AudioFu
Warwick Alien Deluxe Hybrid 4 LH… ↓ 33.4% $670Allen & Heath SQ5 ↓ 28.8% $2,908Warwick Alien Deluxe 5 NT LH ↓ 27.8% $726Allen & Heath SQ5 Case Bundle I ↓ 26.7% $3,165Casio AP-S200 BN ↓ 23.9% $961Allen & Heath SQ5, Case, DX168/X… ↓ 21.7% $5,179Dangerous Music 2 Bus+ ↓ 21.0% $4,027Orange PPC212-COB ↓ 20.6% $585Orange Micro Dark ↓ 20.2% $195Seymour Duncan SHR-1B Hot Rails… ↓ 19.3% $122Seymour Duncan SHR1N BLK ↓ 19.3% $122Seymour Duncan SL59-1N BLK ↓ 19.3% $122Seymour Duncan SL59-1B Bridge… ↓ 19.3% $122Seymour Duncan SL59-1B Creme ↓ 19.3% $122Seymour Duncan SL59-1N Creme ↓ 19.3% $122Seymour Duncan SL59-1B Parchment ↓ 19.3% $122

AudioFu Chart · October 2026

Best USB Audio Interfaces for Home Studio 2026

The top pick is Arturia MiniFuse 2 USB-C Audio Interface ($144). Arturia MiniFuse 1 USB-C Audio Interface gives you the most for the money at $97. RME Fireface UFX II USB Interface leads the high end. Ranked by the AudioFu Index from 206 models across 55 brands, prices checked every night.

Last updated: October 14, 2026

206models in this chart
55brands
$279median price
114price drops since Aug

Narrow the chart

All USB Audio Interfaces Showing: For Home Studio · clear
Price
Skill level
Use
Brand

Top 10

Full detail for the 10 highest AudioFu Index scores. Every other model is listed below.

  1. Arturia MiniFuse 2 USB-C Audio Interface

    MiniFuse 2 White · Arturia

    83 for sale on Reverb3 finishes at Thomann

    • Weight0.5 kg

    The MiniFuse 2 White is a seriously capable little interface. It’s a fantastic entry point for singer-songwriters, podcasters, or anyone needing a simple, reliable way to record. The included software is a huge bonus, making it a very attractive package for beginners or those needing a portable recording solution.

    Pros

    • Solid build quality for the price point; feels surprisingly robust.
    • Excellent software bundle provides immediate creative tools.
    • Clean, transparent preamps suitable for a wide range of vocal and instrument sources.

    Cons

    • Limited input count restricts recording larger ensembles or multiple sources simultaneously.
    • USB-A hub power output is restrictive for some MIDI controllers.
    84AudioFu
    Index
    • Demand100
    • Lineup86
    • Price72
    • Specs50
    • Maker82
    ↓ 7.2%since Aug 14 · lowest so far
    $156 · Aug 14$144 now
    $144€129 at Thomann · in stock
    Check price ↗

  2. IK Multimedia AXE I/O USB Audio Interface

    AXE I/O · IK Multimedia

    44 for sale on Reverb1 finish at Thomann

    • Size4"
    • Weight1.3 kg

    The AXE I/O is a solid choice for guitarists and bassists focused on direct recording and re-amping. The Z-Tone feature is genuinely useful for adding subtle character, and the discrete preamps provide a clean, professional sound. It's a well-rounded package for home recording and smaller studio setups.

    Pros

    • Z-Tone circuit adds unique harmonic character and tonal flexibility.
    • Discrete Class A preamps deliver clean gain with excellent headroom.
    • Front-panel amp output simplifies re-amping workflows significantly.

    Cons

    • USB 2.0 connection limits bandwidth compared to newer interfaces.
    • Limited expandability; lacks ADAT or other digital I/O options.
    81AudioFu
    Index
    • Demand86
    • Lineup43
    • Price99
    • Specs100
    • Maker79
    ↓ 16.3%since Aug 14
    $364 · Aug 14$304 now
    $304€272 at Thomann · in stock
    Check price ↗

  3. Focusrite Scarlett 18i20 4th Gen USB Audio Interface

    Scarlett 18i20 4th Gen · Focusrite

    54 for sale on Reverb1 finish at Thomann

    • Size19"
    • Weight3.304 kg

    The 18i20 4th Gen is a seriously capable interface for bands and project studios. It nails the balance between channel count, clean preamps, and a user-friendly software suite. If you’re tracking multiple sources simultaneously, this is a fantastic, premium-priced solution that won't leave you wanting for I/O.

