Audio-Technica AT-UMX3 Desktop Mixer vs Focusrite Scarlett 18i20 3rd Gen

Get the Focusrite Scarlett 18i20 3rd Gen. The Focusrite Scarlett 18i20 3rd Gen wins Audio Resolution, Mic Inputs and Monitoring. It is the pricier of the...

Audio-Technica AT-UMX3 Desktop Mixer
Audio-Technica
Audio-Technica AT-UMX3 Desktop Mixer
$159
Focusrite Scarlett 18i20 3rd Gen
Focusrite
Focusrite Scarlett 18i20 3rd Gen
$599.99

The Ruling

Audio-Technica AT-UMX3 Desktop Mixer or Focusrite Scarlett 18i20 3rd Gen? Get the Focusrite Scarlett 18i20 3rd Gen.

The Focusrite Scarlett 18i20 3rd Gen wins Audio Resolution, Mic Inputs and Monitoring. It is the pricier of the two at $599.99, so the Audio-Technica AT-UMX3 Desktop Mixer stays the pick if $440.99 matters more than those specs.

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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.

CategoryAudio-Technica AT-UMX3 Desktop MixerFocusrite Scarlett 18i20 3rd Gen
Audio Resolution7.5/1010/10
Mic Inputs5/1010/10
Monitoring7.5/1010/10
Creator Features5/105/10
Power10/100/10
Value10/102.7/10

The Split

What each one wins

Audio-Technica AT-UMX3 Desktop Mixer

Compact desktop streaming mixer/interface with tactile controls for mic and monitor balancing.

On paper the Audio-Technica AT-UMX3 Desktop Mixer takes loopback (Yes) and bus powered (Yes). It gives up ADAT expansion and sample rate to the Focusrite Scarlett 18i20 3rd Gen. It is the cheaper of the two, by $440.99.

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.

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), sample rate (192kHz, +144kHz), XLR inputs (2, +1) and headphone outputs (2, +1). It gives up loopback and bus powered to the Audio-Technica AT-UMX3 Desktop Mixer. That costs $440.99 more than the Audio-Technica AT-UMX3 Desktop Mixer.

Leads on

  • ADAT Expansion
    Yes
    No

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

  • Sample Rate +144kHz
    192kHz
    48kHz

    Higher sample rates capture more audio detail — important for professional recording and mixing.

  • XLR Inputs +1
    2
    1

    More XLR inputs let you record multiple microphones simultaneously.

  • Headphone Outputs +1
    2
    1

    A second headphone output lets a guest monitor without a splitter.

Where they’re identical

These 5 specs are the same on both of them, so none of it is part of the decision.

  • Connection Type usb-c, xlr, trs
  • Bit Depth 24-bit
  • Max Sample Rate 192kHz
  • Phantom Power Yes
  • Direct Monitoring Yes

The Record

19 specs, grouped by area

Full specification comparison of Audio-Technica AT-UMX3 Desktop Mixer and Focusrite Scarlett 18i20 3rd Gen, grouped by area.
Specification
Audio-Technica
Audio-Technica AT-UMX3 Desktop Mixer
Focusrite
Focusrite Scarlett 18i20 3rd Gen
Audio ResolutionFocusrite Scarlett 18i20 3rd Gen
Sample Rate48kHz✓ 192kHz
Max Sample Rate192kHz192kHz
Bit Depth24-bit24-bit
PreampsNot enough data
Preamp Gainno data60dB
Dynamic Rangeno datano data
Mic InputsFocusrite Scarlett 18i20 3rd Gen
XLR Inputs1✓ 2
MonitoringFocusrite Scarlett 18i20 3rd Gen
Headphone Outputs1✓ 2
Direct MonitoringYesYes
Creator FeaturesEven
Loopback✓ YesNo
ADAT ExpansionNo✓ Yes
MIDI I/ONoneIn/Out
Bundled Softwareno datano data
ConnectivityNot enough data
TRS Outputsno data10
Connection Typeusb-c, xlr, trsusb-c, xlr, trs
PowerAudio-Technica AT-UMX3 Desktop Mixer
Bus Powered✓ YesNo
Phantom PowerYesYes
BuildNot enough data
Dimensionsno datano data
Weightno datano data
CompatibilityNot enough data
Operating Systemno datawindows, 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.

