When comparing the MOTU M2 USB-C Audio/MIDI Interface with the Universal Audio Volt 2 USB-C Audio/MIDI Interface, it's clear that both devices cater to musicians, podcasters, and content creators seeking high-quality audio recording and playback. However, they each have unique attributes that set them apart.
The MOTU M2 stands out for its impressive audio performance, boasting a 120 dB dynamic range on its outputs and ultra-low latency. It features ESS Sabre32 Ultra DAC technology, which is typically found in high-end audio interfaces. The M2 offers two mic/line/hi-Z inputs with individual preamps that deliver pristine audio clarity, making it suitable for various recording needs. Additionally, it includes a full-color LCD screen that provides real-time level monitoring for precise adjustments, and it supports MIDI I/O for connecting external MIDI gear.
On the other hand, the Universal Audio Volt 2 also delivers exceptional audio quality, with a focus on vintage analog sound. It features a built-in Vintage Mic Preamp mode, which emulates the rich and warm tones of Universal Audio's classic 610 tube preamp, adding character to your recordings. The Volt 2 has two combo inputs for mic/line/hi-Z sources and offers 24-bit/192 kHz audio resolution. While it lacks a full-color LCD screen, it compensates with a robust build quality and an aesthetically pleasing retro design. The Volt 2 also supports MIDI I/O, allowing for seamless integration with MIDI controllers and instruments.
Both interfaces are bus-powered via USB-C, ensuring portability and ease of use. They are compatible with major DAWs and come bundled with a suite of software, though the specific offerings differ. The MOTU M2 typically includes Performer Lite, Ableton Live Lite, and a collection of virtual instruments and loops, whereas the Volt 2 comes with a more extensive software package, including Ableton Live Lite, Melodyne Essential, and a range of UAD plug-ins.
In conclusion, the MOTU M2 is ideal for users seeking high-fidelity audio performance and real-time monitoring capabilities, whereas the Universal Audio Volt 2 appeals to those who desire a vintage analog sound and a stylish, durable design. Both interfaces offer excellent value and functionality, making them strong contenders in the USB-C audio interface market.
User Rating Based on Analysis of Reviews |
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Pros: |
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High-quality audio conversion and preamps for professional sound.
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Compact and portable design, ideal for mobile recording.
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USB-C connectivity for fast and reliable data transfer.
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Includes vintage preamp mode for added warmth and character.
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Compatible with most major DAWs and recording software.
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Excellent sound quality with ESS Sabre32 Ultra DAC technology.
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Low latency performance for real-time monitoring.
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Sturdy and compact build, suitable for mobile use.
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USB-C connectivity ensures fast data transfer.
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Clear and detailed LCD metering.
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Cons: |
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Limited to two input channels, which may not be enough for larger recording sessions.
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No digital I/O options such as ADAT or S/PDIF.
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Lacks onboard DSP for real-time effects processing.
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Higher price point compared to some other entry-level interfaces.
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Limited to 2 inputs and 2 outputs.
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No onboard DSP effects.
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Some users may find the software bundle lacking.
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Requires a USB-C port for optimal performance, which may not be available on all computers.
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Key Specs |
Channels of I/O |
Analog: 2 Inputs / 2 Outputs |
Analog: 2 Inputs / 2 Outputs |
Maximum Sampling Rate |
192 kHz / 24-Bit |
192 kHz / 24-Bit |
Number of Microphone Inputs |
2 Preamps |
2 Preamps |
Analog Audio I/O |
2x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line/Hi-Z Input (Front Panel) 2x 1/4" TRS Balanced Monitor Output 1x 1/4" TRS Unbalanced Headphone Output (Front Panel) |
2x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line/Hi-Z Input 1x 1/4" TRS Unbalanced Headphone Output 2x 1/4" TRS Balanced Line Output (DC-Coupled) 2x RCA TS Unbalanced Line Output |
Host Connection |
1x USB-C |
1x USB-C |
OS Compatibility |
macOS 10.14 or Later Windows 10 (64-Bit Only) 14 or Later iPadOS 14 or Later |
macOS 10.11 or Later Windows 7 or Later 9 or Later |
Power Requirements |
AC/DC Power Adapter (Not Included) or USB Bus Power |
USB Bus Power |
The MOTU M2 USB-C Audio/MIDI Interface and the Universal Audio Volt 2 USB-C Audio/MIDI Interface are both high-quality audio interfaces that offer 2 channels of analog input and output, with a maximum sampling rate of 192 kHz at 24-bit resolution. Both interfaces include 2 preamp microphone inputs, making them suitable for a variety of recording needs.
