Mackie Onyx Artist 1x2 vs Focusrite Scarlett 18i20 3rd Gen: Get the Focusrite Scarlett 18i20 3rd Gen. The Focusrite Scarlett 18i20 3rd Gen wins Mic Inputs...
The Ruling
The Focusrite Scarlett 18i20 3rd Gen wins Mic Inputs, Monitoring, Creator Features and Connectivity. It is the pricier of the two at $599.99, so the Mackie Onyx Artist 1x2 stays the pick if $540.04 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 | Mackie Onyx Artist 1x2 | 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 | 10/10 |
| 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 Mackie Onyx Artist 1x2 takes 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 $540.04.
Leads on
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 bus powered to the Mackie Onyx Artist 1x2. That costs $540.04 more than the Mackie Onyx Artist 1x2.
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 7 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 Mackie Onyx Artist 1x2 does not. Across the catalog's specification sheet the two differ on 5 specs. They match on 7 specs, including connection type, operating system and sample rate. Two audio interfaces from Mackie 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, Creator Features and Connectivity. It is the pricier of the two at $599.99, so the Mackie Onyx Artist 1x2 stays the pick if $540.04 matters more than those specs.
Both share 7 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 $59.95, a difference of $540. 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.