Focusrite Scarlett 18i20 3rd Gen vs EVO 4x4 USB-C Audio Interface

Focusrite Scarlett 18i20 3rd Gen vs EVO 4x4 USB-C Audio Interface compared — specs, features, and which one to buy for your setup. See the full breakdown on CreatorConfig.

Focusrite Scarlett 18i20 3rd Gen
Focusrite
Focusrite Scarlett 18i20 3rd Gen
$149.99
EVO 4x4 USB-C Audio Interface
Evo
EVO 4x4 USB-C Audio Interface
$199

The Ruling

Focusrite Scarlett 18i20 3rd Gen or EVO 4x4 USB-C Audio Interface? Get the Focusrite Scarlett 18i20 3rd Gen, narrowly.

The Focusrite Scarlett 18i20 3rd Gen wins Connectivity — but only just, and the rest of the chart is close. It is also the cheaper of the two, by $49.01.

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At a Glance

Where each one actually leads

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.

CategoryFocusrite Scarlett 18i20 3rd GenEVO 4x4 USB-C Audio Interface
Audio Resolution10/1010/10
Preamps10/109.7/10
Mic Inputs10/1010/10
Monitoring10/1010/10
Creator Features5/105/10
Connectivity10/104/10

The Split

What each one wins

Focusrite Scarlett 18i20 3rd Gen

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, +6) and preamp gain (60dB, +2dB). It gives up loopback and bus powered to the EVO 4x4 USB-C Audio Interface. It is the cheaper of the two, by $49.01.

Leads on

  • ADAT Expansion
    Yes
    No

    ADAT lets you add eight more inputs later instead of replacing the interface.

  • TRS Outputs +6
    10
    4

    More TRS outputs allow routing to studio monitors and outboard gear.

  • Preamp Gain +2dB
    60dB
    58dB

    More gain drives quiet dynamic microphones like the SM7B without a separate booster.

EVO 4x4 USB-C Audio Interface

Desktop audio interface intended for creator workflows, microphone input, monitoring, and clean signal routing.

On paper the EVO 4x4 USB-C Audio Interface takes loopback (Yes) and bus powered (Yes). It gives up ADAT expansion and TRS outputs to the Focusrite Scarlett 18i20 3rd Gen. That costs $49.01 more than the Focusrite Scarlett 18i20 3rd Gen.

Leads on

  • Loopback
    Yes
    No

    Loopback routes computer audio back into the stream without a second interface or cable.

  • Bus Powered
    Yes
    No

    Bus power means the interface runs off USB alone — no wall adapter to carry or find a socket for.

Where they’re identical

These 8 specs are the same on both of them, so none of it is part of the decision.

  • Connection Type usb-c, xlr, trs
  • Operating System windows, macos
  • Sample Rate 192kHz
  • Bit Depth 24-bit
  • Phantom Power Yes
  • XLR Inputs 2
  • Headphone Outputs 2
  • Direct Monitoring Yes

The Record

19 specs, grouped by area

Full specification comparison of Focusrite Scarlett 18i20 3rd Gen and EVO 4x4 USB-C Audio Interface, grouped by area.
Specification
Focusrite
Focusrite Scarlett 18i20 3rd Gen
Evo
EVO 4x4 USB-C Audio Interface
Audio ResolutionEven
Sample Rate192kHz192kHz
Max Sample Rate192kHzno data
Bit Depth24-bit24-bit
PreampsFocusrite Scarlett 18i20 3rd Gen
Preamp Gain✓ 60dB58dB
Dynamic Rangeno data113dB
Mic InputsEven
XLR Inputs22
MonitoringEven
Headphone Outputs22
Direct MonitoringYesYes
Creator FeaturesEven
LoopbackNo✓ Yes
ADAT Expansion✓ YesNo
MIDI I/OIn/OutNone
Bundled Softwareno datano data
ConnectivityFocusrite Scarlett 18i20 3rd Gen
TRS Outputs✓ 104
Connection Typeusb-c, xlr, trsusb-c, xlr, trs
PowerEVO 4x4 USB-C Audio Interface
Bus PoweredNo✓ Yes
Phantom PowerYesYes
BuildNot enough data
Dimensionsno datano data
Weightno datano data
CompatibilityNot enough data
Operating Systemwindows, macoswindows, macos

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

Who each one is for

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.

Our pick
Best ValueMost Connectivity

At $149.99, the Focusrite Scarlett 18i20 3rd Gen is the most affordable option — 25% less than the priciest pick. It leads in preamp gain (60dB) and ADAT expansion (Yes). Offers the most spec advantages per dollar in this comparison.

  • + Better preamp gain (60dB vs 58dB)
  • + Better ADAT expansion (Yes vs No)
  • + More TRS outputs (10 vs 4)
  • × Weaker loopback (No vs Yes)
  • × Weaker bus powered (No vs Yes)

Also worth knowing

  • ✓ You want the stronger preamp gain (60dB)
  • ✓ You want the stronger ADAT expansion (Yes)
  • ✓ Budget is your top priority — $49.01 less than the priciest option
  • ✓ You want room for eight more inputs later, without replacing the box

Look elsewhere if

  • × You need the best loopback available
  • × You need the best bus powered available

Best for value-focused buyers, complex setup builders.

The alternative
Easiest Setup

At $199.00, the EVO 4x4 USB-C Audio Interface is the most expensive option and doesn't clearly outspec the cheaper alternatives. It leads in loopback (Yes) and bus powered (Yes). Fewer ports and inputs — plug in and go.

  • + Better loopback (Yes vs No)
  • + Better bus powered (Yes vs No)
  • × Weaker preamp gain (58dB vs 60dB)
  • × Weaker ADAT expansion (No vs Yes)
  • × Fewer TRS outputs (4 vs 10)

Also worth knowing

  • ✓ You want the stronger loopback (Yes)
  • ✓ You want the stronger bus powered (Yes)
  • ✓ You want to capture computer audio without a second interface
  • ✓ You want it to run off USB alone, with no power adapter to carry

Look elsewhere if

  • × You need the best preamp gain available
  • × You need the best ADAT expansion available

Best for beginners.

Frequently Asked Questions

What is the main difference between Focusrite Scarlett 18i20 3rd Gen and EVO 4x4 USB-C Audio Interface?

The clearest difference is loopback, which the EVO 4x4 USB-C Audio Interface has and the Focusrite Scarlett 18i20 3rd Gen does not. Across the catalog's specification sheet the two differ on 5 specs. They match on 8 specs, including connection type, operating system and sample rate. Two audio interfaces from Focusrite and Evo, each taking a different approach to audio quality and I/O flexibility.

Which is better for streaming, Focusrite Scarlett 18i20 3rd Gen or EVO 4x4 USB-C Audio Interface?

Get the Focusrite Scarlett 18i20 3rd Gen, narrowly. The Focusrite Scarlett 18i20 3rd Gen wins Connectivity — but only just, and the rest of the chart is close. It is also the cheaper of the two, by $49.01.

What do the Focusrite Scarlett 18i20 3rd Gen and EVO 4x4 USB-C Audio Interface have in common?

Both share 8 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.

Is the EVO 4x4 USB-C Audio Interface worth the extra $49 over the Focusrite Scarlett 18i20 3rd Gen?

The EVO 4x4 USB-C Audio Interface costs $199.00 against $149.99, a difference of $49. The premium buys loopback (Yes) and bus powered (Yes). Whether that is worth it depends on which of those you would actually use.

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