Audient iD4 MKII USB-C Audio Interface Review

The Audient iD4 MKII features a well-rounded selection of specifications that cater to various audio recording needs. Show More

The Channels of I/O indicates the input and output capabilities of the interface. With 2 inputs and 2 outputs at a maximum sampling rate of 96 kHz, users can effectively manage multiple audio sources while ensuring high-quality sound reproduction. This flexibility is essential for musicians and podcasters who may need to record instruments and vocals simultaneously.

The Maximum Sampling Rate of 96 kHz and bit depth of 24-Bit signifies the audio fidelity that the interface can achieve. A higher sampling rate allows for more detailed audio capture, which is particularly beneficial for nuanced performances. The 24-bit depth enhances dynamic range, resulting in clearer, more professional-sounding recordings.

The Number of Microphone Inputs indicates that the iD4 MKII is equipped with one preamp. This is ideal for solo artists or small recording setups, allowing for direct connection to a microphone without the need for additional equipment. The quality of the preamp can significantly influence the warmth and clarity of the recorded sound.

The Input Level Adjustment feature, represented by the 2x knob, provides users with the ability to control the gain for their inputs easily. This adjustment is crucial for preventing distortion and ensuring that the audio levels are optimized for recording, enabling users to achieve the best sound quality possible.

Lastly, the Expansion Slots section indicates that the iD4 MKII does not have any expansion capabilities. While this might limit future upgrades, it simplifies the design and keeps the interface compact and user-friendly for those who need a straightforward audio solution without the complexity of additional modules.

The Pad feature indicates whether the audio interface has a pad switch. A pad is used to reduce the input signal's level, which can prevent distortion when recording very loud sources. In the case of the Audient iD4 MKII, the absence of a pad means that it may not be suitable for extremely high sound pressure levels, but it is capable of capturing a wide range of audio sources effectively without additional attenuation.Show More

The Gain/Trim Range provides insight into how much control you have over the input signal levels for different types of connections. For the Mic/Hi-Z inputs, a gain range of 58 dB allows for versatility in recording various microphones and instruments, ensuring that even low-output sources can be amplified adequately. On the Hi-Z inputs, a gain of 40 dB is suitable for high-impedance sources like electric guitars or basses, providing enough boost to capture the full dynamic range.

The High-Pass Filter feature helps in reducing unwanted low frequencies that can muddy the sound. The iD4 MKII does not include a high-pass filter, which means that users may need to apply EQ during mixing if they want to eliminate low-end rumble or handling noise. This can be a consideration for users who frequently work with vocals or acoustic instruments.

Lastly, the Solo/Mute functionality allows users to control the output signal easily. The iD4 MKII features a mute option per master, meaning that users can silence the entire output quickly without affecting the input signals. This is especially useful during live sessions or when monitoring, allowing for seamless transitions without disrupting the workflow.

The Analog Audio I/O specifications of the Audient iD4 MKII include a variety of input and output options designed to accommodate different audio sources and monitoring setups. The device features a combo XLR-1/4" TRS balanced mic/line input, which allows users to connect either a microphone or line-level device, providing versatility for recording. Additionally, there is a dedicated 1/4" TRS unbalanced Hi-Z input on the front panel, ideal for instruments like electric guitars or basses that require high impedance. For audio output, the interface includes two 1/4" TRS balanced monitor outputs for connecting studio monitors, as well as a 1/4" TRS unbalanced headphone output and a 1/8" TRS unbalanced headphone output, catering to different monitoring preferences.Show More

The Phantom Power feature delivers 48 V ± 4 V, which is essential for powering condenser microphones that require external power for operation. The selectable on/off functionality allows users to activate or deactivate this power as needed, providing greater control over their recording setup. With a current capacity of 10 mA per channel, the interface can support multiple condenser microphones simultaneously.

In terms of Digital Audio I/O, the Audient iD4 MKII does not offer digital connectivity options, focusing instead on high-quality analog inputs and outputs. For Host Connection, the device utilizes a single USB-C port, compatible with USB 3.0 / 3.1/3.2 Gen 1 protocols, ensuring fast data transfer rates and reliable performance when connected to computers. The absence of USB (Non-Host), Sync I/O, Network I/O, and MIDI I/O indicates that this interface is designed primarily for straightforward audio recording and playback without the need for additional synchronization or networked devices. This simplicity can be advantageous for users seeking an efficient, no-frills recording solution.

