The RODE AI-1 and the Audient iD4 MKII are both popular USB-C audio interfaces designed for home studios, podcasting, and portable recording setups, but they cater to slightly different needs and preferences.
The RODE AI-1 features a simple yet robust design aimed at users who prioritize ease of use and quality. It offers a single XLR-1/4” combo input, allowing for the connection of microphones, instruments, or line-level sources. The unit is equipped with a high-quality preamp and 48V phantom power, ensuring clear and detailed recordings. The AI-1 also includes a high-quality headphone amplifier and balanced 1/4” outputs for connecting studio monitors. Its plug-and-play functionality makes it an excellent choice for beginners and those who require a straightforward setup without sacrificing audio fidelity.
On the other hand, the Audient iD4 MKII is a more feature-rich interface, appealing to users who demand greater versatility and premium audio performance. It offers two inputs: one Class-A Audient Console mic preamp and one JFET instrument input, enabling simultaneous recording of vocals and instruments. The iD4 MKII also includes a unique ScrollControl feature, which allows the main volume knob to be used for DAW control and other software parameters. Additionally, it boasts a comprehensive monitoring section with a dual headphone output, making it ideal for collaborative work. The Audient iD4 MKII is constructed with high-quality components and offers a dynamic range of 120dB, ensuring pristine sound quality.
In summary, the RODE AI-1 is perfect for users seeking a no-fuss, high-quality audio interface with essential features, while the Audient iD4 MKII caters to those who require more advanced functionality and superior audio performance. Both interfaces are excellent choices, but the best one for you will depend on your specific recording needs and preferences.
User Rating Based on Analysis of Reviews |
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Pros: |
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High-quality preamps and audio conversion.
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Rugged and compact design.
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Easy setup and operation with plug-and-play functionality.
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Compatible with both Mac and Windows.
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Includes balanced outputs for studio monitors.
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High-quality preamps and AD/DA converters.
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Compact and portable design.
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USB-C connectivity for faster data transfer and power.
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Direct monitoring with zero-latency.
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Robust build quality.
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Cons: |
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Limited to a single input channel, which may not be suitable for multi-input recording needs.
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No midi input/output.
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Pricier compared to some other single-input interfaces.
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Lacks onboard controls for gain and monitoring.
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Limited to two input channels.
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No MIDI input/output.
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Requires external power when used with some iOS devices.
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Higher price point compared to some competitors.
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Key Specs |
Channels of I/O |
1 Input / 2 Output |
Analog: 2 Inputs / 2 Outputs at 96 kHz |
Maximum Sampling Rate |
96 kHz / 24-Bit |
96 kHz / 24-Bit |
Number of Microphone Inputs |
1 |
1 Preamp |
Analog Audio I/O |
1x Combo XLR-1/4" TRS Mic/Line Input 2x 1/4" TRS Balanced Line Output 1x 1/4" TRS Headphone Output |
1x Combo XLR-1/4" TRS Balanced Mic/Line Input 1x 1/4" TRS Unbalanced Hi-Z Input (Front Panel) 2x 1/4" TRS Balanced Monitor Output 1x 1/4" TRS Unbalanced Headphone Output (Front Panel) 1x 1/8" / 3.5 mm TRS Unbalanced Headphone Output (Front Panel) |
Host Connection |
USB-C |
1x USB-C |
OS Compatibility |
macOS 10.10 or Later Windows 7 or Later |
macOS 10.11.6 or Later macOS 11.1 or Later Windows 7 or Later 6 or Later iPadOS |
Power Requirements |
USB Bus Power |
USB Bus Power |
The RODE AI-1 USB-C Audio Interface and the Audient iD4 MKII USB-C Audio Interface both provide robust features for audio recording, but they have several differences in terms of their specifications.
The RODE AI-1 has a single input and two outputs, with a maximum sampling rate of 96 kHz at 24-bit resolution. It offers one combo XLR-1/4" TRS mic/line input, two 1/4" TRS balanced line outputs, and one 1/4" TRS headphone output. It connects via USB-C and is compatible with macOS 10.10 or later and Windows 7 or later. The device is powered through USB bus power, which simplifies setup and portability.
