Focusrite Scarlett Solo (4th Gen) vs SSL 2+ USB Audio Interface

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

Focusrite Scarlett Solo (4th Gen)
Focusrite
Focusrite Scarlett Solo (4th Gen)
$139.99
SSL 2+ USB Audio Interface
SSL
SSL 2+ USB Audio Interface
$199

The Ruling

Focusrite Scarlett Solo (4th Gen) or SSL 2+ USB Audio Interface? Get the SSL 2+ USB Audio Interface.

The SSL 2+ USB Audio Interface wins Mic Inputs, Monitoring and Connectivity. It is the pricier of the two at $199, so the Focusrite Scarlett Solo (4th Gen) stays the pick if $59.01 matters more than those specs.

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Unless…

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 Solo (4th Gen)SSL 2+ USB Audio Interface
Audio Resolution10/1010/10
Preamps9.6/109.6/10
Mic Inputs5/1010/10
Monitoring7.5/1010/10
Creator Features10/105/10
Connectivity5/1010/10

The Split

What each one wins

Focusrite Scarlett Solo (4th Gen)

Compact 1-mic USB-C interface for solo creators who need clean voice and instrument input.

On paper the Focusrite Scarlett Solo (4th Gen) takes loopback (Yes) and dynamic range (120dB, +9.5dB). It gives up XLR inputs and headphone outputs to the SSL 2+ USB Audio Interface. It is the cheaper of the two, by $59.01.

Leads on

  • Loopback
    Yes
    No

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

  • Dynamic Range +9.5dB
    120dB
    110.5dB

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

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 XLR inputs (2, +1), headphone outputs (2, +1), TRS outputs (4, +2) and preamp gain (62dB, +5dB). It gives up loopback and dynamic range to the Focusrite Scarlett Solo (4th Gen). That costs $59.01 more than the Focusrite Scarlett Solo (4th Gen).

Leads on

  • 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.

  • TRS Outputs +2
    4
    2

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

  • Preamp Gain +5dB
    62dB
    57dB

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

Where they’re identical

These 7 specs are the same on both of them, so none of it is part of the decision.

  • Connection Type usb-c, xlr, trs
  • Sample Rate 192kHz
  • Bit Depth 24-bit
  • Phantom Power Yes
  • Direct Monitoring Yes
  • ADAT Expansion No
  • Bus Powered Yes

The Record

19 specs, grouped by area

Full specification comparison of Focusrite Scarlett Solo (4th Gen) and SSL 2+ USB Audio Interface, grouped by area.
Specification
Focusrite
Focusrite Scarlett Solo (4th Gen)
SSL
SSL 2+ USB Audio Interface
Audio ResolutionEven
Sample Rate192kHz192kHz
Max Sample Rate192kHzno data
Bit Depth24-bit24-bit
PreampsEven
Preamp Gain57dB✓ 62dB
Dynamic Range✓ 120dB110.5dB
Mic InputsSSL 2+ USB Audio Interface
XLR Inputs1✓ 2
MonitoringSSL 2+ USB Audio Interface
Headphone Outputs1✓ 2
Direct MonitoringYesYes
Creator FeaturesFocusrite Scarlett Solo (4th Gen)
Loopback✓ YesNo
ADAT ExpansionNoNo
MIDI I/ONoneIn/Out
Bundled SoftwareHitmaker Expansion, Ableton Live Lite, Pro Tools Intro+, Cubase LEno data
ConnectivitySSL 2+ USB Audio Interface
TRS Outputs2✓ 4
Connection Typeusb-c, xlr, trsusb-c, xlr, trs
PowerEven
Bus PoweredYesYes
Phantom PowerYesYes
BuildNot enough data
Dimensions143 x 96 x 46.5 mmno data
Weight0.382 kgno 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 SSL 2+ USB Audio Interface 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 $139.99, the Focusrite Scarlett Solo (4th Gen) is the most affordable option — 30% less than the priciest pick. It leads in dynamic range (120dB) and loopback (Yes). Covers the essentials without stretching your budget.

  • + Better dynamic range (120dB vs 110.5dB)
  • + Better loopback (Yes vs No)
  • × Weaker preamp gain (57dB vs 62dB)
  • × Fewer XLR inputs (1 vs 2)
  • × Fewer headphone outputs (1 vs 2)

Also worth knowing

  • ✓ You want the stronger dynamic range (120dB)
  • ✓ You want the stronger loopback (Yes)
  • ✓ Budget is your top priority — $59.01 less than the priciest option
  • ✓ You need gear you can easily take on the go

Look elsewhere if

  • × You need the best preamp gain available
  • × 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 SSL 2+ USB Audio Interface is the priciest at $199.00, but leads on specs where it counts. It leads in preamp gain (62dB) and XLR inputs (2). Offers the most spec advantages per dollar in this comparison.

  • + Better preamp gain (62dB vs 57dB)
  • + More XLR inputs (2 vs 1)
  • + More headphone outputs (2 vs 1)
  • + More TRS outputs (4 vs 2)
  • × Weaker dynamic range (110.5dB vs 120dB)
  • × Weaker loopback (No vs Yes)

Also worth knowing

  • ✓ You want the stronger preamp gain (62dB)
  • ✓ You need 2 XLR inputs for recording multiple sources
  • ✓ You have MIDI gear to plug in without a separate adapter

Look elsewhere if

  • × You need the best dynamic range available
  • × You need the best loopback available

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

Frequently Asked Questions

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

The clearest difference is loopback, which the Focusrite Scarlett Solo (4th Gen) has and the SSL 2+ USB Audio Interface does not. Across the catalog's specification sheet the two differ on 6 specs. They match on 7 specs, including connection type, sample rate and bit depth. Two audio interfaces from Focusrite and SSL, each taking a different approach to audio quality and I/O flexibility.

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

Get the SSL 2+ USB Audio Interface. The SSL 2+ USB Audio Interface wins Mic Inputs, Monitoring and Connectivity. It is the pricier of the two at $199, so the Focusrite Scarlett Solo (4th Gen) stays the pick if $59.01 matters more than those specs.

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

Both share 7 specifications in the catalog, including connection type (usb-c, xlr, trs), sample rate (192kHz), bit depth (24-bit) and phantom power (Yes), among others. None of those is a reason to pick one over the other.

Is the SSL 2+ USB Audio Interface worth the extra $59 over the Focusrite Scarlett Solo (4th Gen)?

The SSL 2+ USB Audio Interface costs $199.00 against $139.99, a difference of $59. The premium buys XLR inputs (2), headphone outputs (2) and TRS outputs (4). Whether that is worth it depends on which of those you would actually use.

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