Most “best audio interface for streaming” guides are written by music gear reviewers who test interfaces with guitars and studio monitors. They cover gaming and music production well, but completely ignore the use case that churches and event production teams face every week: routing a mixing board feed into a streaming computer while adding ambient room sound.
We route audio for live church services and events every week. This guide covers the standard gaming and music streaming use cases plus the church and event production angle that nobody else writes about.
What Is an Audio Interface?
An audio interface is the bridge between analog audio (microphones, instruments, mixing boards) and your computer. It converts analog audio signals into digital data that your streaming software can use, and converts digital audio back to analog for your headphones and monitors.
Every audio interface includes a preamp (amplifies weak microphone signals), an analog-to-digital converter (ADC), a digital-to-analog converter (DAC), and a headphone amplifier. The quality of these components determines how clean, detailed, and noise-free your audio sounds.
You need an audio interface if:
- You use an XLR microphone (Shure SM7B, Rode PodMic, Electro-Voice RE20, etc.)
- You want to route audio from a church mixing board to a livestream
- You need multiple audio inputs (two mics, mic + instrument, board + room mic)
- You want lower latency monitoring than your computer audio provides
- You want a dedicated headphone amp with a volume knob
Our 7 Top Picks for 2026
Every interface below has been tested in a real production environment. Prices are current as of April 2026.
| Model | Price | Inputs | Best For |
|---|---|---|---|
| Focusrite Scarlett Solo (4th Gen) | $130 | 1 XLR/instrument combo + 1 instrument | Best Budget |
| Focusrite Scarlett 2i2 (4th Gen) | $180 | 2 XLR/instrument combo | Best for Church Streaming |
| MOTU M2 | $180 | 2 XLR/instrument combo | Best Metering |
| Universal Audio Volt 2 | $220 | 2 XLR/instrument combo | Best Tone |
| Audient iD4 MKII | $200 | 1 XLR + 1 instrument (JFET DI) | Best Preamp Under $250 |
| Focusrite Scarlett 4i4 (4th Gen) | $260 | 2 XLR/instrument combo + 2 line inputs (rear) | Best Multi-Source |
| RODECaster Duo | $399 | 2 XLR (with built-in processing) + Bluetooth + USB + 3.5mm | Best All-in-One |
Focusrite Scarlett Solo (4th Gen)
Best for: Solo streamers, podcasters, and anyone starting out. One mic input is all you need for a single-person stream. Air mode adds brightness to vocals. The gain halo LEDs make it easy to set levels correctly without looking at software.
Church use: Works for routing a single board mix feed to the streaming computer. Use the instrument input for the mixing board output via a 1/4-inch TRS cable.
The default recommendation for solo streamers on a budget. Clean preamp, dead-simple setup, and reliable drivers across Mac and Windows.
Focusrite Scarlett 2i2 (4th Gen)
Best for: Two-person podcasts, church livestreaming (board mix + room mic), and anyone who needs two separate audio sources. The two combo inputs handle XLR microphones or 1/4-inch line-level signals from a mixing board.
Church use: The go-to for church streaming. Input 1: mixing board main output. Input 2: ambient room microphone for congregation response. Mix both in OBS for a natural livestream sound that is not just the dry board feed.
Our top recommendation for church livestreaming. Two inputs at $180 solves the board-plus-room-mic problem that every church encounters.
MOTU M2
Best for: Streamers and producers who want to see their levels at a glance. The full-color LCD meters on the front panel are genuinely useful during a live stream — you can spot clipping or low levels without switching to your audio software. ESS Sabre DAC means the headphone output sounds excellent for monitoring.
Church use: Great for church streaming teams that want visual feedback on audio levels. The LCD meters prevent the number-one church streaming audio mistake: levels that are too low or clipping.
The audiophile choice at the $180 price point. Better converters and metering than the Scarlett 2i2, slightly less intuitive for beginners.
Universal Audio Volt 2
Best for: Streamers who want their voice to sound warm and professional without any post-processing. The Vintage mode engages a hardware compressor circuit modeled after the Universal Audio 1176 — it evens out your volume and adds a polished warmth that sounds great on vocals.
Church use: The Vintage mode helps smooth out dynamic range from a church mixing board feed, making the stream audio more consistent without needing a software compressor in OBS.
If you want the best-sounding voice with zero software processing, the Volt 2 Vintage mode is unique at this price.
Audient iD4 MKII
Best for: Musicians who stream and need the cleanest possible preamp for vocals and instruments. The Class-A Audient console preamp is the same topology used in Audient’s professional mixing consoles. The JFET DI input adds harmonic warmth for guitars and bass.
Church use: Clean enough for professional recording and streaming. One input limits church use to a single board feed without a separate room mic.
The best-sounding preamp at this price point. Limited to one mic input, so primarily for solo use.
Focusrite Scarlett 4i4 (4th Gen)
Best for: Streamers who need more than two audio sources: board mix + room mics + additional sources. The rear line inputs handle mixing board feeds at line level. Four outputs allow separate monitor mixes for different destinations.
Church use: The best mid-range option for churches. Inputs 1-2: mixing board stereo output. Inputs 3-4: pair of room microphones for ambient sound. Four outputs allow separate mixes for the stream, the lobby, and confidence monitors.
