Get the Focusrite Scarlett 18i20 3rd Gen. The Focusrite Scarlett 18i20 3rd Gen wins Creator Features and Connectivity. It is the pricier of the two at...
The Ruling
The Focusrite Scarlett 18i20 3rd Gen wins Creator Features and Connectivity. It is the pricier of the two at $599.99, so the SSL 2+ USB Audio Interface stays the pick if $400.99 matters more than those specs.
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 | SSL 2+ USB Audio Interface | Focusrite Scarlett 18i20 3rd Gen |
|---|---|---|
| Audio Resolution | 10/10 | 10/10 |
| Preamps | 10/10 | 9.7/10 |
| Mic Inputs | 10/10 | 10/10 |
| Monitoring | 10/10 | 10/10 |
| Creator Features | 5/10 | 10/10 |
| Connectivity | 4/10 | 10/10 |
The Split
Desktop audio interface intended for creator workflows, microphone input, monitoring, and clean signal routing.
On paper the SSL 2+ USB Audio Interface takes bus powered (Yes) and preamp gain (62dB, +2dB). 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
Bus power means the interface runs off USB alone — no wall adapter to carry or find a socket for.
More gain drives quiet dynamic microphones like the SM7B without a separate booster.
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) and TRS outputs (10, +6). It gives up bus powered and preamp gain to the SSL 2+ USB Audio Interface. That costs $400.99 more than the SSL 2+ USB 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.
These 10 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 ADAT expansion, which the Focusrite Scarlett 18i20 3rd Gen has and the SSL 2+ USB Audio Interface does not. Across the catalog's specification sheet the two differ on 4 specs. They match on 10 specs, including connection type, operating system and sample rate. Two audio interfaces from SSL 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 Creator Features and Connectivity. It is the pricier of the two at $599.99, so the SSL 2+ USB Audio Interface stays the pick if $400.99 matters more than those specs.
Both share 10 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) and TRS outputs (10). Whether that is worth it depends on which of those you would actually use.