Greetings modulator37,
If you are having difficulty with audio from your AirPods Max, begin by following the guidance found here:
If the sound from your wireless headphones cuts out or is distorted - Apple Support
"Improve your Bluetooth connection
Your headphones communicate using Bluetooth, and a Bluetooth signal can be interfered with or weakened in some situations.
Your headphones might lose their connection more often with streaming audio than with content that is stored on your device.* With your device within a few feet of you, try to listen to music or other audio content that is stored on your device—not streamed—with your headphones. On your iOS or Android device, open the Music app. On a Mac with macOS Catalina, open the Music app. On a Mac with macOS Mojave or earlier, or on a PC, open iTunes. Then play a song that does not have the Download button
next to it. Or tap the Download button
to download the song.
If your headphones maintain their connection without distortion during this test, then here are a couple of things that can help in other situations:
- Keep your iPhone or other device close to you, so that no obstructions, like walls or floors, are between you and your device.
- If possible, move to a different place—in particular, move away from places with many people or a lot of Wi-Fi activity, poorly shielded cables, microwave ovens, and wireless speakers (or turn off the oven or speaker)."
Take care.