The church streaming workhorse when you need more than two inputs. MIDI I/O is a bonus for controlling ProPresenter or other worship software.
RODECaster Duo
Best for: Podcasters and streamers who want a complete production console, not just an interface. Built-in audio processing (compressor, EQ, noise gate, de-esser) on every channel means broadcast-ready audio without any software plugins. Bluetooth input for phone calls or remote guests.
Church use: Overkill for basic church streaming, but excellent for churches that also produce podcasts or need a self-contained audio solution for small group recordings.
More than an audio interface — it is a complete audio production console. Eliminates the need for OBS audio plugins. Premium price justified by the built-in processing.
Church Audio Routing: Mixing Board to Livestream
This is the section most streaming audio guides skip entirely. Routing audio from a church mixing board to a livestream is different from plugging in a microphone. Here is the step-by-step process we use for every church setup.
Identify the output on your mixing board
Use an auxiliary send (aux out), direct out, or the main mix output. An aux send is ideal because you can create a separate mix for the stream without affecting the house speakers. If your board has a dedicated monitor or broadcast bus, use that.
Choose the right cable
Most mixing boards output via XLR (balanced) or 1/4-inch TRS (balanced). Use a balanced cable — XLR to XLR if your interface has XLR inputs, or 1/4-inch TRS to 1/4-inch TRS for line-level inputs. Avoid unbalanced cables (1/4-inch TS) for runs longer than 10 feet as they pick up interference.
Set the input level on your audio interface
Start with the gain knob at zero on your interface. Play audio through the board and slowly raise the gain until the meter shows a healthy level (peaks around -12 to -6 dB). Avoid clipping — once audio clips at the interface, no amount of software processing can fix it.
Configure OBS
In OBS, add an Audio Input Capture source. Select your audio interface. Set the volume level so the meter in OBS peaks around -12 to -6 dB. Apply a limiter filter at -1 dB to prevent unexpected peaks from causing distortion on the stream.
Add a room microphone (optional but recommended)
A dry board feed sounds clinical on a livestream — it lacks the energy of the room. Connect a condenser microphone (like an Audio-Technica AT2020) to a second input on your interface. Position it above the congregation or near the front of the stage. Mix it in at about 20-30% volume alongside the board feed for a natural, energetic stream sound.
Common mistake: Using a headphone or monitor output from the mixing board as the stream feed. These outputs are affected by the house volume knob \u2014 if someone adjusts the house volume during the service, the stream volume changes too. Always use a dedicated aux send or direct output that is independent of the house mix.
How to Choose the Right Audio Interface
Solo Streaming / Gaming
One XLR mic input is all you need.
Pick: Focusrite Scarlett Solo ($130)
Two-Person Podcast
Two XLR inputs for host and guest.
Pick: Focusrite Scarlett 2i2 ($180)
Church Livestream (Basic)
Board mix + optional room mic.
Pick: Focusrite Scarlett 2i2 ($180)
Church Livestream (Advanced)
Board stereo mix + stereo room mics.
Pick: Focusrite Scarlett 4i4 ($260)
Music Production + Streaming
Best converters and metering.
Pick: MOTU M2 ($180)
All-in-One Podcast Studio
Built-in processing, soundboard, Bluetooth.
Pick: RODECaster Duo ($399)
Frequently Asked Questions
Do I need an audio interface for streaming?
Only if you use an XLR microphone. USB microphones connect directly to your computer. Audio interfaces are essential for connecting professional XLR microphones, routing mixing board feeds (for church streaming), or handling multiple audio sources. They also provide better preamp quality and lower latency than built-in computer audio.
What is the best audio interface for streaming under $200?
The Focusrite Scarlett Solo ($130) for single-mic setups, or the Focusrite Scarlett 2i2 ($180) for two inputs. The MOTU M2 ($180) is a strong alternative with better metering. All three have clean preamps, USB-C connectivity, and reliable drivers.
What is the best audio interface for church livestreaming?
The Focusrite Scarlett 2i2 ($180) for basic board-to-stream routing. The Focusrite Scarlett 4i4 ($260) when you need board mix plus room microphones. The 4i4 is our go-to recommendation for churches that want broadcast-quality stream audio.
Can I use an audio interface with OBS?
Yes. Every audio interface works as a standard audio input in OBS. Add it as an Audio Input Capture source in any scene. Latency is typically under 5ms. No special configuration required.
Audio interface vs USB microphone — which is better?
USB microphones are simpler for solo streaming. Audio interfaces win when you need multiple inputs, mixing board integration, better preamps, or the flexibility to upgrade microphones independently. If you plan to grow your setup, start with an interface.
How do I route a church mixing board to a livestream?
Take an aux send or direct output from the board, run a balanced cable (XLR or TRS) into your audio interface, and connect the interface to your streaming computer via USB. Select the interface as your audio input in OBS. Use a dedicated aux send for independent stream mix control.
At Ruah Creative House, we route audio for church livestreams and events every week. Getting the board-to-stream audio right is one of the most common challenges churches face, and it is one of the first things we solve for our Ministry Media Partner and Production Lab clients.