Solid State Logic SSL 2 MKII vs Audient Audio Interface iD4 MKII
Updated April 2026 — Solid State Logic SSL 2 MKII wins on compatibility and portability, Audient Audio Interface iD4 MKII wins on software and inputs/outputs.
$214.90Audient Audio Interface iD4 MKII, Class A Console Microphone Preamp (High Speed USB-C, Monitor Mix and Monitor Panning Function, 2 Headphone Outputs, Mac/PC/iOS Compatible), Black
Audient
The Audient Audio Interface iD4 MKII (Product B) edges out the Solid State Logic SSL 2 MKII (Product A) due to superior audio resolution specifications and expanded connectivity options including MIDI. However, Product A offers a lower price point and broader operating system compatibility including iOS, making it a strong contender for mobile users.
Why Solid State Logic SSL 2 MKII is better
Lower Purchase Price
Listed at $214.90 compared to $229.99
Confirmed Physical Dimensions
Compact 133x120x40.7 mm chassis
iOS Compatibility
Supports Mac/PC/iOS versus Mac/Windows only
Why Audient Audio Interface iD4 MKII is better
Higher Audio Resolution
Specifies 32-Bit / 192 kHz AD/DA Converters
Dedicated MIDI Connectivity
Includes MIDI I/O on 5-Pin DIN Jacks
Comprehensive Software Bundle
Includes SSL Production Pack Software Bundle
Overall score
Specifications
| Spec | Solid State Logic SSL 2 MKII | Audient Audio Interface iD4 MKII |
|---|---|---|
| Price | $214.90 | $229.99 |
| Brand | Audient | Solid State Logic |
| Connector | USB-C | Bus Powered |
| Dimensions | 133x120x40.7 mm | null |
| Weight | 740 g | null |
| Compatibility | Mac/PC/iOS | Mac/Windows |
| Audio Resolution | null | 32-Bit / 192 kHz |
| MIDI | null | 5-Pin DIN Jacks |
| Software Bundle | null | SSL Production Pack |
| Preamps | Class-A Console | 2 XLR Mic Preamps |
Dimension comparison
Design and Build Quality
The Solid State Logic SSL 2 MKII features an all-metal desktop housing designed to provide stability and durability on the move. With dimensions of 133x120x40.7 mm and a weight of 740 g, it is engineered for portability. The construction aims to ensure the audio interface can be easily transported while maintaining structural integrity. In contrast, the Audient Audio Interface iD4 MKII focuses on a functional desktop design suitable for producers and musicians, though specific physical dimensions and weight metrics are not explicitly detailed in the provided specifications. Both units are built to withstand regular studio use.
Connectivity and Ports
Connectivity options differ significantly between the two models. The Solid State Logic SSL 2 MKII utilizes a high-speed USB-C connector, which simplifies handling and improves power supply efficiency without needing multiple cable types. The Audient Audio Interface iD4 MKII is bus-powered and includes MIDI I/O on 5-Pin DIN Jacks, offering expanded connectivity for external musical instruments and controllers that the former lacks. This inclusion of traditional MIDI ports provides a distinct advantage for users integrating hardware synthesizers.
Audio Performance and Conversion
Audio conversion capabilities are a critical differentiator. The Audient Audio Interface iD4 MKII specifies 32-Bit / 192 kHz AD/DA converters, ensuring high-fidelity audio recording and playback. It also features Legacy 4K Analog Enhancement, which adds analog coloration to the signal path. The Solid State Logic SSL 2 MKII highlights Class-A microphone preamplifiers derived from Audient's high-end ASP8024 HE console, focusing on sonic quality through preamp technology rather than explicit converter bit-depth specifications in the provided data.
Inputs and Outputs Configuration
Input and output configurations cater to different workflow needs. The Audient Audio Interface iD4 MKII offers 2 XLR Mic Preamps and 2 1/4-inch Line/Hi-Z Inputs, alongside 2 Headphone Outputs and 2 1/4-inch Line Outputs. It also includes Stereo Loopback functionality for content creation. The Solid State Logic SSL 2 MKII emphasizes its Class-A console microphone preamplifier technology but does not explicitly list the count of line outputs or headphone jacks in the provided feature set, focusing instead on the quality of the preamplification stage.
Power and Efficiency
Both devices are designed for efficient power usage suitable for home recording environments. The Solid State Logic SSL 2 MKII notes that the USB-C connector improves power supply, eliminating the need for various cables. The Audient Audio Interface iD4 MKII is explicitly listed as Bus Powered, meaning it draws power directly from the computer connection without an external power brick. This makes both units viable for mobile setups, though the USB-C implementation on Product A may offer improved power delivery standards.
Software and Ecosystem
Software bundles add value to the hardware purchase. The Audient Audio Interface iD4 MKII includes the SSL Production Pack Software Bundle, providing users with additional tools for production immediately out of the box. The Solid State Logic SSL 2 MKII does not list a specific software bundle in the provided data, focusing instead on hardware compatibility with Mac, PC, and iOS systems. Users prioritizing included software assets may find the former more appealing.
Price and Value
Pricing plays a significant role in the value proposition. The Solid State Logic SSL 2 MKII is listed at $214.90, making it the more affordable option between the two. The Audient Audio Interface iD4 MKII is priced at $229.99. While the price difference is marginal, the lower cost of Product A combined with its iOS compatibility may offer better value for mobile musicians. However, Product B justifies the higher cost with expanded technical specifications such as MIDI ports and higher resolution converters.
Which One Should You Buy?
Choosing between these interfaces depends on specific workflow requirements. If MIDI connectivity, higher resolution audio specifications, and a included software bundle are priorities, the Audient Audio Interface iD4 MKII is the stronger choice. However, if portability, iOS compatibility, and a lower price point are more important, the Solid State Logic SSL 2 MKII offers a compelling package with robust preamplifier technology and USB-C convenience.
