Under , set Output to Headphones to Chat Audio (not "All Audio") to ensure the Game:Voice mixer works correctly. PC/Mac Setup
Warning: Do not use manuals for "Mixamp 2013" or "Mixamp M80." The requires the Gen 3/Gen 4 TR manual . Astro Mixamp Ma3p03 Manual
Ensure the power button ring is Red , indicating Console Mode. If it is White, hold the power button for 3 seconds to switch modes. Console Settings: Under , set Output to Headphones to Chat
The Astro MixAmp Pro TR (Model MA3P03) Go to product viewer dialog for this item. If it is White, hold the power button
If you are using this unit, remember the golden rule: Without that, the dial on the front of the Ma3p03 does nothing.
Depending on the sticker on your Ma3p03, you have either the (requires a separate chat adapter or direct USB on Series X|S) or the PlayStation Edition (works via USB audio out of the box). Here is the universal setup.