The specifications of the Audient iD4 MKII provide essential insights into its audio performance and capabilities. Show More

Starting with Frequency Response, this refers to the range of frequencies the device can accurately reproduce. The specified range of 10 Hz to 40 kHz indicates that the iD4 MKII can handle low bass frequencies up to high treble frequencies, ensuring a clear and detailed sound reproduction across the entire audio spectrum. The variations in dB indicate how closely the output matches the input across this range, which is crucial for maintaining the integrity of the audio signal.

Maximum Input Level specifies the highest level of audio signal that the device can accept before distortion occurs. With different input types (mic, line, and Hi-Z), the iD4 MKII shows its versatility in accommodating various sources, such as microphones and instruments, without compromising sound quality. This capability is particularly important in professional audio settings where signal integrity is paramount.

The Maximum Output Level for headphone outputs indicates the highest voltage that can be delivered to headphones without distortion, which affects how loud the audio can be played back. High output levels can drive a wide range of headphone impedances effectively, making the interface suitable for various monitoring scenarios.

Headphone Output Power provides insight into the power the device can deliver to headphones of different impedances. This is crucial for ensuring that the headphones are driven adequately without distortion, allowing for accurate monitoring in a studio setting.

The Impedance ratings for mic and line inputs indicate compatibility with different types of audio equipment. A lower impedance in mic inputs can help in capturing more detail and sensitivity from microphones, while higher impedance in line inputs is suitable for various audio sources, preventing signal loss.

The Dynamic Range indicates the difference between the quietest and loudest sounds the device can handle without distortion. A higher dynamic range, as seen in the A/D and D/A converters, suggests that the iD4 MKII can accurately reproduce both subtle nuances and loud transients, which is essential for high-fidelity audio production.

Signal-to-Noise Ratio (SNR) indicates how much background noise is present relative to the audio signal. A higher SNR means clearer audio with less background noise, enhancing the overall listening experience.

The Total Harmonic Distortion + Noise (THD+N) figures reveal how much distortion is introduced to the audio signal by the device. Lower percentages indicate cleaner audio reproduction, which is critical in professional audio applications.

Equivalent Input Noise (EIN) measures the noise generated by the device itself, which can affect quiet recordings. A lower EIN value indicates better performance in capturing quiet sounds without interference.

Lastly, Common Mode Rejection Ratio (CMRR) measures the ability of the device to reject noise that can occur in balanced connections. A higher CMRR indicates better performance in noisy environments, making the iD4 MKII suitable for professional studio use.

These specifications collectively highlight the Audient iD4 MKII's capabilities, providing a robust and reliable solution for audio recording and playback.

The Audient iD4 MKII USB-C Audio Interface features several important specifications that enhance its functionality and performance in audio recording and production.Show More

The dBFS Reference Level of +12 dBu = 0 dBFS indicates the maximum level of the audio signal before digital distortion occurs. This reference level is crucial for maintaining audio quality and preventing clipping during recording. A higher reference level allows for a greater dynamic range, meaning users can capture louder sounds without distortion while still retaining detail in quieter passages.

The Sample Rates supported by the iD4 MKII (44.1 / 48 / 88.2 / 96 kHz) determine the number of samples taken per second when recording audio. Higher sample rates can capture more detail and produce higher fidelity recordings, which is especially beneficial for professional audio work. Users can choose the appropriate sample rate based on their needs, with 96 kHz offering the best quality for critical listening or mixing.

The specification Sample Rate Conversion indicates that this interface does not perform sample rate conversion. This means that recordings will be made at the sample rate selected by the user, without automatic adjustment to match the settings of other audio devices. While this can simplify the process for some, it requires users to manage sample rates manually to ensure compatibility with other equipment.

In terms of Bit Depths, the iD4 MKII operates at 24-Bit, allowing for a higher resolution of audio data compared to 16-Bit. This higher bit depth results in more accurate representation of sound, providing greater dynamic range and detail, which is particularly useful for professional recording and mixing environments.

The Latency values of 0.65 ms at 44.1 kHz and 0.31 ms at 96 kHz reflect the delay between input and output during audio processing. Low latency is crucial for real-time monitoring and performance, ensuring that musicians and vocalists can hear their recordings with minimal delay. The specific latency experienced will also depend on the buffer size set by the user, which can influence performance based on the demands of the session.

Finally, the Sync Sources specification being set to Internal means that the iD4 MKII uses its internal clock for synchronizing audio processing. This is standard for most audio interfaces and ensures stable and reliable performance during recording and playback, making it a solid choice for various audio projects.

