Introduction
This manual provides essential information for the proper setup, operation, and maintenance of your Tascam US-144MKII USB Audio Interface. The US-144MKII is a compact, bus-powered USB 2.0 audio/MIDI interface designed for high-quality recording on Mac and Windows computers. It offers two microphone inputs with phantom power, two line inputs, a switchable guitar input, MIDI I/O, and S/PDIF digital audio I/O, supporting up to 96kHz/24-bit audio resolution.
Veuillez lire attentivement ce manuel avant d'utiliser l'appareil afin de garantir une utilisation sûre et optimale.
Consignes de sécurité
Always observe the following safety precautions to prevent electric shock, short circuit, damages, fire, or other hazards.
- Do not open the unit or attempt to disassemble the internal parts or modify them in any way.
- N'exposez pas l'appareil à la pluie, utilisez-le près de l'eau ou dans damp ou humides, ou placez-y des récipients contenant des liquides qui pourraient se renverser dans les ouvertures.
- If the USB cable becomes frayed or damaged, or if the unit is dropped or damaged, disconnect the USB cable immediately and have the unit inspected by qualified service personnel.
- Do not place the unit in a location where it may be exposed to excessive dust, vibrations, extreme cold or heat, or direct sunlight.
- Assurez une ventilation adéquate autour de l'appareil pendant son fonctionnement.
Contenu du colis
Vérifiez que votre colis contient les éléments suivants :
- Tascam US-144MKII USB Audio Interface unit
- Câble USB 2.0
- Installation CD (for drivers and bundled software like Steinberg Cubase LE4)
- Manuel de l'utilisateur (ce document)
Produit terminéview
Panneau avant

The front panel of the US-144MKII features all primary controls and input jacks for easy access during recording and monitoring.
- Bouton D'ENTRÉE : Adjusts the input gain for the microphone and line inputs.
- MON MIX Knob: Blends the direct input signal with the computer playback signal for zero-latency monitoring.
- LINE OUT Knob: Controls the output level to your studio monitors.
- Bouton TÉLÉPHONE : Régule le niveau de sortie du casque.
- Commutateur MONO : Sums the stereo input signal to mono for monitoring.
- Entrées MIC/LINE (G/D) : Prises combo XLR/TRS pour connecter des microphones ou des instruments de niveau ligne.
- Interrupteur d'alimentation PHANTOM : Active l'alimentation fantôme +48V pour les microphones à condensateur.
- SIG/OL Indicators: Lights green when a signal is present, red when the input is overloading.
- LINE/GUITAR IN (R): 1/4-inch input for line-level or high-impedance guitar/bass signals.
Panneau arrière

The rear panel provides various connectivity options for your studio setup.
- SORTIE LIGNE (G/D) : RCA outputs for connecting to powered studio monitors or an amplifier.
- MIDI IN/OUT : 5-pin DIN connectors for connecting MIDI devices such as keyboards or drum machines.
- DIGITAL IN/OUT (S/PDIF): Coaxial RCA connectors for digital audio input and output.
- Port USB : Permet de connecter l'interface à votre ordinateur pour le transfert de données et l'alimentation.
Installation
Installation du pilote
Before connecting the US-144MKII to your computer, it is crucial to install the latest drivers. The included CD may contain outdated drivers. For optimal performance and compatibility, always download the most current drivers directly from the official Tascam website. This ensures proper functionality and avoids potential issues, especially with newer operating systems.
- Visit the official Tascam support website.
- Locate the support page for the US-144MKII.
- Téléchargez le pilote approprié pour votre système d'exploitation (Windows ou macOS).
- Follow the on-screen instructions to install the driver. Do not connect the US-144MKII until prompted by the installer, or until the installation is complete.
Connexion de l'interface
- Connect the US-144MKII to your computer using the supplied USB 2.0 cable. The unit is bus-powered, so no external power adapter is required.
- Connect your microphones to the MIC/LINE Inputs (L/R) using XLR cables. If using condenser microphones, ensure the PHANTOM Power L'interrupteur est enclenché.
- Connect line-level instruments (e.g., synthesizers) to the MIC/LINE Inputs (L/R) using 1/4-inch TRS cables, or a guitar/bass to the LINE/GUITAR IN (R).
- Connectez vos moniteurs de studio au SORTIE DE LIGNE (G/D) prises RCA.
- Connect headphones to the 1/4-inch headphone jack on the front panel.
- If using MIDI devices, connect them to the MIDI IN / OUT ports.
Opérationnel
Flux de travail d'enregistrement de base
- Mise sous tension : Connect the US-144MKII to your computer via USB. The unit will power on automatically.
