Get the Focusrite Scarlett 18i20 3rd Gen. The Focusrite Scarlett 18i20 3rd Gen wins Mic Inputs, Monitoring and Connectivity. It is the pricier of the two...
The Ruling
The Focusrite Scarlett 18i20 3rd Gen wins Mic Inputs, Monitoring and Connectivity. It is the pricier of the two at $599.99, so the Steinberg UR12C Audio Interface stays the pick if $400.99 matters more than those specs.
Unless…
At a Glance
Every axis is scored out of 10 from the catalog specs below. The scores are relative to the products on this page, so a 10 means “best of these”, not “perfect”, and two identical columns mean the catalog genuinely cannot separate them. Axes the catalog holds no figure for on both sides are left off entirely rather than guessed at.
| Category | Steinberg UR12C Audio Interface | Focusrite Scarlett 18i20 3rd Gen |
|---|---|---|
| Audio Resolution | 10/10 | 10/10 |
| Mic Inputs | 5/10 | 10/10 |
| Monitoring | 7.5/10 | 10/10 |
| Creator Features | 5/10 | 5/10 |
| Connectivity | 2/10 | 10/10 |
| Power | 10/10 | 0/10 |
The Split
Desktop audio interface intended for creator workflows, microphone input, monitoring, and clean signal routing.
On paper the Steinberg UR12C Audio Interface takes loopback (Yes) and bus powered (Yes). It gives up ADAT expansion and TRS outputs to the Focusrite Scarlett 18i20 3rd Gen. It is the cheaper of the two, by $400.99.
Leads on
Loopback routes computer audio back into the stream without a second interface or cable.
Bus power means the interface runs off USB alone — no wall adapter to carry or find a socket for.
Desktop audio interface intended for creator workflows, microphone input, monitoring, and clean signal routing.
On paper the Focusrite Scarlett 18i20 3rd Gen takes ADAT expansion (Yes), TRS outputs (10, +8), XLR inputs (2, +1) and headphone outputs (2, +1). It gives up loopback and bus powered to the Steinberg UR12C Audio Interface. That costs $400.99 more than the Steinberg UR12C Audio Interface.
Leads on
ADAT lets you add eight more inputs later instead of replacing the interface.
More TRS outputs allow routing to studio monitors and outboard gear.
More XLR inputs let you record multiple microphones simultaneously.
A second headphone output lets a guest monitor without a splitter.
These 6 specs are the same on both of them, so none of it is part of the decision.
The Record
A group is won by whoever takes more of its rows outright. Specs the catalog cannot rank are shown but never decide a group.
Bottom Line
The Focusrite Scarlett 18i20 3rd Gen is the pick on the specs the catalog holds, but “better on paper” and “right for you” are different questions. Each case below names what the product is actually good at and who that suits.
The clearest difference is loopback, which the Steinberg UR12C Audio Interface has and the Focusrite Scarlett 18i20 3rd Gen does not. Across the catalog's specification sheet the two differ on 6 specs. They match on 6 specs, including connection type, operating system and sample rate. Two audio interfaces from Steinberg and Focusrite, each taking a different approach to audio quality and I/O flexibility.
Get the Focusrite Scarlett 18i20 3rd Gen. The Focusrite Scarlett 18i20 3rd Gen wins Mic Inputs, Monitoring and Connectivity. It is the pricier of the two at $599.99, so the Steinberg UR12C Audio Interface stays the pick if $400.99 matters more than those specs.
Both share 6 specifications in the catalog, including connection type (usb-c, xlr, trs), operating system (windows, macos), sample rate (192kHz) and bit depth (24-bit), among others. None of those is a reason to pick one over the other.
The Focusrite Scarlett 18i20 3rd Gen costs $599.99 against $199.00, a difference of $401. The premium buys ADAT expansion (Yes), TRS outputs (10) and XLR inputs (2). Whether that is worth it depends on which of those you would actually use.