Focusrite Scarlett 4i4 4th Gen

by Nathan | Sep 16, 2025 | Product Advice

Overview

The Scarlett 4i4 4th Generation is a versatile 4-in / 4-out USB-audio interface aimed at home studios, project producers, and multi-instrument setups. With two high-quality mic preamps, line/instrument inputs, MIDI I/O, and a solid software bundle, it’s designed to be both powerful and flexible.

Pros

  1. High quality mic preamps & ultra-low noise
    The two Scarlett remote-controlled preamps have very low noise and a large gain range (69 dB), which lets you get clean, detailed recordings even with less sensitive mics.  
  2. ‘Air’ modes & sonic character
    The unit includes two “Air” modes: Presence mode (boosts high end to brighten vocals, acoustic guitars, overheads) and Harmonic Drive mode (adds mid-range harmonics, giving more character and presence). These are nice for shaping tone without needing external gear or extra plugins.  
  3. Good I/O flexibility
    • Two instrument/line/mic preamps.
    • Additional line inputs and line outputs.
    • MIDI in and out, which is helpful for integrating synths or older gear.
    • Independent mixes for headphones & line outputs.  
  4. Strong specifications
    It supports up to 24-bit / 192 kHz resolution. High dynamic range (~120 dB), which is solid. The latency and audio quality are very competitive in its price range.  
  5. Well-rounded software package
    You get a software bundle: Ableton Live Lite, Pro Tools Intro+, six months of FL Studio Producer Edition, and the Hitmaker Expansion bundle. This makes it easier to start producing right out of the box.  
  6. Build, usability & support
    It’s USB-C, bus-powered, compact, with good physical controls. Also Focusrite offers a three-year warranty and good customer support.  

Cons / Trade-offs

  1. Noisy floor in certain situations
    Although the preamps are very good, if you’re pushing very quiet signals with extreme gain, you might start hearing noise. This is fairly typical at this price point, but not completely absent. (Just something to watch in very sensitive mic recording.)
  2. Bus-powered limitations
    While USB-bus power is convenient, heavy workloads (many channels, high gain, many effects) may push its limits. Also, the USB-2.0 protocol used may impose some constraints in extremely demanding setups.  
  3. Number of outputs
    It has four line outputs plus headphone but if you want many separate monitor mixes or want to route to many external processors simultaneously, you might find it limiting. For most small to medium setups though, it’s quite enough.
  4. Price vs simpler interfaces
    For users who only need 2 inputs, or are just doing podcasting or voice overs, a simpler (and cheaper) 2-in/2-out interface might give more bang-for-buck. The extra I/O and features here are useful, but only if you actually use them.

Who It’s Best For

  • Musicians or producers who use multiple sources: e.g. vocals, guitar, synths, maybe drum overheads.
  • People who want that “console-like” character (with the Air modes) without needing a large hardware mixing desk.
  • Home studio owners who want room to grow, more inputs/outputs and effects without having to replace the interface soon.
  • Those who want a solid software package included so they can start recording & producing right away.

Summary

The Focusrite Scarlett 4i4 (4th Gen) is a well-designed, feature-rich audio interface that balances quality, flexibility, and ease of use. It’s not the cheapest in some of its aspects if you don’t need all the extra I/O, but if you do need them, or anticipate growing, this is a smart, reliable choice. You get excellent sound, decent features, and strong support.

Verdict: A strong pick for serious home producers and musicians who want more than the bare basics, but who still need something compact, reliable, and user-friendly.