The MOTU M2 features 2 combo XLR-1/4" TRS balanced/unbalanced inputs for mic, line, and Hi-Z instruments, along with 2 balanced TRS line outputs, 2 unbalanced RCA TS line outputs, and a 1/4" TRS headphone output. It connects to the host via USB-C and is compatible with macOS 10.11 or later, Windows 7 or later, and iOS 9 or later. The MOTU M2 is powered via USB bus power, which simplifies setup and reduces the need for additional power adapters.
The Universal Audio Volt 2 also includes 2 combo XLR-1/4" TRS balanced/unbalanced inputs for mic, line, and Hi-Z instruments, with 2 balanced TRS monitor outputs and a 1/4" TRS headphone output located on the front panel. It connects to the host via USB-C and is compatible with macOS 10.14 or later, Windows 10 (64-bit), iPadOS 14 or later. The Volt 2 can be powered either through an AC/DC power adapter (not included) or via USB bus power, providing flexibility depending on your setup and power availability.
In summary, both the MOTU M2 and Universal Audio Volt 2 offer similar features in terms of I/O channels, sampling rates, and microphone inputs. The main differences lie in their power options and specific OS compatibility requirements, with the MOTU M2 supporting a broader range of operating systems and being solely USB bus-powered, while the Volt 2 offers additional power flexibility via an optional power adapter.
General |
Channels of I/O |
Analog: 2 Inputs / 2 Outputs |
Analog: 2 Inputs / 2 Outputs |
Maximum Sampling Rate |
192 kHz / 24-Bit |
192 kHz / 24-Bit |
Number of Microphone Inputs |
2 Preamps |
2 Preamps |
Input Level Adjustment |
2x Knob |
2x Knob |
Expansion Slots |
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The MOTU M2 USB-C Audio/MIDI Interface and the Universal Audio Volt 2 USB-C Audio/MIDI Interface both offer a range of features suited for various audio production needs. Here’s a direct comparison of the two interfaces based on the specified features:
Both the MOTU M2 and the Universal Audio Volt 2 provide 2 analog inputs and 2 analog outputs, allowing for similar connectivity options for recording and playback. They both support a maximum sampling rate of 192 kHz at 24-bit resolution, ensuring high-quality audio recording and playback capabilities.
In terms of microphone inputs, both interfaces come with 2 preamps, enabling users to connect and record with two microphones simultaneously. Both devices also feature input level adjustment through 2 knobs, giving users control over the input levels for each channel.
Neither the MOTU M2 nor the Universal Audio Volt 2 includes built-in microphones, meaning users will need to connect external microphones for recording. Additionally, both interfaces lack expansion slots, indicating that additional connectivity options like ADAT or SPDIF are not supported.
In summary, the MOTU M2 and the Universal Audio Volt 2 are quite similar in their specifications, offering 2 analog inputs and outputs, 192 kHz / 24-bit maximum sampling rate, 2 preamps, input level adjustment via 2 knobs, and no built-in microphones or expansion slots.
Signal Processing |
Pad |
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High-Pass Filter |
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Solo/Mute |
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The MOTU M2 USB-C Audio/MIDI Interface and the Universal Audio Volt 2 USB-C Audio/MIDI Interface share several common specifications but also have distinct differences that cater to varying user needs.
Both interfaces lack pad switches, high-pass filters, and solo/mute functions. This means that neither device offers the ability to attenuate the input signal via a pad, filter out low frequencies using a high-pass filter, or isolate/mute individual channels for monitoring purposes. These missing features suggest that both interfaces are designed with simplicity in mind, focusing on core recording functionalities without additional signal processing options.
