Solid State Logic SSL 2 MKII - 2x2 USB Audio Interface vs Universal Audio Apollo Solo Heritage Edition, APLS-HE
Updated August 2026 — Universal Audio Apollo Solo Heritage Edition, APLS-HE leads on support and build quality.
The Solid State Logic SSL 2 MKII offers great value for beginners, while the Universal Audio Apollo Solo Heritage Edition provides advanced features for professionals.
Why Solid State Logic SSL 2 MKII - 2x2 USB Audio Interface is better
Price
SSL 2 MKII is significantly cheaper.
Portability
Both are bus-powered, but SSL is simpler.
Basic Features
SSL offers essential features for beginners.
Why Universal Audio Apollo Solo Heritage Edition, APLS-HE is better
Audio Quality
Apollo Solo has superior sound processing.
Software Bundle
Apollo includes high-value plug-ins.
Build Quality
Apollo has a more premium build.
Overall score
Specifications
| Spec | Solid State Logic SSL 2 MKII - 2x2 USB Audio Interface | Universal Audio Apollo Solo Heritage Edition, APLS-HE |
|---|---|---|
| Mic Preamps | 2 | 2 |
| AD/DA Converters | 32-bit/192 kHz | N/A |
| Plug-ins | SSL Production Pack | UAD Plug-ins |
| Latency | Zero | Near-zero |
| Sales Rank | 1714 | 4750 |
Dimension comparison
Overview of the Solid State Logic SSL 2 MKII
The Solid State Logic SSL 2 MKII is priced at $229.99, making it a compelling option for producers, podcasters, and musicians. This audio interface is designed with two XLR mic preamps and supports a variety of input configurations, providing flexibility for different recording needs.
This model’s features include 32-bit/192 kHz AD/DA converters, which offer high-quality sound reproduction. Additionally, it incorporates the Legacy 4K analog enhancement feature, allowing users to add warmth and character to their recordings. The SSL 2 MKII also provides MIDI I/O on 5-pin DIN jacks, further enhancing its versatility for various music production setups.
Overview of the Universal Audio Apollo Solo Heritage Edition
At $599.00, the Universal Audio Apollo Solo Heritage Edition positions itself as a premium choice in the audio interface market. This model comes bundled with a suite of five award-winning plug-in titles valued at over $1,300, which is a significant addition for those looking to enhance their production capabilities.
The Apollo Solo features UAD SOLO Core Processing, enabling users to track through vintage compressors, EQs, and mic preamps with near-zero latency. It also includes Unison technology for mic preamp and guitar amp emulations from renowned brands, enhancing the audio quality further. The build quality of the Apollo Solo is uncompromising, providing a superior user experience.
Audio Quality Comparison
When it comes to audio quality, the Solid State Logic SSL 2 MKII offers 32-bit/192 kHz AD/DA converters, which ensure a high level of fidelity in recordings. This is particularly beneficial for musicians and podcasters who prioritize sound clarity.
On the other hand, the Universal Audio Apollo Solo Heritage Edition's UAD SOLO Core Processing allows for real-time tracking through various emulations, providing a unique edge in sound manipulation. The Apollo’s integration with a premium suite of plug-ins adds substantial value, making it ideal for users who wish to experiment with different sound textures and effects in their projects.
Usability and Portability
The Solid State Logic SSL 2 MKII is bus-powered, making it convenient for users who work on the go. This feature is particularly advantageous for mobile recording setups, as it reduces cable clutter and simplifies the connection process with both Mac and Windows systems.
Conversely, the Universal Audio Apollo Solo Heritage Edition is also bus-powered and designed for easy portability. Its Thunderbolt 3 connectivity ensures fast and reliable performance, which is essential for professional audio work. Both interfaces excel in usability, but the Apollo Solo's integration with the LUNA Recording System adds an extra layer of functionality for Mac users.
Features and Software
The SSL 2 MKII comes with the SSL Production Pack Software Bundle, which enhances its value for those starting in audio production. This software suite includes various tools that help users get the most out of their recordings.
In comparison, the Universal Audio Apollo Solo Heritage Edition stands out with its bundled UAD plug-ins, which are highly regarded in the industry. These plug-ins allow for advanced audio processing, making it an attractive option for professionals seeking high-quality effects. The Apollo’s compatibility with major DAWs, including Logic Pro and Pro Tools, further solidifies its position as a comprehensive audio solution.
Price and Value
The Solid State Logic SSL 2 MKII is priced at $229.99, about 61% less than the Universal Audio Apollo Solo Heritage Edition, which retails for $599.00. This significant price difference makes the SSL 2 MKII a more accessible option for beginners or those with budget constraints.
However, the Apollo Solo’s higher price is justified by its advanced features and premium software package. For users looking for professional-grade sound processing and a more extensive suite of tools, the investment in the Apollo Solo may be worthwhile.
Sales Performance
The Solid State Logic SSL 2 MKII currently holds a bestseller rank of 1714, indicating a solid performance in the market. This suggests that it is a popular choice among users looking for a reliable audio interface.
The Universal Audio Apollo Solo Heritage Edition has a slightly lower sales rank of 4750, which might reflect its niche appeal among professionals and serious enthusiasts. While both products are well-regarded, the SSL 2 MKII's higher sales rank could suggest broader market acceptance, especially among entry-level users.
Which should you buy?
Choosing between the Solid State Logic SSL 2 MKII and the Universal Audio Apollo Solo Heritage Edition ultimately depends on your specific needs and budget. The SSL 2 MKII is about 61% cheaper and provides essential features for beginners or casual users, making it an attractive option for those just starting in audio production.
On the other hand, if you are a professional or a serious enthusiast looking for advanced sound processing capabilities and high-quality plug-ins, the Apollo Solo Heritage Edition's premium offerings justify its higher price. Both interfaces excel in portability and usability, but the choice hinges on whether you prioritize cost or advanced features in your audio production setup.

