1. Introduction
The Audient iD4 MKII is a compact 2-in/2-out USB-C audio interface designed for professional audio recording and monitoring. It features a Class-A console microphone preamplifier, high-quality converters, and is compatible with Mac, PC, and iOS devices. This manual provides essential information for setting up, operating, and maintaining your iD4 MKII.
Image 1.1: Front and top view of the Audient iD4 MKII audio interface, showcasing its compact design and primary controls.
2. Setup
2.1 System Requirements
- Operating System: Mac, PC, iOS
- Connector Type: USB 3.0, USB Type C
- Compatible Devices: Personal Computer
2.2 Driver Installation
Before connecting your iD4 MKII, it is recommended to download and install the latest drivers from the official Audient website. Proper driver installation ensures optimal performance and compatibility with your operating system.
2.3 Connecting the iD4 MKII
- Connect the iD4 MKII to your computer using the supplied USB-C cable. The device is bus-powered, eliminating the need for an external power adapter.
- Connect your microphone to the XLR/TRS combo input on the rear panel. If using a condenser microphone, activate 48V phantom power via the switch on the rear.
- Connect instruments (e.g., guitar, bass) to the JFET instrument input on the front panel.
- Connect headphones to either of the two headphone outputs on the front panel.
- Connect your studio monitors to the main outputs on the rear panel.
Image 2.1: Rear view of the Audient iD4 MKII, highlighting the USB-C port, 48V phantom power switch, and main outputs.
3. Operating Instructions
3.1 Audient Console Mic Preamp
The iD4 MKII features a Class-A console microphone preamplifier, utilizing the same discrete circuit design found in Audient's ASP8024-HE recording console. This preamp is engineered to deliver ultra-low noise and low distortion, providing a classic analog warmth to your recordings. Adjust the 'GAIN' knob for the microphone input to set the input level.
3.2 Class-Leading Converters
The iD4 MKII's converters are designed for accuracy, ensuring that every nuance and detail of your audio is reproduced faithfully. This allows for precise monitoring and mixing decisions.
3.3 JFET Instrument Input
The harmonically rich JFET Instrument Input is designed to emulate the input stage of a classic valve amplifier, making it suitable for direct connection of guitars and basses.
Image 3.1: A user playing an electric guitar connected to the iD4 MKII, demonstrating the JFET instrument input.
3.4 Monitor Mix and Panning Function
The iD4 MKII includes a Monitor Mix function, allowing you to blend the input signal with the playback from your computer (DAW). This feature helps in achieving zero-latency monitoring during recording. The monitor panning function provides control over the stereo image of your monitor mix.
3.5 Headphone Outputs
The device features two headphone outputs, allowing for simultaneous monitoring by two users or with different headphone types. The integrated headphone amplifier provides ample power and an extended frequency response.
3.6 ScrollControl
The large main volume knob on the iD4 MKII can also function as a 'ScrollControl'. This feature allows you to use the knob to control various parameters within your music production software, such as volume, pan, and plugin settings, providing an intuitive workflow.
Image 3.2: A woman using the Audient iD4 MKII for recording, demonstrating its use in a studio setup.
4. Maintenance
The iD4 MKII features an all-metal desktop housing designed for stability and durability. To ensure longevity and optimal performance:
- Keep the device clean by wiping it with a soft, dry cloth. Avoid abrasive cleaners or solvents.
- Protect the device from extreme temperatures, humidity, and direct sunlight.
- Avoid placing heavy objects on the unit or exposing it to excessive vibrations.
- Ensure proper ventilation around the unit to prevent overheating.
5. Troubleshooting
5.1 Driver and Software Issues
If you experience unexpected audio behavior, such as sudden volume changes, distortion, or static, it may be related to the associated iD app or driver conflicts. Ensure you have the latest drivers installed from the Audient website. If issues persist, try operating the device without the iD app running, as some users have reported improved stability in this configuration.
5.2 Gain Staging
The gain knob for the microphone input can be highly sensitive, with a significant boost occurring past the 3 o'clock position. While the gain is generally clean, monitor your input levels carefully to prevent clipping. The LED indicators provide visual feedback for input levels.
5.3 Latency
If you experience noticeable latency during recording or monitoring, check your DAW's buffer size settings. Lowering the buffer size can reduce latency, but may require more processing power from your computer. Ensure your system meets the recommended specifications for your DAW and the iD4 MKII.
5.4 Volume Reset
The iD4 MKII's main volume control does not retain its setting after the computer is powered off or the device is disconnected. Upon reconnection or power-up, the volume will reset to a default level. Adjust the volume to your desired level each time you begin a session.
6. Specifications
| Feature | Detail |
|---|---|
| Item Weight | 1.63 pounds (0.74 kg) |
| Product Dimensions | 4.72 x 5.2 x 1.57 inches (120 x 132 x 40 mm) |
| Model Number | iD4MKII |
| Compatible Devices | Personal Computer |
| Connector Type | USB 3.0, USB Type C |
| Hardware Interface | Headphone |
| Supported Software | Steinberg Cubase LE + Cubasis LE 2, Steinberg Retrologue 2 Synth, TwoNotes Wall of Sound, Loopmasters Sample Pack |
| Material Type | Plastic (Housing is metal) |
| Operating System | Mac, iOS |
| Connectivity Technology | USB |
| Number of Channels | 2 |
7. Warranty and Support
Specific warranty details are not provided in this manual. For information regarding warranty coverage, terms, and conditions, please refer to the documentation included with your product packaging or visit the official Audient website. For technical support, driver downloads, and additional resources, please visit the Audient support page online.
You can find more information and support resources on the Audient Brand Store.