One significant difference between the two interfaces is the gain/trim range for the mic and line/Hi-Z inputs. The MOTU M2 offers a gain range of 0 dB to +60 dB for mic inputs and 0 dB to +57 dB for line/Hi-Z inputs. This range provides users with a considerable amount of flexibility in adjusting input levels to accommodate various signal strengths, making it suitable for a wide range of microphones and instruments. On the other hand, the Universal Audio Volt 2 does not specify its gain/trim range in the given information, which could imply a more limited or undefined adjustment capability compared to the MOTU M2.
In summary, while both the MOTU M2 and the Universal Audio Volt 2 share the absence of certain features such as pads, high-pass filters, and solo/mute options, the MOTU M2 distinguishes itself with a clearly defined and extensive gain/trim range for its inputs. This makes the MOTU M2 potentially more versatile in handling different audio sources.
Connectivity |
Analog Audio I/O |
2x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line/Hi-Z Input (Front Panel) 2x 1/4" TRS Balanced Monitor Output 1x 1/4" TRS Unbalanced Headphone Output (Front Panel) |
2x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line/Hi-Z Input 1x 1/4" TRS Unbalanced Headphone Output 2x 1/4" TRS Balanced Line Output (DC-Coupled) 2x RCA TS Unbalanced Line Output |
Phantom Power |
48 V, Selectable On/Off (Applied to All Inputs) |
48 V, Selectable On/Off (Selectable on Individual Inputs) |
Digital Audio I/O |
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Host Connection |
1x USB-C |
1x USB-C |
Host Connection Protocol |
USB 2.0 |
USB 2.0 |
USB (Non-Host) |
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Sync I/O |
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Network I/O |
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MIDI I/O |
1x DIN 5-Pin Input 1x DIN 5-Pin Output |
1x DIN 5-Pin Input 1x DIN 5-Pin Output |
The MOTU M2 and the Universal Audio Volt 2 are two high-quality USB-C audio/MIDI interfaces that cater to both professional and home studio setups. However, they have some key differences in their specifications that may influence your decision depending on your specific needs.
Starting with analog audio I/O, both interfaces offer 2x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line/Hi-Z Inputs, but the MOTU M2 places these on the front panel, whereas this placement detail for the Volt 2 was not specified. Additionally, both interfaces provide 1x 1/4" TRS Unbalanced Headphone Output, although the Volt 2's headphone output is notably on the front panel. For line outputs, the MOTU M2 offers more flexibility with 2x 1/4" TRS Balanced Line Outputs (DC-Coupled) and an additional 2x RCA TS Unbalanced Line Outputs, while the Volt 2 offers 2x 1/4" TRS Balanced Monitor Outputs.
When it comes to phantom power, both interfaces provide 48V phantom power. The MOTU M2 allows for selectable phantom power on individual inputs, offering greater control for mixed microphone types. In contrast, the Volt 2 applies phantom power to all inputs simultaneously, which might be less flexible for setups using both condenser and dynamic microphones at the same time.
Both devices lack digital audio I/O, USB (Non-Host) connections, sync I/O, and network I/O, indicating a focus on straightforward analog and MIDI connectivity without additional digital routing or networking capabilities.
For MIDI I/O, both the MOTU M2 and the Universal Audio Volt 2 provide 1x DIN 5-Pin Input and 1x DIN 5-Pin Output, ensuring compatibility with a wide range of MIDI gear.
In terms of host connection, both interfaces use 1x USB-C with USB 2.0 protocol, ensuring a modern and efficient connection to your computer or other host devices.
In summary, while both the MOTU M2 and Universal Audio Volt 2 share many similarities, the MOTU M2 offers slightly more flexible output options and individual phantom power control, making it potentially more versatile for certain audio setups. On the other hand, the Universal Audio Volt 2 provides a simpler and more streamlined interface, which might appeal to users looking for straightforward functionality.
Digital Audio |
Sample Rates |
Up to 192 kHz |
Up to 192 kHz |
Sample Rate Conversion |
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Bit Depths |
24-Bit |
24-Bit |
Latency |
Zero-Latency Direct Monitoring |
Zero-Latency Direct Monitoring2.5 ms at 96 kHz (Dependent on Buffer Size, Input to Output) |
Sync Sources |
Internal |
Internal |
The MOTU M2 and Universal Audio Volt 2 are both USB-C Audio/MIDI interfaces that offer high-quality audio recording and playback capabilities, each with their own unique features and strengths.
