Dive into our Scarlett Solo 4th gen review and discover if the new auto-gain, enhanced preamps, and improved Air mode make it worth the upgrade for your studio.
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OUR VERDICT
The Scarlett Solo 4th Gen builds upon its predecessor with significant improvements in preamp quality, audio conversion, and workflow automation. The addition of auto-gain and an enhanced Air mode with Presence control makes recording simpler and more reliable.
This interface balances professional features with straightforward operation, making it particularly appealing for voice recording and instruments.
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Scarlett Solo 4th Gen
| Key Features
- Inputs: 1x XLR mic + 1x ¼" instrument in
- Outputs: 2x ¼" balanced line + 1x ¼" headphone out
- Compatibility: Windows, macOS (iOS and Android app)
- Resolution: 24-bit/192kHz
- Connectivity: USB-C (USB 2.0)
- Plus: Loopback functionality, Auto Gain, enhanced Air mode, remote control via Focusrite Control app
| Pros
- Solo musicians recording vocals and instruments
- Streamers needing high-quality audio
- Podcasters and voice-over artists
- Home studio beginners
- Guitar/bass players requiring direct recording
- Content creators on a budget
| Cons
- Band recordings requiring multiple inputs
- Complex studio setups
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1. Overview: Enhanced Scarlett Solo 4Gen
The Scarlett Solo 4th generation introduces key improvements over its predecessor: increased dynamic range (122dB), higher preamp gain (69dB), and enhanced Air mode with Presence control. The addition of auto-gain simplifies input level setting, while the new loopback feature enables recording of computer audio alongside microphone inputs.
What stands out immediately is how Focusrite has addressed common pain points for home recording.
The addition of auto-gain functionality, for instance, solves one of the most frequent challenges newcomers face – setting appropriate recording levels. Moreover, the enhanced Air mode and improved preamps demonstrate that Focusrite isn’t just resting on their laurels but actively pushing what’s possible in this price range.
2. Features Explained: What's New
XRL Input
Microphone input
USB-C
Connect to your computer. Loopback feature available
Balanced outputs, connect to studio monitors
Connect to you studio monitors.
Headphones Output
Real time monitoring
Direct Monitor
Hear yourself with no delay
Phantom Power
Supports condenser microphones
Instrument Input
Connect guitar and bass
Air Mode
Polished vocals without additional processing
Enhanced 69dB Preamp Technology
- What It Means for You: It is like having a sound engineer automatically adjusting your microphone levels. You’ll get cleaner recordings with less noise, especially when using gain-hungry microphones like the Shure SM7B.
Auto Gain and Clip Safe
- What It Means for You: This intelligent feature automatically sets optimal recording levels while preventing unwanted peaks. Like having a safety net that catches audio peaks before they ruin your recording. No more stressed monitoring of input levels during crucial takes.
Upgraded Air Mode
- What It Means for You: The new Air mode now includes Presence and Harmonic Drive controls. It’s like having an expensive microphone enhancer built right in. Your vocals will sound more polished and professional without additional processing.
Improved Converters
- What It Means for You: The AD/DA converters, borrowed from Focusrite’s premium RedNet range, deliver 122dB of dynamic range. Similar to upgrading from standard to high-definition TV, you’ll hear more detail and depth in your recordings.
Direct Monitor Enhancement
- What It Means for You: The redesigned direct monitor circuit offers near-zero round trip latency monitoring. You can record while hearing yourself in real-time, just like using an analog mixer, with no distracting delay.
1x XLR mic + 1x ¼" Instrument Inputs
- What It Means for You: This input configuration has phantom power for condenser mics ensures you can seamlessly switch between recording vocals and instruments.
2x ¼" Balanced Line + 1x ¼" Headphone Outputs
- What It Means for You: These outputs provide flexibility for connecting studio monitors and headphones simultaneously.