    Pros

    • Excellent preamps deliver clean, detailed sound with Focusrite's signature warmth.
    • The comprehensive I/O count simplifies complex recording setups considerably.
    • Air mode subtly enhances vocals and instruments with pleasing harmonic richness.

    Cons

    • The USB 2.0 connection feels dated; USB 3.0 would offer more headroom.
    • The 19” rackmount format limits desktop use; requires rack space or adapter.
    81AudioFu
    Index
    • Demand90
    • Lineup43
    • Price73
    • Specs100
    • Maker100
    ↓ 7.7%since Aug 14
    $774 · Aug 14$715 now
    $715€639 at Thomann · in stock
    Check price ↗

  4. Arturia MiniFuse 1 USB-C Audio Interface

    MiniFuse 1 White · Arturia

    57 for sale on Reverb2 finishes at Thomann

    • Weight0.4 kg

    The MiniFuse 1 White is a surprisingly capable little interface. It’s perfect for singer-songwriters, podcasters, or anyone needing a simple, portable recording solution with a great software suite. The clean preamps and robust build make it a fantastic entry point into Arturia's ecosystem.

    Pros

    • Excellent value, packed with useful software bundles.
    • Compact and portable design; ideal for travel or small spaces.
    • Clean, transparent preamps suitable for a wide range of vocal and instrument sources.

    Cons

    • Limited I/O; only one XLR/TRS combo input restricts multi-mic recording.
    • USB bus-powered, so may struggle with power-hungry external devices.
    78AudioFu
    Index
    • Demand92
    • Lineup68
    • Price78
    • Specs50
    • Maker82
    ↓ 9.4%since Aug 14 · lowest so far
    $107 · Aug 14$97 now
    $97€87 at Thomann · in stock
    Check price ↗

  5. Arturia MiniFuse 4 USB-C Audio Interface

    MiniFuse 4 Black · Arturia

    61 for sale on Reverb2 finishes at Thomann

    • Weight0.57 kg

    The MiniFuse 4 Black is a solid, budget-friendly option for singer-songwriters, podcasters, and smaller home studios. It's incredibly portable and easy to use, offering a clean signal path and a handy USB hub. It’s a great starting point for those who need a simple, reliable interface without a lot of frills.

    Pros

    • Compact build quality feels surprisingly robust for its size.
    • Clean preamps deliver transparent sound for a wide range of sources.
    • Loopback functionality is genuinely useful for streaming and podcasting.

    Cons

    • Limited input count might restrict more complex recording setups.
    • Plastic enclosure feels less premium than some competing interfaces.
    78AudioFu
    Index
    • Demand93
    • Lineup68
    • Price76
    • Specs50
    • Maker82
    ↓ 8.5%since Aug 14 · lowest so far
    $223 · Aug 14$204 now
    $204€182 at Thomann · in stock
    Check price ↗

  6. RME Fireface 802 FS USB Audio Interface

    Fireface 802 FS AE · RME

    16 for sale on Reverb2 finishes at Thomann

    • Size19"
    • Weight2.8 kg

    The Fireface 802 FS AE is a powerhouse for serious recording and production. Its rock-solid drivers, pristine preamps, and TotalMix FX routing are a game-changer for engineers and musicians needing ultimate control and flexibility. This is perfect for professional studios or advanced home setups where pristine audio quality and complex routing are paramount.

    Pros

    • Rock-solid RME build quality; feels incredibly durable and professional.
    • Exceptional preamps deliver clean, low-noise performance across a wide range of sources.
    • TotalMix FX offers unparalleled routing flexibility and real-time processing capabilities.

    Cons

    • Premium-priced, a significant investment for smaller studios or hobbyists.
    • The 1U rack height might be restrictive in some setups, requiring careful planning.
    76AudioFu
    Index
    • Demand64
    • Lineup68
    • Price91
    • Specs100
    • Maker84
    ↓ 13.5%since Aug 14 · lowest so far
    $2,069 · Aug 14$1,789 now
    $1,789€1,599 at Thomann · in stock
    Check price ↗

  7. Focusrite Scarlett 16i16 4th Gen USB Audio Interface

    Scarlett 16i16 4th Gen · Focusrite

    63 for sale on Reverb1 finish at Thomann

    • Weight1.25 kg

    This Scarlett 16i16 4th Gen is a seriously capable interface for mid-sized studios or bands needing lots of ins and outs. The preamps are decent, and the routing options are fantastic for multi-mic'd drums or recording a full band. It's a solid workhorse that won’t break the bank, especially for those needing a reliable, flexible solution.

