1. Introducció
The Tascam US-4x4HR is a high-resolution 4-in/4-out USB audio and MIDI interface designed for musicians and producers. It facilitates multi-track recording, streaming, podcasting, and songwriting with professional audio quality. The device supports audio formats up to 24-bit/192kHz and features Ultra-HDDA microphone preamps for clear sound capture.

Image: The Tascam US-4x4HR in a studio environment, showcasing its use for music production.
2. Configuració
2.1 Requisits del sistema
The US-4x4HR is compatible with Windows, macOS, iOS, and iPadOS operating systems. Ensure your system meets the minimum requirements for stable operation.
2.2 Instal·lació del controlador
Before connecting the interface, download and install the latest drivers from the official Tascam website. For Windows users, the Tascam native driver provides low-latency performance. Follow the on-screen instructions for installation and restart your computer if prompted.

Image: Tascam driver settings interface, illustrating buffer size selection for optimized performance.
2.3 Connexió de maquinari
- Connect the US-4x4HR to your computer using the supplied USB-C cable.
- Connect the included AC adapter to the CC EN 12V port on the rear panel and plug it into a power outlet. The AC adapter is required for stable operation, especially when using +48V phantom power.
- Connect your microphones, instruments, or studio monitors to the appropriate input/output jacks.

Image: The US-4x4HR connected to an iPad, demonstrating its compatibility with iOS devices.
2.4 Instal·lació del programari
The US-4x4HR includes a professional software bundle to enhance your recording and production workflow. Install the following applications as needed:
- Cubase LE: For recording and mixing.
- SampleTank 4 SE: A sound library with over 2,000 instruments.
- Auto-Tune Unlimited: A 3-month subscription for vocal processing.

Imatge: Més deview of the bundled software included with the Tascam US-4x4HR.
3. Funcionament
3.1 Controls del panell frontal

Imatge: Detall frontal view of the US-4x4HR, highlighting all accessible controls and inputs.
- Inputs (IN1-IN4): These are XLR/TRS combo jacks. Connect microphones via XLR or line-level instruments via 1/4" TRS cables. Inputs 1 and 2 also support direct guitar input.
- Poms de guany: Adjust the input level for each channel. Turn clockwise to increase gain.
- SIG/PEAK Indicators: The green LED indicates a signal is present. The red LED indicates the signal is clipping; reduce the gain to prevent distortion.
- Interruptor d'alimentació fantasma +48V: Activates +48V phantom power for condenser microphones. This switch applies phantom power to all four inputs simultaneously. Ensure the AC adapter is connected for proper phantom power operation.
- Monitor Balance Knob: Adjusts the blend between the direct input signal and the audio playback from your computer.
- Line Out 1-2: Main stereo outputs for connecting to studio monitors or other playback systems.
- Phones 1 & 2: Two independent headphone outputs with dedicated volume controls for monitoring.
3.2 Connexions del panell posterior

Imatge: Part posterior detallada view of the US-4x4HR, highlighting all connection ports.
- TRS Line Outputs (1-4): Balanced outputs for connecting to external mixers, amplificadors o altres equips d'àudio.
- MIDI IN / OUT: Connect MIDI keyboards, drum machines, controllers, and other MIDI-compatible devices for synchronization and control.
- Port USB tipus C: Connects the interface to your computer or compatible mobile device.
- CC EN 12V: Power input for the included AC adapter.

Image: Close-up of the MIDI IN/OUT ports, illustrating connectivity for external MIDI devices.
3.3 Direct Monitoring Function
The US-4x4HR features a zero-latency direct monitoring function. This allows you to hear your input signal directly from the interface before it reaches the computer, eliminating delay during recording and performance. Use the Monitor Balance knob to adjust the mix between your live input and computer playback.

Image: Diagram explaining the concept of zero-latency direct monitoring versus normal monitoring.
3.4 Funció de bucle
The integrated loopback function allows you to mix all four inputs with a stereo signal from your computer. This feature is particularly useful for creating podcasts and live streams, enabling you to combine microphone audio with computer playback for broadcast. The US-4x4HR also supports integration with Open Broadcaster Software (OBS Studio).

Image: Diagram demonstrating the loopback function for combining multiple audio sources for streaming.

Image: A user engaged in podcasting or live streaming with the US-4x4HR interface.
4. Manteniment
4.1 Neteja
To clean the US-4x4HR, use a soft, dry cloth. Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish and internal components.
4.2 Emmagatzematge
Store the unit in a cool, dry place away from direct sunlight, extreme temperatures, and excessive humidity. When not in use for extended periods, disconnect all cables and store the unit in its original packaging or a protective case.
4.3 Durabilitat
The US-4x4HR features a robust metal casing and aluminum side panels, providing durability and stability. Its balanced weight helps keep it stable when cables are connected or disconnected.

Imatge: Primer pla view of the US-4x4HR's durable metal construction and side panel.
5. Solució De Problemes
If you encounter issues with your Tascam US-4x4HR, consider the following common solutions:
- Sense sortida d'àudio: Check all cable connections, ensure volume knobs (gain, monitor, headphone) are turned up, and verify that the US-4x4HR is selected as the audio input/output device in your computer's sound settings and your Digital Audio Workstation (DAW).
- Àudio distorsionat: Reduce the input gain on the US-4x4HR to prevent clipping (red PEAK LED). Check your DAW's sample rate and buffer size settings; a higher buffer size can reduce distortion but increase latency.
- Phantom Power Not Working: Ensure the AC adapter is securely connected to the US-4x4HR. Phantom power requires external power and will not function reliably with bus power alone.
- Interfície no reconeguda per l'ordinador: Reinstall the latest drivers from the Tascam website. Try connecting the USB cable to a different port on your computer. Restart your computer after driver installation.
- MIDI Issues: Verify MIDI cable connections and ensure the US-4x4HR is selected as a MIDI device in your software.
For more detailed troubleshooting, refer to the comprehensive support resources available on the official Tascam weblloc.
6. Especificacions
| Característica | Detall |
|---|---|
| Número de model | US4X4HR |
| Pes de l'article | 1 lliures |
| Dimensions del producte | 13 x 5 x 3 polzades |
| Interfície del maquinari | USB |
| Tecnologia de connectivitat | USB |
| Nombre de canals | 4 (4-in/4-out) |
| Quantitat de canal de mesclador | 4 |
| Resolució d'àudio | Fins a 24 bits/192 kHz |
| Programari compatible | Windows, Mac, iOS, iPadOS |
| Dispositius compatibles | Desktop-PC, Notebook, Tablet |
| Nom del color | Negre |
7. Suport
7.1 Official Tascam Support
For the latest drivers, firmware updates, additional manuals, and frequently asked questions, please visit the official Tascam support weblloc:
7.2 Informació de la garantia
Warranty terms and conditions may vary by region and retailer. Please refer to the warranty card included with your product or consult your purchase documentation for specific details regarding your Tascam US-4x4HR.