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Scarlett Solo 4th Gen
3. Specs Table
| Feature | Specification | Practical Benefit |
|---|---|---|
Simultaneous I/O |
2-in/2-out |
Record and monitor in stereo |
XLR Mic Input |
1x Neutrik XLR |
Professional-grade connector reliability |
Hi-Z Inputs |
1x ¼” TS |
Optimized for guitar/bass direct recording |
Line/Monitor Outputs |
2x ¼” TRS |
Connect to studio monitors |
Headphone Output |
1x ¼” TRS |
High-power headphone monitoring |
Compatibility |
Windows, macOS (iOS and Android app) |
Wide system compatibility |
Preamps |
Remote-controlled, 69dB gain |
Clean, professional-grade amplification |
Resolution |
24-bit/192kHz |
Studio-quality recording capability |
Phantom Power |
Yes (48V) |
Powers professional condenser mics |
Direct Monitor |
Yes, enhanced circuit |
Zero-latency monitoring |
Connectivity |
USB-C |
Modern, reliable connection |
Plus |
Loopback, Auto Gain, Air mode, remote control via Focusrite Control app, software bundle |
Enhanced recording flexibility, Hitmaker Expansion included |
4. Performance: Real-World Results
During testing, the Scarlett Solo 4th gen consistently impressed with its low round trip latency and clean signal path. When recording acoustic guitar through a condenser microphone, the enhanced Air mode added a beautiful top-end sparkle that required minimal EQ adjustment afterward.
The preamp performance particularly stood out when compared to the PreSonus AudioBox USB 96 and Behringer UMC204HD. Recording vocals through an SM58, I achieved cleaner, more professional-sounding results with less gain-induced noise. The auto-gain feature proved remarkably accurate, setting optimal levels for different sources from quiet spoken word to loud guitar amplifiers.
5. Design and Usability
Focusrite has maintained their iconic red aluminum chassis while improving the overall build quality. The gain halos are now brighter and easier to read, while the direct monitor control feels more precise than previous generations.
The front panel layout remains intuitive, with all essential controls within easy reach. The new USB-C connection feels more secure than the older USB-B port, though it’s worth noting it still operates at USB 2.0 speeds – which is perfectly adequate for the interface’s capabilities.
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Scarlett Solo 4th Gen
6. Setting Up Your Scarlett Solo 4Gen
Windows Setup:
- Download Focusrite Control from the official website
- Connect the interface via USB-C
- Install drivers when prompted
- Open your DAW and select Scarlett Solo as your audio device
- Set sample rate and buffer size in Focusrite Control
macOS Setup:
- Connect the interface via USB-C
- Download and install Focusrite Control
- Select Scarlett Solo in System Preferences > Sound
- Configure your DAW to use the interface
- Adjust buffer size based on your needs
7. Final Thoughts: Scarlett Solo 4Gen
After these last few weeks using Scarlett Solo 4th Gen in various recording scenarios, it’s clear that Focusrite has created something special. The improved preamps, intelligent features like auto-gain, and enhanced Air mode make this more than just another budget audio interface – it’s a capable recording tool that punches above its weight class.
While alternatives like the Behringer UM2, MiniFuse 1 or M-Track Solo offer compelling features, the Scarlett Solo 4th Gen provides an excellent balance of professional features, ease of use, and value. For podcasters, streamers, or musicians recording one source at a time, it’s hard to find a better option in this price range.
8. FAQ
How does the Scarlett Solo 4th Gen compare to the 3rd gen?
What makes it better than other budget interfaces?
The Scarlett Solo 4th Gen stands out with its premium features, such as 69dB of clean gain on its preamps, Auto Gain functionality, and the enhanced Air mode for polished recordings. Additionally, it includes upgraded converters with a dynamic range of 122dB, rivaling more expensive interfaces.
Read: Best Budget Audio Interface: 10 Ultimate Picks for 2025
Can I use the Scarlett Solo 4Gen for iPad recording?
The Scarlett Solo 4th Gen is compatible with iPads that have a USB-C port or use an adapter. You’ll need a USB-C to USB cable and might require a powered USB hub for sufficient power. Once connected, the interface works seamlessly with apps like GarageBand, making it an excellent option for mobile recording setups.
Can I use the Scarlett Solo 4Gen for streaming?
Yes, the Scarlett Solo 4th gen works excellently for streaming, thanks to its reliable drivers, low-latency monitoring, and new loopback feature. The auto-gain feature is particularly useful during live streams.
Read: How to Use an Audio Interface for Streaming: Best Tips
Does the Scarlett Solo 4th Gen require drivers on Mac?
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Bassist, guitarist and producer with a long history in bands, I’ve spent more than 20 years immersed in music and gear. When I’m not playing, I’m writing about audio music, studio setups, recording and everything that helps musicians sound their best.