    Pros

    • Solid build quality with a robust metal chassis, feels very professional.
    • The 'Air' mode genuinely adds a pleasing, subtle high-end sparkle.
    • 18x18 routing flexibility handles complex recording setups easily.

    Cons

    • USB 2.0 connection limits bandwidth; USB-C is a nice touch, but speed is a constraint.
    • Limited gain on preamps might struggle with very low-output dynamic mics.
    75AudioFu
    Index
    • Demand94
    • Lineup43
    • Price77
    • Specs50
    • Maker100
    ↓ 8.9%since Aug 14
    $416 · Aug 14$379 now
    $379€339 at Thomann · in stock
    Check price ↗

  8. RME Fireface UFX II USB Interface

    Fireface UFX III · RME

    16 for sale on Reverb3 finishes at Thomann

    • Size19"
    • Weight2.8 kg

    The UFX III is a powerhouse interface for serious recording and mixing engineers. Its rock-solid stability, extensive I/O, and the TotalMix FX routing capabilities make it an absolute workhorse for complex projects. If you're running a professional studio or need unparalleled flexibility, this is a top-tier choice.

    Pros

    • AKM converters deliver exceptional clarity and dynamic range.
    • DURec eliminates dropouts during critical recording moments.
    • TotalMix FX provides unparalleled routing and mixing flexibility.

    Cons

    • The substantial weight makes rack mounting a necessity, not an option.
    • Premium-priced, representing a significant investment for smaller studios.
    75AudioFu
    Index
    • Demand64
    • Lineup86
    • Price59
    • Specs100
    • Maker84
    ↓ 3.0%since Aug 14 · lowest so far
    $2,684 · Aug 14$2,602 now
    $2,602€2,326 at Thomann · in stock
    Check price ↗

  9. Arturia AudioFuse 16Rig USB Audio Interface

    AudioFuse 16Rig · Arturia

    35 for sale on Reverb1 finish at Thomann

    • Size19"
    • Weight4.5 kg

    The AudioFuse 16Rig is a seriously capable interface for producers and engineers who need flexible routing and a ton of I/O. Its robust build and DSP mixer are a big draw, making it perfect for complex studio setups or live recording rigs where you need granular control over your signal flow. It's not a budget option, but the quality and features justify the investment.

    Pros

    • Excellent build quality; robust metal chassis feels exceptionally solid and durable.
    • Flexible routing capabilities via the DSP mixer offer significant workflow advantages.
    • The dedicated monitor controls with custom buttons simplify complex studio setups.

    Cons

    • Premium-priced, representing a significant investment for smaller studios.
    • USB-C connectivity limits compatibility with older computers.
    74AudioFu
    Index
    • Demand81
    • Lineup43
    • Price65
    • Specs100
    • Maker82
    ↓ 5.0%since Aug 14 · lowest so far
    $1,286 · Aug 14$1,221 now
    $1,221€1,091 at Thomann · in stock
    Check price ↗

  10. Yamaha URX44C USB-C Audio Interface

    URX44 WH · Yamaha

    9 for sale on Reverb4 finishes at Thomann

    • Size4.3"
    • Weight1.9 kg

    This interface mixes well with its built-in screen and two big touch knobs. It records directly to the box, which saves you from needing a computer for some tasks. Perfect for a home studio where you need simple controls and solid software.

    Pros

    • Four physical rotary knobs under the screen for easy mixing
    • Large Touch and Turn controller for precise sound shaping
    • Built-in DSP allows recording directly to the interface

    Cons

    • USB 2.0 port limits maximum data transfer speeds
    • Only one external power input available via USB-C
    73AudioFu
    Index
    • Demand52
    • Lineup100
    • Price50
    • Specs100
    • Maker92
    Stableno change since Aug 17
    Aug 17$525 now
    $525€469 at Thomann · in stock
    Check price ↗

All 206 USB audio interfaces

Same index, same nightly prices — compact. Colour options of one model share a row. Tap a photo to zoom.

