You're mixing in Logic Pro, and you want to hear how it sounds on your iPhone — through AirPods, a Bluetooth speaker, or just the phone speaker. The old way: bounce a file, AirDrop it, listen, repeat. That's a workflow killer.
With Auxfeed, you stream Logic Pro audio directly to your iPhone in real time over Wi-Fi. No bounce. No account. No IP addresses to configure. Here's how to set it up in under five minutes.
What You Need
- Mac running Logic Pro — Logic Pro is macOS-only, so this workflow is Mac-specific.
- Auxfeed plugin — free download from auxfeed.com. The macOS installer is universal (Apple Silicon + Intel).
- Auxfeed iOS app — free on the App Store.
- Both devices on the same Wi-Fi network — that's all the networking you need. The app finds the plugin automatically via Bonjour discovery.
Step-by-Step Setup
Step 1: Download and Install the Auxfeed Plugin
Go to auxfeed.com and download the macOS installer. Run it and follow the prompts. The installer places the Audio Unit plugin in /Library/Audio/Plug-Ins/Components — the standard system-wide location that Logic Pro scans automatically.
Once installed, open Logic Pro. If Logic Pro was already open, go to Logic Pro > Plug-in Manager and click Rescan to pick up the new plugin.
Step 2: Insert Auxfeed on Your Stereo Output Channel Strip
Open the Mixer (X key). Find the Stereo Out channel strip — it's typically the rightmost strip. Click any empty Insert slot on that channel strip, navigate to Audio Units > Payette Forward > Auxfeed, and select it.
Inserting on the Stereo Out means you're monitoring the final mix exactly as it leaves Logic — downstream of your master bus processing. That's the right place.
Step 3: Choose Your Codec in the Plugin Window
The Auxfeed plugin window opens automatically after you insert it. Select your codec:
- PCM — lossless, full quality. Use this on a fast, uncongested Wi-Fi network. Best for critical listening.
- Opus — compressed, lower bandwidth. Use this if you're on a busy network or hearing dropouts with PCM.
- AAC — available on iOS via Apple AudioToolbox. A good middle ground if you prefer it.
For most studio Wi-Fi setups, PCM is the right call.
Step 4: Open the Auxfeed App on Your iPhone
Launch the Auxfeed app. It scans for plugins on the network automatically — no IP address, no port numbers, nothing to configure. Your Mac running the plugin appears in the list within a few seconds. Tap it to connect.
Step 5: Press Play in Logic Pro
Hit play. Audio streams from Logic Pro to your iPhone in real time. Whatever is coming out of your Stereo Out — with all your mix bus processing applied — is what you hear on the phone.
Routing to AirPods, Bluetooth, or Any Output
Once the Auxfeed app is receiving audio, your iPhone handles the output routing. Swipe up to Control Center and switch to AirPods, a Bluetooth speaker, or AirPlay — the stream follows whatever output you select. You can also just hold the phone up and check the speaker directly. The point is you're hearing the mix through the actual transducers your listeners use, in real time, while you're still in Logic.
Tips for Getting the Most Out of It
- Insert after your limiter. If you have a limiter or maximizer on the Stereo Out, place Auxfeed in an Insert slot after it. That way you're hearing the true output signal — limited, at the right LUFS target — not the pre-limiter signal.
- Use the free LUFS meter. The Auxfeed app includes a built-in LUFS meter. Watch it while Logic plays to see your loudness in real time. Compare against streaming targets: −14 LUFS for Spotify, −16 LUFS for Apple Music.
- Check the phone speaker on purpose. It sounds bad. That's the point — if your low end disappears or your mix becomes muddy on the phone speaker, something needs attention. The iPhone speaker is a ruthless reference.
- No account required. Auxfeed works on Wi-Fi without signing in to anything. If you want to stream outside the studio over the internet, that's an Auxfeed Pro feature — but for in-studio iPhone monitoring, the free tier covers everything.
Download Auxfeed
The plugin is a free download at auxfeed.com. The iOS app is free on the App Store. No subscription needed for Wi-Fi monitoring.
For a complete guide to using your phone as a reference monitor while mixing, see Phone as Studio Monitor — The Engineer’s Guide.