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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-21 · 8 min read · Independent comparison
• Focusrite Scarlett Solo 4th — biggest strength: a 2-in USB audio interface with a mic preamp, a Hi-Z instrument input, 24-bit/192kHz conversion, 120dB dynamic range and Air mode, plus a full software bundle for recording, mixing and mastering.
• Focusrite Scarlett Solo 4th — biggest trade-off: it needs a computer, iPad or Mac/Windows host to do anything at all. On its own it makes no sound — it's an interface, not a standalone tone device.
• FUNFANG Bass Preamp Pedal — biggest strength: a dedicated bass preamp/DI with 4-band EQ, Bright/Deep switches, Pre/Post DI routing, ground lift, and a headphone out with Aux In for silent practice.
• FUNFANG Bass Preamp Pedal — biggest trade-off: it's built around bass tone shaping and DI duties, not around capturing a microphone or running a full multitrack recording session. It also needs its own 18V center-negative supply.
• Who each pick is for: the Scarlett Solo is for singer-songwriters, guitarists and producers recording into a computer; the FUNFANG is for bassists who want their sound dialled in on stage, in the studio or through headphones.
The Scarlett Solo 4th Gen is, in plain terms, the front door to recording. You get one XLR mic input and one Hi-Z instrument input, so you can plug in a microphone and a guitar at the same time and record both. The converters run at up to 24-bit/192kHz and share DNA with Focusrite's flagship RedNet interfaces, and the spec sheet quotes a 120dB dynamic range — that's the headroom figure that decides how much detail survives between the quietest and loudest parts of a take. In practice, that means vocals and guitar parts that don't sound squashed or brittle.
Then there's Air mode, which is the feature most people end up caring about. It lifts vocals and guitars forward in the mix and adds harmonic character, which is handy when you're tracking through a modest mic and want the result to sit up front without heavy plugin work. The Dynamic Gain Halos give you a visual cue for setting levels, which saves a lot of trial and error if you're new to gain staging. A custom headphone amp is included too, and it's designed to drive high-impedance headphones properly — relevant if you mix on headphones rather than monitors.
Who should buy it: anyone whose music ends up inside a computer. Songwriters, guitarists, vocalists, podcasters, beat makers — if your workflow is "record into a DAW," this is the box that gets you there. The software bundle backs that up: Pro Tools Intro+, Ableton Live Lite, Cubase LE, and the Hitmaker Expansion suite covering vocals, guitar tones, drums, keys, synths and mastering tools. You're not buying a bare interface; you're buying a starting studio.
Who should skip it: players who don't want a computer in the chain. If your goal is to shape your bass tone on a stage or practise silently without opening a laptop, the Solo adds a step you don't need. It's also mono-focused on the input side — one mic, one instrument — so a full band tracking session is not what this unit is for. Compatibility is broad (Mac, Windows and iPad, USB connectivity), and it ships with a USB A-C cable, but it's still a host-dependent device.
The FUNFANG Bass Preamp Pedal is a different animal entirely: a bass preamp and DI in pedal form, designed to sit on a board and shape your tone before anything else touches it. The EQ section is the headline — four bands with real numbers behind them: 40Hz bass at ±17dB, 300Hz low mid at ±15dB, 800Hz high mid at ±14dB and 4kHz treble at ±14dB. That's a lot of range in the low end specifically, which is where bass tone lives. If your bass sounds thin in the mix, that 40Hz band is your friend.
Then there are the Bright and Deep toggles. Bright pushes high-frequency brilliance above roughly 3kHz; Deep adds depth below about 250Hz. You can run either one alone or both together, which covers a useful spread — from punchy and articulate to fat and warm — without touching the EQ knobs. For a bassist, that's a quick way to switch between a song that needs definition and one that needs weight.
The routing side is where this pedal earns its place in a studio too. Pre/Post DI channel selection lets you send either the raw bass signal or the processed, EQ'd signal down the DI line — genuinely useful when an engineer wants a clean safety track alongside your shaped tone. There's a ground lift switch for killing hum in recording setups, which is the kind of problem that ruins a take if you can't solve it. Power comes from an 18V center-negative supply, and the higher internal voltage is the reason the design can claim lower noise and a clean DI output.
And then the practice side: a 1/8" Aux In plus a headphone output with its own mix control. You can plug in a backing track, put on headphones, and balance the dry bass against the external audio. No amp, no room noise, no complaints from anyone. It runs on 110V amperage-rated power at 1 milliamp draw, carries a 90-day manufacturer warranty, and comes in a single "Basic" style.
Side-by-Side: Which Should You Choose?
• Best for recording vocals and guitar into a computer → Focusrite Scarlett Solo 4th. One XLR mic input plus one Hi-Z instrument input, with 24-bit/192kHz conversion.
• Best for bass tone shaping → FUNFANG Bass Preamp Pedal. Four bands of EQ with wide boost/cut ranges plus Bright and Deep switches.
• Best for silent practice → FUNFANG Bass Preamp Pedal. Headphone out with Aux In and a dedicated mix control beats any interface workflow here.
• Best for studio-grade capture headroom → Focusrite Scarlett Solo 4th. The 120dB dynamic range and Air mode are aimed squarely at recording quality.
• Best for clean DI work on a session → FUNFANG Bass Preamp Pedal. Pre/Post DI selection and a ground lift switch are purpose-built for that job.
• Best for software you can start using immediately → Focusrite Scarlett Solo 4th. Pro Tools Intro+, Ableton Live Lite, Cubase LE and the Hitmaker Expansion bundle.
• Best for pedalboard integration → FUNFANG Bass Preamp Pedal. It's a stompbox with a toggle-based workflow, not a desktop unit.
• Best for a laptop-based songwriter who also plays bass → Focusrite Scarlett Solo 4th, with the FUNFANG as a later addition in front of it.
If I had to pick one, I'd buy the Focusrite Scarlett Solo 4th — because it's the piece that actually lets you finish and release music, and almost everything else can be added around it later. The FUNFANG is the better specialist: if you're a bassist whose priority is tone, DI routing and headphone practice, it does jobs the Scarlett simply wasn't designed for, and it does them well on paper. But as a first serious purchase, the interface opens more doors. In my opinion, start with the Scarlett, then add the FUNFANG when your bass rig becomes the priority. Check the current price on Amazon for both before you commit, since that's the one thing a spec sheet can't tell you.
They do different jobs, so "better" depends on the task. The Scarlett is a USB audio interface for recording mic and instrument into a computer; the FUNFANG is a bass preamp and DI. For recording, the Scarlett wins. For bass tone and silent practice, the FUNFANG wins.
Not really. It gives you a DI output, EQ, ground lift and headphone monitoring with Aux In, which covers a lot of practice and stage needs. But it doesn't provide the mic preamp, USB connectivity or multitrack recording workflow the Scarlett Solo is built around.
Yes. It's a USB interface that works with Mac, Windows and iPad, and it needs a host device to record. The FUNFANG, by contrast, runs standalone from its own 18V center-negative power supply.
For shaping bass tone, the FUNFANG is the more targeted tool — 4-band EQ with a ±17dB bass band, Bright/Deep switches and Pre/Post DI routing. The Scarlett can record a bass cleanly through its Hi-Z input, but it won't sculpt your tone the way a dedicated preamp does.
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