The MOTU M2 USB-C Audio/MIDI Interface supports sample rates of up to 192 kHz and a bit depth of 24-bit, providing high-resolution audio. It boasts zero-latency direct monitoring as well as a latency of 2.5 ms at 96 kHz, though this is dependent on the buffer size and input to output configuration. The sync source for the MOTU M2 is internal.
Similarly, the Universal Audio Volt 2 USB-C Audio/MIDI Interface also supports sample rates up to 192 kHz with a 24-bit depth, ensuring detailed audio quality. It features zero-latency direct monitoring, which is crucial for real-time audio monitoring without delay. The sync source for the Volt 2 is also internal.
In summary, both the MOTU M2 and Universal Audio Volt 2 offer comparable specifications in terms of sample rates, bit depths, zero-latency direct monitoring, and internal sync sources. The notable difference is the specific latency detail provided by the MOTU M2, which mentions 2.5 ms at 96 kHz depending on buffer size and input-output configuration, a detail not specified for the Volt 2.
Audio Storage & Playback |
Memory Card Slot |
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Both the MOTU M2 USB-C Audio/MIDI Interface and the Universal Audio Volt 2 USB-C Audio/MIDI Interface share a critical specification: neither of these devices features a memory card slot. This similarity indicates that both interfaces rely on direct computer storage and connectivity for recording and data transfer, rather than offering an onboard option for memory card usage.
The absence of a memory card slot in both models suggests that users will need to ensure that they have adequate storage solutions available on their connected devices, such as laptops or desktop computers, to handle their audio recordings and MIDI data. This design choice might be reflective of a focus on high-quality, real-time data transfer and processing capabilities, which are typically managed through the USB-C connection to the host computer.
Ultimately, for potential buyers evaluating these interfaces, the lack of a memory card slot means that considerations around workflow and data management will be similar for both the MOTU M2 and the Universal Audio Volt 2, with neither offering an advantage in this specific area.
Compatibility |
OS Compatibility |
macOS 10.14 or Later Windows 10 (64-Bit Only) 14 or Later iPadOS 14 or Later |
macOS 10.11 or Later Windows 7 or Later 9 or Later |
Processor Requirement |
Mac: Intel Apple M1 PC: Intel AMD |
Mac: 1 GHz Intel PC: 1 GHz Intel Pentium |
Required Hardware |
Available USB 2.0 Port USB Cable (Included) |
Available USB 2.0 Port USB Cable (Included) |
Internet Connection |
Required for Registration, Software/Driver Download |
Required for Software/Driver Download |
The MOTU M2 USB-C Audio/MIDI Interface and the Universal Audio Volt 2 USB-C Audio/MIDI Interface both offer robust and modern solutions for audio recording and MIDI interfacing, but they differ in several key specifications.
OS Compatibility:
The MOTU M2 is compatible with macOS 10.11 or later and Windows 7 or later, which makes it suitable for a broader range of operating systems, especially older versions. In contrast, the Universal Audio Volt 2 requires macOS 10.14 or later and Windows 10 (64-bit only), making it less flexible for users with older operating systems. Additionally, the Volt 2 is compatible with iPadOS 14 or later, offering more versatility for mobile device users, specifically iPad and iPhone.
Processor Requirement:
For processor requirements, the MOTU M2 requires at least a 1 GHz Intel processor on both Mac and PC platforms. On the other hand, the Universal Audio Volt 2 supports both Intel and Apple M1 processors on Mac and Intel and AMD processors on PC, providing more options for users with newer hardware setups.
RAM Requirements:
The MOTU M2 has a minimum RAM requirement of 2 GB, with 4 GB recommended for better performance. The Universal Audio Volt 2 does not specify RAM requirements in the provided specifications, suggesting that it may be more accommodating of various system configurations, or the RAM requirement is implicit within the supported OS requirements.
