Audient Audio Interface iD4 MKII, Class A Console vs MOTU M6 6x4 USB-C Audio Interface with Studio-Quality Sound
Updated August 2026 — Audient Audio Interface iD4 MKII, Class A Console wins on portability, MOTU M6 6x4 USB-C Audio Interface with Studio-Quality Sound wins on latency and features.
The Audient iD4 MKII is a great budget option for home recording, while the MOTU M6 offers superior features and audio quality for professionals.
Why Audient Audio Interface iD4 MKII, Class A Console is better
Price
Audient iD4 MKII is significantly cheaper.
Portability
Audient iD4 MKII is lighter and more travel-friendly.
Ease of Use
Audient iD4 MKII offers a straightforward setup.
Why MOTU M6 6x4 USB-C Audio Interface with Studio-Quality Sound is better
Audio Quality
MOTU M6 has superior ESS Sabre32 DAC technology.
Latency
MOTU M6 offers ultra-low 2.5 ms round trip latency.
Features
MOTU M6 includes advanced metering and A/B monitor switch.
Overall score
Specifications
| Spec | Audient Audio Interface iD4 MKII, Class A Console | MOTU M6 6x4 USB-C Audio Interface with Studio-Quality Sound |
|---|---|---|
| Dynamic Range | Not specified | 120 dB |
| USB Type | USB-C | USB-C |
| Headphone Outputs | 2 | 2 |
| Weight | 740 g | Not specified |
| Latency | Not specified | 2.5 ms |
Dimension comparison
Overview of the Audient iD4 MKII and MOTU M6
The Audient iD4 MKII is priced at $214.90, making it about 52% cheaper than the MOTU M6, which retails for $449.95. This price difference reflects varying target markets and capabilities between these two audio interfaces.
The Audient iD4 MKII is designed for home recording enthusiasts, featuring a Class A console microphone preamp and high-speed USB-C connectivity. In contrast, the MOTU M6 targets professionals with its studio-quality sound and advanced features, such as an LCD metering display and low latency monitoring.
Audio Quality Comparison
The MOTU M6 boasts superior audio quality, leveraging ESS Sabre32 Ultra DAC Technology that provides an impressive 120 dB Dynamic Range. This technology is typically found in high-end interfaces, which justifies its higher price. The Audient iD4 MKII, while not as high-end, still delivers a harmonious overall sound due to its Class A microphone preamp derived from Audient's ASP8024 HE console.
For users prioritizing sound fidelity, the MOTU M6's ultra-clean preamp circuits, which produce a measured -129 dBu EIN on the mic inputs, offer distinct advantages, especially in professional settings.
Speed and Latency
The MOTU M6 excels in speed, offering class-leading ultra-low 2.5 ms Round Trip Latency at 96 kHz. This feature is particularly beneficial for live monitoring, allowing musicians to hear their inputs in real-time without noticeable delay.
On the other hand, the Audient iD4 MKII does not specify latency figures but focuses on ease of use with its USB-C connection. While the iD4 MKII is suitable for casual users, those prioritizing low latency will find the MOTU M6 significantly more advantageous.
Features and Functionality
The MOTU M6 leads in features, presenting a unique A/B monitor switch for easily comparing two sets of monitors, which is crucial for mixing and mastering. It also includes a full-color LCD for detailed level metering—a feature absent in the Audient iD4 MKII, which focuses on a more straightforward user experience.
In contrast, the iD4 MKII offers functional features such as a monitor mix and monitor panning function, alongside dual headphone outputs. However, it lacks the more advanced capabilities that professionals may require, making the M6 the more versatile option.
Portability and Build Quality
The Audient iD4 MKII is designed with portability in mind, featuring an all-metal desktop housing that ensures durability while on the go. Weighing in at 740 grams, it is relatively lightweight, making it easy to transport.
The MOTU M6, while also manageable, is less focused on portability due to its larger size and additional features. Users looking for a robust, travel-friendly option might prefer the Audient iD4 MKII for its simpler, more compact design.
Compatibility
Both interfaces are compatible with Mac, PC, and iOS devices, ensuring broad usability across different systems. The Audient iD4 MKII's high-speed USB-C connection further enhances its compatibility and ease of use, appealing to users who value a hassle-free setup.
While the MOTU M6 also utilizes USB-C, its advanced features may require more technical understanding, potentially making it slightly less user-friendly for beginners compared to the iD4 MKII.
Target Audience
The Audient iD4 MKII targets home recording enthusiasts and beginners who seek quality sound without needing an extensive feature set. Its price point of $214.90 makes it an accessible entry point for those new to audio recording.
In contrast, the MOTU M6, with its professional-grade features and higher price of $449.95, is aimed at serious musicians and audio engineers who require the best sound quality and functionality for professional work. This distinction is crucial for potential buyers when considering which interface meets their needs.
Which should you buy?
Choosing between the Audient iD4 MKII and the MOTU M6 largely depends on your specific needs and budget. If you are looking for an affordable, portable interface for home recording, the Audient iD4 MKII at $214.90 is a solid choice, offering great sound quality and ease of use. However, if you require advanced features, superior audio quality, and the capability for professional-level recording, the MOTU M6 is worth the investment at $449.95. Ultimately, your decision should align with your recording aspirations and whether you need a straightforward solution or a feature-rich interface.

