SSL 2+ USB Audio Interface vs Focusrite Scarlett 4i4 4th Gen

SSL 2+ USB Audio Interface vs Focusrite Scarlett 4i4 4th Gen compared — specs, features, and which one to buy for your setup. See the full breakdown on CreatorConfig.

SSL 2+ USB Audio Interface
SSL
SSL 2+ USB Audio Interface
$199
Focusrite Scarlett 4i4 4th Gen
Focusrite
Focusrite Scarlett 4i4 4th Gen
$199.99

The Ruling

SSL 2+ USB Audio Interface or Focusrite Scarlett 4i4 4th Gen? Get the Focusrite Scarlett 4i4 4th Gen, narrowly.

The Focusrite Scarlett 4i4 4th Gen wins Preamps and Creator Features — but only just, and the rest of the chart is close. It is the pricier of the two at $199.99, so the SSL 2+ USB Audio Interface stays the pick if $0.99 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.

CategorySSL 2+ USB Audio InterfaceFocusrite Scarlett 4i4 4th Gen
Audio Resolution10/1010/10
Preamps9.1/1010/10
Mic Inputs10/1010/10
Monitoring10/107.5/10
Creator Features5/1010/10
Connectivity10/1010/10

The Split

What each one wins

SSL 2+ USB Audio Interface

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

On paper the SSL 2+ USB Audio Interface takes headphone outputs (2, +1). It gives up loopback and preamp gain to the Focusrite Scarlett 4i4 4th Gen. The two are priced the same, so price does not decide it.

Leads on

  • Headphone Outputs +1
    2
    1

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

Focusrite Scarlett 4i4 4th Gen

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

On paper the Focusrite Scarlett 4i4 4th Gen takes loopback (Yes), preamp gain (69dB, +7dB) and dynamic range (120dB, +9.5dB). It gives up headphone outputs to the SSL 2+ USB Audio Interface. The two are priced the same, so price does not decide it.

Leads on

  • Loopback
    Yes
    No

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

  • Preamp Gain +7dB
    69dB
    62dB

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

  • Dynamic Range +9.5dB
    120dB
    110.5dB

    Wider converter dynamic range means less noise between the quietest and loudest parts of a take.

Where they’re identical

These 11 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
  • Direct Monitoring Yes
  • ADAT Expansion No
  • MIDI I/O In/Out
  • Bus Powered Yes
  • TRS Outputs 4

The Record

19 specs, grouped by area

Full specification comparison of SSL 2+ USB Audio Interface and Focusrite Scarlett 4i4 4th Gen, grouped by area.
Specification
SSL
SSL 2+ USB Audio Interface
Focusrite
Focusrite Scarlett 4i4 4th Gen
Audio ResolutionEven
Sample Rate192kHz192kHz
Max Sample Rateno data192kHz
Bit Depth24-bit24-bit
PreampsFocusrite Scarlett 4i4 4th Gen
Preamp Gain62dB✓ 69dB
Dynamic Range110.5dB✓ 120dB
Mic InputsEven
XLR Inputs22
MonitoringSSL 2+ USB Audio Interface
Headphone Outputs✓ 21
Direct MonitoringYesYes
Creator FeaturesFocusrite Scarlett 4i4 4th Gen
LoopbackNo✓ Yes
ADAT ExpansionNoNo
MIDI I/OIn/OutIn/Out
Bundled Softwareno dataHitmaker Expansion, Ableton Live Lite, Pro Tools Intro+, Cubase LE
ConnectivityEven
TRS Outputs44
Connection Typeusb-c, xlr, trsusb-c, xlr, trs
PowerEven
Bus PoweredYesYes
Phantom PowerYesYes
BuildNot enough data
Dimensionsno data180 x 130 x 60 mm
Weightno data0.798 kg
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 4i4 4th 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 Pick

At $199.00, the SSL 2+ USB Audio Interface is the most affordable option in this comparison. It leads in headphone outputs (2). Covers the essentials without stretching your budget.

  • + More headphone outputs (2 vs 1)
  • × Weaker dynamic range (110.5dB vs 120dB)
  • × Weaker preamp gain (62dB vs 69dB)
  • × Weaker loopback (No vs Yes)

Also worth knowing

  • ✓ You want the stronger headphone outputs (2)
  • ✓ Budget is your top priority — $0.99 less than the priciest option

Look elsewhere if

  • × You need the best dynamic range available
  • × You need the best preamp gain available

Best for budget-conscious creators.

Our pick
Best ValuePremium Pick

The Focusrite Scarlett 4i4 4th Gen is the priciest at $199.99, but leads on specs where it counts. It leads in dynamic range (120dB) and preamp gain (69dB). Offers the most spec advantages per dollar in this comparison.

  • + Better dynamic range (120dB vs 110.5dB)
  • + Better preamp gain (69dB vs 62dB)
  • + Better loopback (Yes vs No)
  • × Fewer headphone outputs (1 vs 2)

Also worth knowing

  • ✓ You want the stronger dynamic range (120dB)
  • ✓ You want the stronger preamp gain (69dB)
  • ✓ You want to capture computer audio without a second interface

Look elsewhere if

  • × You need the best headphone outputs available

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

Frequently Asked Questions

What is the main difference between SSL 2+ USB Audio Interface and Focusrite Scarlett 4i4 4th Gen?

The clearest difference is loopback, which the Focusrite Scarlett 4i4 4th 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 11 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.

Which is better for streaming, SSL 2+ USB Audio Interface or Focusrite Scarlett 4i4 4th Gen?

Get the Focusrite Scarlett 4i4 4th Gen, narrowly. The Focusrite Scarlett 4i4 4th Gen wins Preamps and Creator Features — but only just, and the rest of the chart is close. It is the pricier of the two at $199.99, so the SSL 2+ USB Audio Interface stays the pick if $0.99 matters more than those specs.

What do the SSL 2+ USB Audio Interface and Focusrite Scarlett 4i4 4th Gen have in common?

Both share 11 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.

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