą.
- Įsitikinkite, kad USB laidas yra tvirtai prijungtas abiejuose galuose.
- Restart your computer and the MOTU M4.
- Reinstall the MOTU M4 drivers.
For further assistance, please refer to the official MOTU support resources.
6. Specifikacijos
| Funkcija | Detalė |
|---|---|
| Prekės ženklas | MOTU |
| Suderinami įrenginiai | Personal Computer, iOS Devices |
| Palaikoma programinė įranga | Performer Lite, Live Lite production (and any Core Audio/ASIO compatible DAW) |
| Ryšio technologija | USB-C |
| Kanalų skaičius | 4-in/4-out (8 total channels including loopback) |
| Mikrofonas Preamps | 2 (with +48V phantom power) |
| Stebėjimas | Hardware Monitoring, Input/Playback Mix |
| Ekranas | Full-color LCD metering |
| Galia | Maitinamas iš USB magistralės |
7. Garantija ir palaikymas
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 websvetainėje, kurioje pateikiamos išsamios garantijos sąlygos.
For technical support, driver updates, and additional resources, please visit the official MOTU support page:
Prieš kreipiantis į palaikymo tarnybą, rekomenduojama dar kartąview the troubleshooting section of this manual and the FAQ section on the MOTU support websvetainę.