On the other hand, the Audient iD4 MKII provides more versatility with its two analog inputs and two outputs at the same maximum sampling rate of 96 kHz at 24-bit resolution. It includes one combo XLR-1/4" TRS balanced mic/line input, an additional 1/4" TRS unbalanced Hi-Z input on the front panel, two 1/4" TRS balanced monitor outputs, and two headphone outputs (one 1/4" TRS unbalanced and one 1/8" / 3.5 mm TRS unbalanced, both on the front panel). It also connects via USB-C and is compatible with macOS 10.11.6 or later, macOS 11.1 or later, Windows 7 or later, and iPadOS, offering more flexibility in terms of device compatibility. Like the RODE AI-1, it is powered through USB bus power.
In summary, while both interfaces offer high-quality audio resolution and USB-C connectivity, the Audient iD4 MKII stands out with its additional input options and more extensive compatibility with various operating systems and devices, making it a more versatile choice for users needing multiple input types and outputs. The RODE AI-1, with its simpler interface and streamlined design, may appeal to users looking for a straightforward, easy-to-use option.
General |
Channels of I/O |
1 Input / 2 Output |
Analog: 2 Inputs / 2 Outputs at 96 kHz |
Maximum Sampling Rate |
96 kHz / 24-Bit |
96 kHz / 24-Bit |
Number of Microphone Inputs |
1 |
1 Preamp |
Input Level Adjustment |
2x Knob |
2x Knob |
Expansion Slots |
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When comparing the RODE AI-1 USB-C Audio Interface and the Audient iD4 MKII USB-C Audio Interface, several key features stand out, highlighting the strengths and differences of each product.
The RODE AI-1 USB-C Audio Interface offers 1 input and 2 outputs, making it a straightforward choice for solo recording needs. It features a maximum sampling rate of 96 kHz at 24-bit, ensuring high-quality audio recording and playback. The RODE AI-1 has 1 microphone input and offers input level adjustment via 2 knobs. However, it lacks built-in DSP capabilities and does not support expansion slots, which may limit its flexibility for more complex recording setups.
On the other hand, the Audient iD4 MKII USB-C Audio Interface provides slightly more versatility with 2 analog inputs and 2 outputs, also at a maximum sampling rate of 96 kHz at 24-bit. This interface includes 1 preamp for microphone input and similarly offers input level adjustment through 2 knobs. Like the RODE AI-1, the Audient iD4 MKII does not have expansion slots. However, the additional analog input may offer more flexibility for users needing to connect multiple instruments or audio sources simultaneously.
Both interfaces are designed for high-quality audio performance and are equipped with USB-C connectivity, ensuring compatibility with modern computer systems. The choice between the two may come down to the specific input/output requirements and whether the user needs the additional analog input provided by the Audient iD4 MKII.
Signal Processing |
Gain/Trim Range |
Inputs: 0 to 45 dB |
Mic/Hi-Z Inputs: 58 dB Hi-Z Inputs: 40 dB |
High-Pass Filter |
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Solo/Mute |
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Mute per Master |
The RODE AI-1 USB-C Audio Interface offers a gain/trim range of 0 to 45 dB for its inputs. This range is suitable for various recording scenarios, providing flexibility for different microphone sensitivities and instrument levels. However, it lacks a high-pass filter feature, which could be a downside for users looking for basic frequency control directly on the interface. Additionally, the RODE AI-1 does not include solo or mute functionalities, which might be a limitation for users needing more nuanced control during recording and monitoring.
In contrast, the Audient iD4 MKII USB-C Audio Interface delivers a gain/trim range of 58 dB for mic/Hi-Z inputs and 40 dB for Hi-Z inputs, offering a broader range for different recording needs. Similar to the RODE AI-1, the Audient iD4 MKII does not feature a high-pass filter. However, it does include a mute function per master, providing users with a bit more control over their outputs. This feature can be particularly useful during live monitoring and recording sessions, allowing for quick muting when needed.