  1. 11
    Focusrite ISA C8X USB-C Audio InterfaceISA C8X · Focusrite
    Index 71↓ 6.5%
    71
    ↓ 6.5%$2,091€1,869
    $2,091€1,869Check ↗
  2. 12
    Focusrite Scarlett 18i16 4th Gen USB Audio InterfaceScarlett 18i16 4th Gen · Focusrite
    Index 70↓ 1.2%
    70
    ↓ 1.2%$536€479
    $536€479Check ↗
  3. 13
    Focusrite Clarett+ 4Pre USB-C Audio InterfaceClarett+ 4Pre · Focusrite
    Index 70↓ 6.5%
    70
    ↓ 6.5%$581€519
    $581€519Check ↗
  4. 14
    Audient EVO 8 USB Audio InterfaceEVO 8 · Audient
    Index 69↓ 11.8%
    69
    ↓ 11.8%$192€172
    $192€172Check ↗
  5. 15
    Yamaha URX22C USB-C Audio InterfaceURX22 WH · Yamaha · 3 finishes
    Index 69Stable
    69
    Stable$413€369
    $413€369Check ↗
  6. 16
    Focusrite Clarett+ 8Pre USB-C Audio InterfaceClarett+ 8Pre · Focusrite
    Index 69↑ 10.3%
    69
    ↑ 10.3%$961€859
    $961€859Check ↗
  7. 17
    Focusrite Scarlett Solo 4th Gen USB Audio Interface Studio BundleScarlett Solo Studio 4th Gen. · Focusrite
    Index 67↑ 6.0%
    67
    ↑ 6.0%$279€249
    $279€249Check ↗
  8. 18
    Focusrite Scarlett 2i2 4th Gen USB Audio Interface Studio BundleScarlett 2i2 Studio 4th Gen. · Focusrite
    Index 67↑ 10.8%
    67
    ↑ 10.8%$346€309
    $346€309Check ↗
  9. 19
    TASCAM Mixcast 4 Digital Audio WorkstationMixcast 4 · Tascam
    Index 67↓ 8.1%
    67
    ↓ 8.1%$468€418
    $468€418Check ↗
  10. 20
    Arturia AudioFuse Studio USB-C Audio InterfaceAudioFuse Studio · Arturia
    Index 67↓ 10.1%
    67
    ↓ 10.1%$894€799
    $894€799Check ↗
  11. 21
    Audient EVO 16 USB Audio InterfaceEVO 16 · Audient
    Index 66↓ 10.0%
    66
    ↓ 10.0%$502€449
    $502€449Check ↗
  12. 22
    Yamaha AG06 MKII 6 Channel Analog MixerAG06 MK2 WH · Yamaha · 2 finishes
    Index 65Stable
    65
    Stable$223€199
    $223€199Check ↗
  13. 23
    Yamaha AG03 MKII 3 Channel Analog MixerAG03 MK2 BK · Yamaha · 2 finishes
    Index 64↑ 12.3%
    64
    ↑ 12.3%$183€164
    $183€164Check ↗
  14. 24
    Audient iD4 MKII USB-C Audio InterfaceiD4 MKII · Audient
    Index 63↓ 3.3%
    63
    ↓ 3.3%$167€149
    $167€149Check ↗
  15. 25
    Focusrite Clarett+ 2Pre USB-C Audio InterfaceClarett+ 2Pre · Focusrite
    Index 63↑ 15.0%
    63
    ↑ 15.0%$514€459
    $514€459Check ↗
  16. 26
    Apogee Duet 3 USB-C Audio InterfaceDuet 3 · Apogee
    Index 63↓ 10.8%
    63
    ↓ 10.8%$648€579
    $648€579Check ↗
  17. 27
    Focusrite Vocaster One USB Audio InterfaceVocaster One · Focusrite
    Index 62Stable
    62
    Stable$50€45
    $50€45Check ↗
  18. 28
    MOTU M6 6-Channel USB-C Audio InterfaceM6 · MOTU
    Index 62↓ 7.7%
    62
    ↓ 7.7%$525€469
    $525€469Check ↗
  19. 29
    Audient iD44 MkII USB Audio InterfaceiD44 MKII · Audient
    Index 62↓ 6.1%
    62
    ↓ 6.1%$566€506
    $566€506Check ↗
  20. 30
    Audient iD48 USB Audio InterfaceiD48 · Audient
    Index 62↓ 6.8%
    62
    ↓ 6.8%$926€828
    $926€828Check ↗
  21. 31
    RME Hammerfall DSP Digiface Digital I/O For HDSP CardsDigiface AES · RME · 3 finishes
