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.
The Ruling
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.
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 | Focusrite Scarlett Solo (4th Gen) | SSL 2+ USB Audio Interface |
|---|---|---|
| Audio Resolution | 10/10 | 10/10 |
| Preamps | 9.6/10 | 9.6/10 |
| Mic Inputs | 5/10 | 10/10 |
| Monitoring | 7.5/10 | 10/10 |
| Creator Features | 10/10 | 5/10 |
| Connectivity | 5/10 | 10/10 |
The Split
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 routes computer audio back into the stream without a second interface or cable.
Wider converter dynamic range means less noise between the quietest and loudest parts of a take.
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
More XLR inputs let you record multiple microphones simultaneously.
A second headphone output lets a guest monitor without a splitter.
More TRS outputs allow routing to studio monitors and outboard gear.
More gain drives quiet dynamic microphones like the SM7B without a separate booster.
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 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 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.
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.
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.
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.