Check the listing for details. Focusrite Scarlett Solo 4th Gen USB Audio Interface. Condition: Very Good - Refurbished. Listed at 143.99 USD. The Scarlett Gets a Serious Overhaul The 4th-gen Focusrite Scarlett Solo gives songwriters plenty of reasons to upgrade their previous-generation interface, such as an updated mic preamp, RedNet-derived AD/DA conversion, Dynamic Gain Halos, and more. This 2-in/2-out USB-C audio interface includes a guitar-friendly hi-Z input, a custom-designed headphone amp, loopback, and Focusrite's acclaimed Air Mode. Beginners will appreciate Focusrite's Easy Start tool. You also get a sizable cache of included software, giving you everything you need to record, mix, and master your music. Add to that the Scarlett Solo's premium build quality, and you get a near-bulletproof studio solution that's great for beginners and seasoned recordists alike.