The alternative
Budget PickPortability Pick

At $159.00, the Audio-Technica AT-UMX3 Desktop Mixer is the most affordable option — 73% less than the priciest pick. It leads in loopback (Yes) and bus powered (Yes). Covers the essentials without stretching your budget.

  • + Better loopback (Yes vs No)
  • + Better bus powered (Yes vs No)
  • × Lower sample rate (48kHz vs 192kHz)
  • × Fewer XLR inputs (1 vs 2)
  • × Fewer headphone outputs (1 vs 2)

Also worth knowing

  • ✓ You want the stronger loopback (Yes)
  • ✓ You want the stronger bus powered (Yes)
  • ✓ Budget is your top priority — $440.99 less than the priciest option
  • ✓ You need gear you can easily take on the go

Look elsewhere if

  • × You need the highest sample rate available (192kHz)
  • × You plan to record multiple microphones simultaneously

Best for budget-conscious creators, mobile creators, space-constrained setups.

Our pick
Best ValuePremium PickMost ConnectivityBest for Multi-mic

The Focusrite Scarlett 18i20 3rd Gen is the priciest at $599.99, but leads on specs where it counts. It leads in sample rate (192kHz) and XLR inputs (2). Offers the most spec advantages per dollar in this comparison.

  • + Higher sample rate (192kHz vs 48kHz)
  • + More XLR inputs (2 vs 1)
  • + More headphone outputs (2 vs 1)
  • + Better ADAT expansion (Yes vs No)
  • × Weaker loopback (No vs Yes)
  • × Weaker bus powered (No vs Yes)

Also worth knowing

  • ✓ You want 192kHz sample rate for higher-resolution audio
  • ✓ You need 2 XLR inputs for recording multiple sources
  • ✓ You want room for eight more inputs later, without replacing the box
  • ✓ You have MIDI gear to plug in without a separate adapter

Look elsewhere if

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

Best for value-focused buyers, professionals who want the best, complex setup builders.

Frequently Asked Questions

What is the main difference between Audio-Technica AT-UMX3 Desktop Mixer and Focusrite Scarlett 18i20 3rd Gen?

The clearest difference is loopback, which the Audio-Technica AT-UMX3 Desktop Mixer 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 5 specs, including connection type, bit depth and max sample rate. Two audio interfaces from Audio-Technica and Focusrite, each taking a different approach to audio quality and I/O flexibility.

Which is better for streaming, Audio-Technica AT-UMX3 Desktop Mixer or Focusrite Scarlett 18i20 3rd Gen?

Get the Focusrite Scarlett 18i20 3rd Gen. The Focusrite Scarlett 18i20 3rd Gen wins Audio Resolution, Mic Inputs and Monitoring. It is the pricier of the two at $599.99, so the Audio-Technica AT-UMX3 Desktop Mixer stays the pick if $440.99 matters more than those specs.

What do the Audio-Technica AT-UMX3 Desktop Mixer and Focusrite Scarlett 18i20 3rd Gen have in common?

Both share 5 specifications in the catalog, including connection type (usb-c, xlr, trs), bit depth (24-bit), max sample rate (192kHz) and phantom power (Yes), among others. None of those is a reason to pick one over the other.

Is the Focusrite Scarlett 18i20 3rd Gen worth the extra $441 over the Audio-Technica AT-UMX3 Desktop Mixer?

The Focusrite Scarlett 18i20 3rd Gen costs $599.99 against $159.00, a difference of $441. The premium buys ADAT expansion (Yes), sample rate (192kHz) and XLR inputs (2). Whether that is worth it depends on which of those you would actually use.

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