    Index 62↓ 8.1%
    62
    ↓ 8.1%$1,901€1,699
    $1,901€1,699Check ↗
  22. 32
    RME MADIface USB 128-Channel MADI USB InterfaceMadiface XT II · RME · 2 finishes
    Index 62↓ 7.1%
    62
    ↓ 7.1%$2,181€1,949
    $2,181€1,949Check ↗
  23. 33
    Audient ORIA USB Immersive Audio Interface and Monitor ControllerORIA · Audient
    Index 62↓ 7.7%
    62
    ↓ 7.7%$3,221€2,879
    $3,221€2,879Check ↗
  24. 34
    Audient iD24 USB-C Audio InterfaceiD24 · Audient
    Index 61↓ 1.2%
    61
    ↓ 1.2%$357€319
    $357€319Check ↗
  25. 35
    Yamaha AG08 8 Channel Analog MixerAG08 BL · Yamaha · 2 finishes
    Index 61↓ 3.3%
    61
    ↓ 3.3%$497€444
    $497€444Check ↗
  26. 36
    IK Multimedia iRig BlueTurn Compact Bluetooth Page TurneriRig USB · IK Multimedia · 2 finishes
    Index 60Stable
    60
    Stable$69€62
    $69€62Check ↗
  27. 37
    TASCAM Series 102i USB Audio InterfaceSeries 102i · Tascam
    Index 60↓ 23.6%
    60
    ↓ 23.6%$196€175
    $196€175Check ↗
  28. 38
    Fender Link I/O USB Audio InterfaceLink I/O Interface · Fender
    Index 59↓ 13.9%
    59
    ↓ 13.9%$76€68
    $76€68Check ↗
  29. 39
    Audient iD14 MKII USB-C Audio InterfaceiD14 MKII · Audient
    Index 59↓ 1.4%
    59
    ↓ 1.4%$239€214
    $239€214Check ↗
  30. 40
    Fender Studio Quantum HD2 USB-C Audio InterfaceQuantum HD2 · Fender Studio
    Index 59↓ 6.4%
    59
    ↓ 6.4%$491€439
    $491€439Check ↗
  31. 41
    Focusrite Vocaster Two USB Audio InterfaceVocaster Two · Focusrite
    Index 58Stable
    58
    Stable$77€69
    $77€69Check ↗
  32. 42
    Audient EVO 4 USB Audio InterfaceEVO 4 · Audient
    Index 58↓ 7.0%
    58
    ↓ 7.0%$119€106
    $119€106Check ↗
  33. 43
    Universal Audio Volt 2 USB Recording StudioUniversal Audio · 3 finishes
    Index 58↓ 11.3%
    58
    ↓ 11.3%$167€149
    $167€149Check ↗
  34. 44
    Antelope Audio Zen Quadro Synergy Core USB-C Audio InterfaceZen Quadro Synergy Core · Antelope
    Index 58↓ 4.2%
    58
    ↓ 4.2%$670€599
    $670€599Check ↗
  35. 45
    IK Multimedia iRig Stream Ultra-Compact USB Audio InterfaceiRig Stream · IK Multimedia
    Index 57↑ 4.2%
    57
    ↑ 4.2%$111€99
    $111€99Check ↗
  36. 46
    Universal Audio Volt 1 USB Recording StudioUniversal Audio · 2 finishes
    Index 57↓ 17.0%
    57
    ↓ 17.0%$125€112
    $125€112Check ↗
  37. 47
    Mackie MainStream USB-C Streaming Audio InterfaceMainStream · Mackie
    Index 57↓ 8.0%
    57
    ↓ 8.0%$256€229
    $256€229Check ↗
  38. 48
    Universal Audio Volt 4 Gen 2 USB-C Audio Interface 2026Volt 4P Max · Universal Audio · 3 finishes
    Index 57Stable
    57
    Stable$558€499
    $558€499Check ↗
  39. 49
    Black Lion Audio Revolution 6x6 USB-C Audio InterfaceRevolution 6x6 · Black Lion Audio
    Index 57↓ 15.3%
    57
    ↓ 15.3%$558€499
    $558€499Check ↗
  40. 50
    Lewitt Connect 6 USB-C Audio InterfaceConnect 6 · Lewitt
    Index 56↑ 2.5%
    56
    ↑ 2.5%$274€245
    $274€245Check ↗

