Best Audio Interfaces · head-to-head

Volt 2 USB Audio Interface vs SSL 2+ MKII

A sourced, side-by-side comparison. Volt 2 USB Audio Interface is cheaper at $249. Every spec and price links to its source.

Which is better: the Volt 2 USB Audio Interface or SSL 2+ MKII?

On the specs we track, they're closely matched. The Volt 2 USB Audio Interface is the cheaper at $249.

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Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec Volt 2 USB Audio Interface SSL 2+ MKII
US price $249 $299.99
BrandUniversal AudioSolid State Logic
Released2021-112024-10
Inputs analog 2 2
Outputs analog 2 4
Max resolution bit (kHz) 24-bit / 192 kHz 32-bit / 192 kHz
Mic preamps 2 2
Connection usb_c usb_c
Midi io Yes Yes
Bus powered Yes Yes
Release year 2021 2024

Sources — Volt 2 USB Audio Interface: uaudio.com (verified 2026-06-19). SSL 2+ MKII: solidstatelogic.com (verified 2026-06-19).

What's the difference between the Volt 2 USB Audio Interface and SSL 2+ MKII?

Where the two actually differ on the specs we track (2 of 7). Matching specs are omitted.

  • Outputs analog: Volt 2 USB Audio Interface 2 vs SSL 2+ MKII 4
  • Max resolution bit (kHz): Volt 2 USB Audio Interface 24-bit / 192 kHz vs SSL 2+ MKII 32-bit / 192 kHz

What reviewers say

Sourced tester consensus for each — the "what people who used it think" layer, not just specs.

Volt 2 USB Audio Interface

Only one whitelisted tester, SoundGuys, covers the Volt 2, and only as a pick inside a buying guide rather than a dedicated lab review, so there are no measured numbers. It endorses the Volt 2 as a capable sub-$200 Focusrite Scarlett alternative with 610-style preamps. No cross-source corroboration exists on the whitelist. (1 sourced review.)

Praised: Capable, well-priced sub-$200 alternative to the dominant Focusrite Scarlett; 610-style vintage preamp emulation adds switchable warmth/color; iPad compatibility, USB-C, and MIDI connectivity with 24-bit/192kHz AD/DA.

SSL 2+ MKII

Two whitelisted hands-on reviews (Sound on Sound, MusicRadar) both recommend the SSL 2+ MKII, praising its intuitive physical-controls workflow (no companion app needed) and clean, crisp preamps. Neither published its own lab measurements, so the dynamic-range gains they mention are SSL's own specs, not independently verified. MusicRadar's main gripe is the plasticky, lightweight feel versus all-metal rivals. (2 sourced reviews.)

Praised: Intuitive physical-controls workflow, everything in reach with no control-panel/companion app required; Clean, crisp, high-quality preamps — among the cleanest around; Worthwhile MkII refresh: front instrument jacks, status LEDs, extra balanced outputs.

Flagged: Plasticky, lightweight chassis and buttons lacking tactile click versus all-metal rivals; Probably overkill for a solo musician; 32-bit/192kHz spec offers little practical recording benefit over 24-bit.

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