Required Hardware:
Both interfaces require an available USB 2.0 port and include a USB cable. This ensures that users can easily connect their devices without needing additional purchases.
Internet Connection:
Both the MOTU M2 and the Universal Audio Volt 2 require an internet connection for software or driver download. Additionally, the Volt 2 mandates an internet connection for registration.
In summary, while both the MOTU M2 and the Universal Audio Volt 2 provide essential features for audio and MIDI interfacing, the MOTU M2 offers broader OS compatibility and simpler processor requirements, making it a versatile choice for a wider range of users. The Universal Audio Volt 2, however, supports newer processors and mobile device compatibility, catering to users with more modern setups and those looking to integrate iPads or iPhones into their workflow.
Power |
Power Requirements |
AC/DC Power Adapter (Not Included) or USB Bus Power |
USB Bus Power |
The MOTU M2 USB-C Audio/MIDI Interface and the Universal Audio Volt 2 USB-C Audio/MIDI Interface differ significantly in their power requirements. The MOTU M2 is designed to be powered solely through USB bus power, which simplifies its setup and makes it highly portable and convenient for use with laptops or other devices that supply USB power.
On the other hand, the Universal Audio Volt 2 offers more flexibility in its power options. It can be powered either through USB bus power or via an AC/DC power adapter, which is not included with the unit. The AC/DC power adapter required is 5 VDC. This dual power option allows the Volt 2 to be used in a wider range of scenarios, including those where USB bus power might not be sufficient or available.
In summary, the MOTU M2 focuses on simplicity and portability with its exclusive reliance on USB bus power, while the Universal Audio Volt 2 provides more versatility with its ability to use either USB bus power or an external 5 VDC power adapter.
Physical |
Anti-Theft Features |
Kensington Security Slot |
Kensington Security Slot |
The MOTU M2 USB-C Audio/MIDI Interface and the Universal Audio Volt 2 USB-C Audio/MIDI Interface share some common features, but also have distinct differences that may influence a user's choice based on their specific needs.
Both the MOTU M2 and the Universal Audio Volt 2 are equipped with anti-theft features, specifically a Kensington Security Slot, which allows users to secure their devices in environments where theft might be a concern. This is an important feature for those who need to ensure the safety of their equipment in public or semi-public spaces.
In terms of physical dimensions, the MOTU M2 measures 7.5 x 4.25 x 1.75 inches (19.1 x 10.79 x 4.45 cm), making it a compact unit that is easy to transport and fit into various studio setups. It also weighs 1.4 lbs (0.6 kg), which adds to its portability without compromising on build quality. The dimensions and weight of the Universal Audio Volt 2 are not specified in the provided information, which might require potential buyers to seek out further details if size and weight are critical factors for their setup.
The detailed specifications provided show a clear similarity in terms of anti-theft features, but the MOTU M2 provides more explicit information on its physical dimensions and weight, which can be crucial for users looking to integrate the interface into a specific physical setup or for those who are frequently on the move and need to consider portability.
Packaging Info |
Package Weight |
2.205 lb |
1.8 lb |
Box Dimensions (LxWxH) |
9.2 x 7.3 x 3.9" |
10 x 7.45 x 2.75" |
The MOTU M2 USB-C Audio/MIDI Interface and the Universal Audio Volt 2 USB-C Audio/MIDI Interface each offer distinct specifications regarding package weight and box dimensions.
The MOTU M2 has a package weight of 1.8 pounds and box dimensions of 10 x 7.45 x 2.75 inches. This indicates a relatively lightweight and compact form factor, which can be beneficial for portability and space-saving in a studio setup.
On the other hand, the Universal Audio Volt 2 has a package weight of 2.205 pounds and box dimensions of 9.2 x 7.3 x 3.9 inches. While slightly heavier than the MOTU M2, the Volt 2 remains relatively compact but with a bit more depth in its box dimensions, suggesting a possibly more robust build or additional features within its packaging.
Both interfaces utilize USB-C connectivity, catering to modern connectivity standards, but their physical specifications highlight the MOTU M2 as slightly lighter and more compact, while the Universal Audio Volt 2 offers a marginally larger and heavier package.