Focusrite is on this site twice, and the pages exist largely to answer one
question: Solo or 2i2?
What we found writing the reviews
The difference is arithmetic, not quality. The Solo has one microphone
preamp, the 2i2 has two. One voice at a time, or a voice and a guitar in the
same take. Everything else — the 120 dB converters, Air mode, USB-C, the
software — is shared.
The fourth generation targets beginners specifically. Auto Gain sets the
recording level, which is the thing most people get wrong by recording far too
quietly and amplifying the noise afterwards. Clip Safe prevents overload on the
way in. Neither replaces judgment, and both remove a category of ruined take.
The driver is the real product. On Windows, a manufacturer-maintained
low-latency driver is what makes playing in time with a recording possible, and
it is the thing generic interfaces cannot provide. Focusrite maintains theirs.
The software bundle is not a demo. Pro Tools Intro+, Ableton Live Lite,
Cubase LE and the Hitmaker Expansion arrive with the unit — for someone
starting out, that is the difference between an interface and a studio.