The Elgato Wave XLR is the best box for a solo streamer: 0-75 dB of gain drives any microphone on this site with no booster, Clipguard catches the shout that would otherwise clip your take, and tap-to-mute on the top surface beats reaching for a key bind. If you want a general-purpose interface instead, the Scarlett 4i4 has 69 dB plus hardware loopback and MIDI.
Streaming asks two specific things of an interface, and neither is conversion quality.
- Loopback — routing your computer's own audio (game, music, a guest on a call) back into the stream without a second cable or a second device. Without it you are patching physical outputs into inputs and fighting echo.
- Enough gain — streamers gravitate to low-output broadcast dynamics, and the most popular of them, the SM7B, wants about 60 dB of clean gain. A box that supplies 55 dB produces the thin, hissy stream audio everyone recognizes.
The six interfaces, ranked for streaming
Elgato Wave XLR
Top pickElgato · The most gain of any single-channel box, built for streaming
The right box if you stream or record alone with a low-output dynamic and want the gain problem to simply not exist. It is not a general-purpose interface, and it is the wrong buy if you also record instruments.
Why it is here
- `75 dB` of gain drives an SM7B with room to spare and no booster, which is the single most common streaming problem solved outright
- Clipguard catches a shout that would otherwise clip the take
- Capacitive tap-to-mute on the top surface, which is genuinely better than reaching for a key bind
What it costs you
- One microphone input, so a co-host needs a second unit
- The mixing lives in Elgato's software, so it is a Wave Link setup rather than a neutral interface
- No MIDI, no line inputs, no instrument input
Focusrite Scarlett 4i4 (4th Gen)
Focusrite · The most gain, plus MIDI and loopback
The most complete interface under $500 for someone who records voice and plays keys and streams. If you do none of those extra things, the 2i2 has identical gain for less money.
Why it is here
- `69 dB` of gain, the same as the 2i2, so no microphone on this site needs a booster
- MIDI and loopback in one box — the two features that usually force a second purchase
- Four line outputs, so monitors and a separate headphone amp can both be fed
What it costs you
- Costs meaningfully more than the 2i2 for features a solo voice recordist may never touch
- Still only two mic preamps despite the four-in name
- Larger footprint than the desktop boxes
Steinberg UR22C
Steinberg · Windows driver quality and a hardware loopback switch
The pick on Windows if driver stability and a physical loopback switch matter to you. The missing gain figure makes it a gamble with a low-output broadcast dynamic — pair it with a hot microphone.
Why it is here
- A hardware loopback switch rather than a software setting, which is the difference between streaming working and streaming needing a manual
- Yamaha-lineage Windows drivers, historically the most stable in this price band
- MIDI in and out plus onboard DSP monitoring FX
What it costs you
- Steinberg does not publish a maximum mic-gain figure, so you cannot plan a gain budget for a quiet dynamic
- The DSP FX are monitoring-only and add nothing to the recording
- 32-bit conversion is a headline number rather than an audible advantage
Focusrite Vocaster One
Focusrite · A solo host who does not want to set levels
The pick for a solo podcaster who wants the gear to get out of the way. If you record music as well as speech, a general-purpose interface with the same gain is the better buy.
Why it is here
- `70 dB` of gain means any microphone on this site works without a booster
- Auto Gain removes the single most common beginner mistake in one button press
- Stereo loopback plus phone and camera connections, which is the actual podcast workflow
What it costs you
- 24-bit / 48 kHz only, and no instrument input — it is a speech box and nothing else
- The three Enhance presets are printed into the recording
- One microphone input; a co-host means the Vocaster Two
Rode RodeCaster Pro II
Rode · A multi-guest show with no engineer
The right purchase when you regularly record three or four people and post-production time is your real constraint. For one or two voices an interface plus a DAW does the same job for a fraction of the money.
Why it is here
- 76 dB of gain and -131.5 dBV EIN means any microphone on this site works with room to spare
- Six physical faders and onboard processing let one person run a four-person show live
- Records multitrack to its own storage, so a laptop crash is not a lost episode
What it costs you
- Far more money than an interface, and most of it buys features a solo host never uses
- The onboard processing is a commitment unless you record raw tracks alongside
- Big, and it owns your desk
Focusrite Scarlett 2i2 (4th Gen)
Focusrite · The most gain per dollar in a two-input box
The default answer for someone buying an SM7B or PodMic: it supplies enough clean gain that you never need a booster, which makes it the cheaper total purchase even when it is not the cheaper box. Look elsewhere only if you need MIDI or four outputs.
Why it is here
- 69 dB is the most gain of any interface at this price, and enough for an SM7B with headroom to spare
- 120 dB dynamic range means the converters are not the weak link
- Two inputs, so a second person does not mean a second purchase
What it costs you
- Air mode is a fixed voicing, not an EQ you can dial
- Plastic-and-metal build feels less solid than the SSL or Audient competition
- No MIDI, which matters if you also play keys
What we did not pick, and why
- Gaming headsets and sound cards. They cannot accept an XLR microphone at all — audio interface vs sound card covers why.
- Interfaces with no loopback. You can bodge it with a physical loop, and you will fight echo and level for as long as you keep doing it.
- Boxes whose processing is printed into the recording with no clean path. Record clean and process in software, where you can change your mind after the stream.
- The Behringer UMC204HD. No published gain figure and no loopback, which are precisely the two things this page ranks on.
Pair it with
- A dynamic microphone, not a condenser. A condenser hears your PC fan and your room in detail. Best dynamic microphones for streaming ranks the options by output level.
- A low-profile arm. Best boom arms — an arm that stays out of camera frame.
- Closed-back headphones. Open-backs leak your stream audio back into an open microphone.
How to choose
- Solo streamer, one microphone, want the gain problem gone: Wave XLR.
- **Want one box for streaming *and* music, including MIDI: Scarlett 4i4.**
- Want loopback you flick rather than configure: UR22C — but check your microphone is hot enough, because Steinberg publishes no gain figure.
- Solo podcaster who does not want to set levels: Vocaster One, for Auto Gain.
- Three or four people on the stream: RodeCaster Pro II, which is a console rather than an interface.