USB Audio Interfaces by the numbers

Measured across all 240 models we track, not a sample.

Price distribution

Median $279 — half of all USB audio interfaces here cost less.

13
50
62
40
33
20
21
1
<$50$50–150$150–300$300–500$500–1k$1k–2k$2k–5k$5k+
Weight1.25 kg

median of 132 models · 0.32 kg–5 kg

Size19"

median of 33 models · 4.3"–19"

How to choose the best USB audio interfaces

Preamps

This is HUGE. Cheap interfaces often have preamps that add noise or a brittle, harsh top end. You want something clean enough to handle dynamic vocals and guitars without sounding sterile, but with a little character if possible - a touch of warmth is always welcome.

Latency

Nothing kills inspiration like noticeable delay when you're tracking. Low latency is vital for comfortable recording, especially when playing along to backing tracks or using amp sims. ASIO drivers are your friend here.

Input/Output Options

Think about what you need now and what you might need later. Do you need multiple mic preamps for recording a band? Instrument inputs for direct recording? MIDI I/O for synths?

Driver Stability

A flaky driver can derail a session faster than anything. We look for interfaces with a reputation for reliable drivers and consistent performance across different DAWs and operating systems.

Headroom

This determines how loud you can push the preamps before they start to distort unpleasantly. More headroom gives you more flexibility when recording loud sources like snare drums or overdriven guitars, or when you want to add some controlled saturation.

Buying guide

Alright, so you're building a home studio - awesome! Getting a decent USB audio interface is the absolute first step, because that's your gateway to capturing good sounds. It's not just about getting audio in and out, it's about the character it imparts - that subtle warmth or harshness that can make or break a recording. Let's break down some solid options for the home studio player, from bedroom producers to gigging songwriters.

Don't get caught up in the 'more is more' trap. Extra inputs you don't use are wasted money. Focus on the preamps - that's where you'll really hear the difference.

Budget interfaces often skimp on the analog components, leading to a noticeable lack of low-end thump or a harsh high-frequency response. Spending a little more for better preamps and converters is almost always worth it. And seriously, check driver compatibility before you buy!

How the AudioFu Index works

Five measured signals and nothing else — no stars from strangers, no “tested by experts” we didn’t do. The weights are fixed and public. We don’t play these instruments; we measure the market around them.

This chart covers 240 USB audio interfaces from the Thomann catalogue. Before you buy, read hands-on reviews and, where you can, play it. Full methodology.

AudioFu earns a commission when you buy through our Thomann links. It never changes the order — the index does.

  • Demand40%

    How many of this exact model are for sale on Reverb right now — what musicians actually buy and resell.

  • Lineup20%

    How many finishes Thomann stocks — makers expand the models that sell.

  • Price15%

    Where the price has moved since we started tracking in August.

  • Specs15%

    How completely the maker documents it.

  • Maker10%

    How deep the brand’s range is in this category.

Questions

What's the difference between phantom power and XLR?

Phantom power (48V) is what powers condenser microphones. XLR is the type of connector used to connect mics to the interface. You need both - the XLR connector and phantom power to use a condenser mic.

What is ASIO and why do I need it?

ASIO is a low-latency audio driver protocol. It reduces the delay between your instrument and what you hear, making recording feel much more responsive. Without it, you'll likely experience frustratingly high latency.

Can I use any microphone with a USB audio interface?

Pretty much, as long as you have the right cable and the interface provides phantom power if the mic needs it. Just make sure the mic's output level is compatible with the interface's inputs to avoid clipping.

What's the deal with sample rate and bit depth?

Higher sample rates (48kHz or higher) and bit depths (24-bit) capture more detail and dynamic range. It's generally a good idea to record at these settings for maximum flexibility in post-production, though it does take up more space.

My interface is making a buzzing noise. What's going on?

That's likely ground loop hum. Try different power outlets, use a power conditioner, or experiment with balanced connections if your interface and mic support them.

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#1 · AudioFu Index 84Arturia MiniFuse 2 USB-C Audio Interface · $144€129
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