Overall, while both interfaces share some similarities, such as the absence of a high-pass filter, the Audient iD4 MKII provides a wider gain range and additional mute functionality, which might make it more appealing to users seeking more control and versatility in their audio interface.
Connectivity |
Analog Audio I/O |
1x Combo XLR-1/4" TRS Mic/Line Input 2x 1/4" TRS Balanced Line Output 1x 1/4" TRS Headphone Output |
1x Combo XLR-1/4" TRS Balanced Mic/Line Input 1x 1/4" TRS Unbalanced Hi-Z Input (Front Panel) 2x 1/4" TRS Balanced Monitor Output 1x 1/4" TRS Unbalanced Headphone Output (Front Panel) 1x 1/8" / 3.5 mm TRS Unbalanced Headphone Output (Front Panel) |
Phantom Power |
48 V |
48 V ± 4 V, Selectable On/Off |
Digital Audio I/O |
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Host Connection |
USB-C |
1x USB-C |
Host Connection Protocol |
Not Specified by Manufacturer |
USB 3.0 / 3.1/3.2 Gen 1 |
USB (Non-Host) |
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Sync I/O |
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Network I/O |
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MIDI I/O |
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The RODE AI-1 USB-C Audio Interface and the Audient iD4 MKII USB-C Audio Interface both serve as compact, high-quality solutions for professional audio recording and editing, yet they differ in their features and capabilities.
The RODE AI-1 is equipped with a single combo XLR-1/4" TRS mic/line input which allows for versatile connectivity options for microphones and line-level instruments. It offers two 1/4" TRS balanced line outputs for seamless integration with studio monitors and a 1/4" TRS headphone output for monitoring. It supports 48 V phantom power, making it compatible with condenser microphones. However, it lacks digital audio I/O, MIDI I/O, and network I/O capabilities. The AI-1 connects to the host via USB-C, but the specific host connection protocol is not specified by the manufacturer.
On the other hand, the Audient iD4 MKII provides a broader range of connectivity options. It features a single combo XLR-1/4" TRS balanced mic/line input and an additional 1/4" TRS unbalanced Hi-Z input on the front panel, which is ideal for direct connection of electric guitars or other high-impedance instruments. For output, it offers two 1/4" TRS balanced monitor outputs, a 1/4" TRS unbalanced headphone output, and a 1/8" (3.5 mm) TRS unbalanced headphone output, both located on the front panel. This model also supports 48 V phantom power with a current of 10 mA per channel, selectable on or off. Similar to the RODE AI-1, it lacks digital audio I/O, MIDI I/O, and network I/O. The Audient iD4 MKII connects to the host through USB-C using the USB 3.0/3.1/3.2 Gen 1 protocol.
In summary, while both interfaces offer essential features like phantom power and USB-C connectivity, the Audient iD4 MKII stands out with its additional Hi-Z input and dual headphone outputs, providing more flexibility for different recording and monitoring setups. The RODE AI-1, however, remains a straightforward and effective choice for basic recording needs with its streamlined set of inputs and outputs.