The Audient iD4 MKII USB-C Audio Interface does not include a memory card slot. This feature is particularly relevant for users who might expect to store audio files or recordings directly on a memory card for easy access and transfer. Instead, the iD4 MKII focuses on providing high-quality audio processing and connectivity through USB-C, which allows for direct connection to computers and other devices.Show More

The absence of a memory card slot suggests that users will need to rely on their connected devices for storage and processing of audio. This design choice emphasizes the device’s streamlined functionality and its role as a professional audio interface rather than a standalone recording device. As a result, users can expect to achieve high-quality recordings and playback through their computer systems, utilizing the iD4 MKII's robust audio capabilities without the need for additional storage solutions.

The Audient iD4 MKII USB-C Audio Interface is designed to be compatible with various operating systems, which enhances its versatility for different users. The specification indicates support for macOS 10.11.6 or later, Windows 7 or later, and iPadOS, ensuring that it can be used with a wide range of devices. This compatibility allows musicians, podcasters, and audio engineers to seamlessly integrate the interface into their existing setups.Show More

The Processor Requirement specifies the minimum processor needed for optimal performance. For Mac users, it requires an Intel processor or the newer Apple M1, while PC users need at least a 1.6 GHz Intel Core 2 processor. This ensures that the device can handle audio processing without latency issues, providing a smooth recording and playback experience.

The RAM Requirements of 1 GB is essential for running audio software effectively. Sufficient RAM allows for better multitasking and handling of larger audio files, which is particularly important during complex recording sessions or when using multiple plugins.

In terms of Mobile Device Compatibility, the iD4 MKII can connect to iPads and iPhones, making it a flexible option for mobile recording. This feature is particularly useful for musicians on the go who want to capture high-quality audio without being tethered to a computer.

The Required Hardware highlights the necessity of having an available USB-C port and includes a USB cable in the package. This ensures users have everything they need to set up the interface right out of the box, promoting ease of use.

Lastly, an Internet Connection is required for initial registration and software/driver downloads. This ensures that users have the latest updates and necessary drivers installed, which can improve performance and compatibility with the latest operating systems and audio software.

The Audient iD4 MKII USB-C Audio Interface operates using USB bus power, which means it draws energy directly from the computer to which it is connected. This feature is particularly advantageous for users who prioritize portability and convenience, as it eliminates the need for an external power supply or additional power adapters. Show More

By relying on USB bus power, the interface can be easily used in a variety of settings, including home studios, mobile recording setups, or even on the go with a laptop. This design choice not only simplifies the setup process but also enhances the overall user experience, allowing creators to focus on their audio production without the hassle of managing extra power sources.

This power requirement is ideal for musicians, podcasters, and content creators who need a reliable and straightforward solution for their audio needs, ensuring they can capture high-quality sound wherever they are.

The Anti-Theft Features of the Audient iD4 MKII include a Kensington Security Slot, which allows users to secure the device using a compatible lock. This feature is particularly useful for those who may use the audio interface in public spaces or shared environments, ensuring that it remains protected against theft.Show More

The Dimensions of the iD4 MKII are specified as 5.2 x 4.7 x 2.4 inches (or 13.3 x 12 x 6 cm, including controls and protrusions). These compact dimensions make the device portable and easy to fit into various setups, whether in a home studio or on the go. The size is important for users who may need to transport the interface frequently, as it can conveniently fit in a backpack or small carrying case.

In terms of Weight, the iD4 MKII weighs 2.2 lb (1.0 kg). This lightweight design contributes to its portability, making it an excellent choice for musicians, podcasters, and audio engineers who require a reliable interface that they can easily carry around. The weight is an important consideration for users who prioritize mobility without sacrificing performance.

The Package Weight of 1.92 lb indicates the total weight of the Audient iD4 MKII when packaged for shipping. This weight is essential for potential buyers to consider, especially if they are looking to understand shipping costs or how portable the device may be. A lighter weight often means easier handling and transport, making the iD4 MKII a convenient option for musicians and audio engineers who work in various locations.Show More

The Box Dimensions (LxWxH) of 7.5 x 6 x 3.5 inches provide the specific size of the packaging. These dimensions are crucial for users who need to ensure that they have adequate space for storage or transport. Compact dimensions suggest that the interface is designed to be portable, allowing users to easily fit it into a backpack or carry-on, which is particularly beneficial for those who travel frequently for recording sessions or live performances. Overall, both the weight and box dimensions contribute to the usability and convenience of the Audient iD4 MKII in different settings.