- Configuration du logiciel: Open your Digital Audio Workstation (DAW) software (e.g., Cubase LE4, included). Go to the audio settings/preferences and select the Tascam US-144MKII as your audio input and output device.
- Ajustement du gain d'entrée : Connect your microphone or instrument. Speak into the microphone or play your instrument at the loudest expected level. Adjust the SAISIR bouton jusqu'à ce que le SIG/OL indicator lights green consistently, only occasionally flashing red on peaks. Avoid constant red illumination, which indicates clipping.
- Surveillance:
- For zero-latency monitoring, adjust the MON MIX knob. Turning it towards "INPUT" increases the direct signal from your microphone/instrument, while turning it towards "COMPUTER" increases the playback from your DAW. Find a balance that allows you to hear both clearly without delay.
- Adjust your headphone volume using the TÉLÉPHONES knob and monitor speaker volume using the LINE OUT bouton.
- Enregistrement: Create a new audio track in your DAW, select the appropriate input (e.g., Input 1 for Mic L), and arm the track for recording. Press record in your DAW to begin.
Utilisation de l'alimentation fantôme
If you are using a condenser microphone, it requires +48V phantom power. Ensure the microphone is connected before activating phantom power. Press the FANTÔME power switch on the front panel. The corresponding LED will illuminate. Always disengage phantom power before disconnecting condenser microphones.
Connectivité MIDI
The US-144MKII includes MIDI In and Out ports. Connect your MIDI keyboard, controller, or other MIDI devices to these ports. Your DAW software will recognize the US-144MKII as a MIDI interface, allowing you to send and receive MIDI data for controlling virtual instruments or external hardware.
Entretien
- Nettoyage: Utilisez un chiffon doux et sec pour essuyer l'extérieur de l'appareil. N'utilisez pas de nettoyants abrasifs, de cires ni de solvants.
- Stockage: When not in use for extended periods, disconnect the USB cable and store the unit in a clean, dry place away from extreme temperatures.
- Entretien des câbles : Avoid bending or crimping USB and audio cables excessively. Store them neatly to prevent damage.
Dépannage
- No Sound/Device Not Recognized:
- Ensure the latest drivers are installed from the Tascam website.
- Verify the USB cable is securely connected to both the interface and the computer. Try a different USB port or cable.
- Check your computer's sound settings and your DAW's audio preferences to ensure the US-144MKII is selected as the input/output device.
- Restart your computer and the interface.
- Latency Issues (Delay in Monitoring):
- Utilisez le MON MIX knob for zero-latency hardware monitoring.
- In your DAW, reduce the buffer size in the audio settings. Lower buffer sizes reduce latency but require more CPU power.
- Ensure your computer meets the minimum system requirements for your DAW and the interface.
- Noisy Sound/Interference:
- Vérifiez la sécurité et l'intégrité de toutes les connexions de câbles.
- Assurez-vous d'un gain appropriétaging; avoid setting input levels too high, which can cause clipping and distortion.
- Try using a different USB port, preferably one directly on your computer's motherboard rather than a hub.
- Keep the interface away from other electronic devices that might cause interference.
- Interface Disconnects on Mac Sleep:
- This can be a known behavior with some Mac systems. Try adjusting your Mac's energy saver settings to prevent USB ports from sleeping.
- If the issue persists, you may need to unplug and re-plug the USB cable, and re-select the interface in your DAW's preferences after your Mac wakes up.
- Problèmes d'alimentation fantôme :
- Ensure the microphone is properly connected before engaging phantom power.
- Verify the microphone itself is functional and requires +48V phantom power.
Caractéristiques
| Fonctionnalité | Détail |
|---|---|
| Numéro de modèle | US144MKII |
| Interface matérielle | USB 2.0 |
| Résolution audio | Jusqu'à 96 kHz/24 bits |
| Entrées micro | 2 x XLR with +48V Phantom Power |
| Entrées de ligne | 2 x 1/4-inch balanced |
| Entrée instrument | 1 x 1/4-inch switchable guitar level (shared with Line Input R) |
| Sortie casque | 1 x 1/4-inch stereo with independent level control |
| Sorties ligne | 2 x RCA unbalanced with independent level control |
| E / S MIDI | Yes (5-pin DIN In/Out) |
| E/S numériques | S/PDIF Coaxial In/Out |
| Alimentation électrique | Alimenté par bus USB |
| Appareils compatibles | Personal Computer (Mac/Windows) |
| Dimensions (L x P x H) | 7.5 x 5 x 2.5 pouces (environ) |
| Poids | 2.5 livres (environ) |
Garantie et assistance
For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official Tascam webSur ce site, vous trouverez des ressources d'assistance détaillées, une FAQ et les coordonnées du service client.
Tascam Officiel Website: https://tascam.com/us/