Performance |
Frequency Response |
20 Hz to 20 kHz ±1 dB |
A/D Converters: 10 Hz to 40 kHz ±0.5 dB D/A Converters: 10 Hz to 40 kHz ±0.1 dB Headphone Outputs: 10 Hz to 40 kHz ±0.1 dB Mic, Line Inputs: 10 Hz to 40 kHz ±0.5 dB (Min Gain) Hi-Z Inputs: 10 Hz to 20 kHz ±0.5 dB (Min Gain) |
Maximum Output Level |
Monitor Outputs: -6 dBu |
Headphone Outputs: +5.46 Vrms (600-Ohm Load) |
Headphone Output Power |
24 mW into 32 Ohms 245 mW into 300 Ohms |
223 mW into 30 Ohms (Max) 280 mW into 62 Ohms (Max) 100 mW into 600 Ohms (Max) |
Impedance |
Hi-Z Inputs: 0.9 Megohm Mic Inputs: 1.3 Kilohms |
Mic Inputs: 2.8 Kilohms (Balanced) Line Inputs: > 8 Kilohms (Balanced) |
Dynamic Range |
104 dBu |
A/D Converters: 120 dB (A-Weighted) D/A Converters: 125.5 dB (A-Weighted) Headphone Outputs: 125.5 dB (A-Weighted) |
EIN |
-128 dBA |
Mic/Line Inputs: -129 dB A-Weighted |
The RODE AI-1 USB-C Audio Interface and the Audient iD4 MKII USB-C Audio Interface both offer robust features for audio recording and production, but they differ significantly in several key areas.
Starting with frequency response, the RODE AI-1 offers a range of 20 Hz to 20 kHz ±1 dB, while the Audient iD4 MKII provides a broader spectrum. The iD4 MKII's A/D and D/A converters, headphone outputs, and mic/line inputs cover 10 Hz to 40 kHz, though with varying degrees of precision (±0.5 dB to ±0.1 dB). This broader frequency response of the Audient iD4 MKII points to potentially superior audio fidelity.
In terms of maximum output level, the RODE AI-1's monitor outputs are capped at -6 dBu, compared to the Audient iD4 MKII's headphone outputs which can reach +5.46 Vrms into a 600-Ohm load. This difference indicates that the Audient iD4 MKII may be more capable of driving headphones and monitors to higher volumes without distortion.
Regarding headphone output power, the RODE AI-1 can deliver 24 mW into 32 Ohms and 245 mW into 300 Ohms. On the other hand, the Audient iD4 MKII provides significantly higher output power, with 223 mW into 30 Ohms, 280 mW into 62 Ohms, and 100 mW into 600 Ohms. This makes the Audient iD4 MKII a more powerful option for users requiring strong headphone output.
The impedance specifications also reveal differences. The RODE AI-1 lists its Hi-Z input impedance at 0.9 Megohm and mic inputs at 1.3 Kilohms, whereas the Audient iD4 MKII offers higher mic input impedance at 2.8 Kilohms (balanced) and line inputs at >8 Kilohms (balanced). The higher impedance values of the Audient iD4 MKII could translate to better compatibility with a variety of microphones and instruments.
Dynamic range is another area where the Audient iD4 MKII excels, offering a dynamic range of 120 dB (A-Weighted) for A/D converters and 125.5 dB (A-Weighted) for D/A converters, and headphone outputs. In contrast, the RODE AI-1 has a dynamic range of 104 dBu. The wider dynamic range in the Audient iD4 MKII suggests a higher capacity for handling louder sounds and more nuanced audio detail.
Looking at the Equivalent Input Noise (EIN), the RODE AI-1 has an EIN of -128 dBA, whereas the Audient iD4 MKII boasts a slightly better EIN at -129 dB A-Weighted for mic/line inputs. Lower EIN values indicate lower noise levels, which is crucial for high-quality audio recordings.
Lastly, the Audient iD4 MKII provides additional specifications such as Signal-to-Noise Ratio (SNR) and Total Harmonic Distortion plus Noise (THD+N), where it demonstrates superior performance with lower THD+N values and higher SNR, contributing to cleaner and more accurate sound reproduction.
In summary, while both interfaces are capable, the Audient iD4 MKII USB-C Audio Interface stands out with its broader frequency response, higher output levels, greater headphone output power, higher impedance values, wider dynamic range, and lower noise levels, making it a more versatile and high-performance option compared to the RODE AI-1 USB-C Audio Interface.
Digital Audio |
Sample Rates |
44.1 / 48 / 88.2 / 96 kHz |
44.1 / 48 / 88.2 / 96 kHz |
Sample Rate Conversion |
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Bit Depths |
24-Bit |
24-Bit |
Latency |
Zero-Latency Direct Monitoring |
0.65 ms at 44.1 kHz (Dependent on Buffer Size, Input to Output) 0.31 ms at 96 kHz (Dependent on Buffer Size, Input to Output) |
The RODE AI-1 USB-C Audio Interface and the Audient iD4 MKII USB-C Audio Interface are both capable audio interfaces, each with its own unique set of features.
The RODE AI-1 USB-C Audio Interface supports sample rates of 44.1, 48, 88.2, and 96 kHz, but it does not include sample rate conversion. It offers a bit depth of 24-bit and features zero-latency direct monitoring. The clocking for the AI-1 is internal, which helps in maintaining accurate timing for audio signals.
In comparison, the Audient iD4 MKII USB-C Audio Interface also supports sample rates of 44.1, 48, 88.2, and 96 kHz with no sample rate conversion. It provides the same 24-bit bit depth as the RODE AI-1. However, the iD4 MKII has a specified latency of 0.65 ms at 44.1 kHz and 0.31 ms at 96 kHz, which is dependent on buffer size and input to output configuration. The dBFS reference level for the Audient iD4 MKII is +12 dBu = 0 dBFS, and it uses internal sync sources for clocking.
In summary, both the RODE AI-1 and Audient iD4 MKII offer high-quality 24-bit audio with sample rates up to 96 kHz and lack sample rate conversion. The RODE AI-1 boasts zero-latency direct monitoring, while the Audient iD4 MKII provides very low latency figures dependent on buffer size and includes a dBFS reference level of +12 dBu = 0 dBFS. Both interfaces rely on internal clocking to ensure accurate audio timing.
Compatibility |
OS Compatibility |
macOS 10.10 or Later Windows 7 or Later |
macOS 10.11.6 or Later macOS 11.1 or Later Windows 7 or Later 6 or Later iPadOS |
The RODE AI-1 USB-C Audio Interface and the Audient iD4 MKII USB-C Audio Interface both offer robust OS compatibility, but there are some differences worth noting.
The RODE AI-1 is compatible with macOS 10.10 or later and Windows 7 or later, making it flexible for a wide range of operating systems. The Audient iD4 MKII, on the other hand, supports macOS 10.11.6 or later, macOS 11.1 or later, and Windows 7 or later. In addition, the Audient iD4 MKII extends its compatibility to iPadOS, which is not mentioned for the RODE AI-1.
When it comes to processor requirements, the Audient iD4 MKII specifies that it supports both Intel and Apple M1 processors for Mac, and requires a 1.6 GHz Intel Core 2 processor for PC. The RODE AI-1 does not provide detailed processor requirements in its specifications.
In terms of RAM, the Audient iD4 MKII requires a minimum of 1 GB of RAM for operation, while the RODE AI-1 does not specify any RAM requirements.
The Audient iD4 MKII also offers mobile device compatibility, supporting both iPads and iPhones, which makes it a versatile choice for users who may want to use their audio interface with multiple types of devices. This feature is not mentioned for the RODE AI-1.
For required hardware, the Audient iD4 MKII necessitates an available USB-C port and includes a USB cable. Additionally, it requires an internet connection for registration and software/driver downloads. These hardware requirements and internet connection needs are not specified for the RODE AI-1.
In summary, while both audio interfaces offer compatibility with macOS and Windows operating systems, the Audient iD4 MKII provides more detailed requirements and extends its compatibility to iPadOS and mobile devices, making it a more versatile choice for users who need flexibility across different platforms and devices.
Power |
Power Requirements |
USB Bus Power |
USB Bus Power |
The RODE AI-1 USB-C Audio Interface and the Audient iD4 MKII USB-C Audio Interface share the same power requirement specification, which is USB Bus Power. This means that both devices are powered directly through their USB-C connections without the need for an external power supply.
The RODE AI-1 is designed as a straightforward and user-friendly audio interface, making it ideal for beginners or those looking for a simple setup. It features a single XLR-1/4" combo input, allowing for both microphone and instrument connectivity. Its compact and durable build is accompanied by a high-quality preamp, ensuring clear and clean audio recordings. The AI-1 also includes direct monitoring capabilities with zero latency, providing a reliable solution for real-time audio tracking.
On the other hand, the Audient iD4 MKII aims at delivering professional-grade audio quality with a slightly more advanced feature set. It includes two inputs: one Class-A Audient Console mic preamp and one discrete JFET instrument input, catering to a wider range of recording requirements. Additionally, the iD4 MKII offers higher-grade converters, promising superior audio fidelity with greater dynamic range and lower noise. The interface also features a ScrollControl function, which transforms the volume knob into a virtual scroll wheel for controlling various software parameters, adding a layer of versatility to its use.
In summary, while both the RODE AI-1 and the Audient iD4 MKII are powered via USB Bus Power, they cater to slightly different user needs. The RODE AI-1 focuses on simplicity and ease of use, making it suitable for beginners, whereas the Audient iD4 MKII provides enhanced audio quality and additional features that may appeal to more seasoned audio professionals.
Physical |
Dimensions |
4.9 x 3.9 x 1.5" / 124 x 100 x 38 mm |
5.2 x 4.7 x 2.4" / 13.3 x 12 x 6 cm (Including Controls and Protrusions) |
Weight |
19.8 oz / 561.3 g |
2.2 lb / 1.0 kg |
The RODE AI-1 USB-C Audio Interface and the Audient iD4 MKII USB-C Audio Interface differ in several key specifications, including dimensions, weight, and additional features.
The RODE AI-1 USB-C Audio Interface measures 4.9 x 3.9 x 1.5 inches (124 x 100 x 38 mm) and weighs 19.8 oz (561.3 g). This compact and lightweight design makes it easy to transport and ideal for users who need a portable solution for audio recording and production.
In contrast, the Audient iD4 MKII USB-C Audio Interface has dimensions of 5.2 x 4.7 x 2.4 inches (13.3 x 12 x 6 cm), which includes controls and protrusions. It weighs significantly more at 2.2 lb (1.0 kg), providing a more robust build that might appeal to users looking for a sturdier and potentially more durable interface.
Additionally, the Audient iD4 MKII USB-C Audio Interface includes an anti-theft feature with a Kensington Security Slot, adding an extra layer of security for those who may use the interface in public or shared spaces. This is a feature not present in the RODE AI-1 USB-C Audio Interface.
In summary, the RODE AI-1 offers a more compact and lightweight option, while the Audient iD4 MKII provides a more substantial build with added security features, catering to different user needs and preferences.
Packaging Info |
Package Weight |
1.155 lb |
1.92 lb |
Box Dimensions (LxWxH) |
7 x 5.1 x 2.55" |
7.5 x 6 x 3.5" |
The RODE AI-1 USB-C Audio Interface and the Audient iD4 MKII USB-C Audio Interface offer distinct features in terms of weight and dimensions, which could influence a user’s decision based on portability and space requirements.
The RODE AI-1 USB-C Audio Interface has a package weight of 1.155 lb, making it relatively lightweight and easy to transport. It comes in a compact box with dimensions of 7 x 5.1 x 2.55 inches, indicating a space-efficient design that is likely to fit into smaller setups or travel bags without much hassle.
On the other hand, the Audient iD4 MKII USB-C Audio Interface has a package weight of 1.92 lb, which is slightly heavier compared to the RODE AI-1. However, it still remains within a manageable range for portability. The box dimensions for the Audient iD4 MKII are 7.5 x 6 x 3.5 inches, making it slightly larger in size. This could suggest a more robust build or additional features that might require a bit more space.
In summary, the RODE AI-1 is lighter and more compact, which could be an advantage for users needing a highly portable solution. The Audient iD4 MKII, while slightly heavier and larger, might offer additional features or a more sturdy build, appealing to users who prioritize these aspects.