Halo is a mastering finisher that reduces the whole mastering rack to one decision. Pick a target, Streaming, Club or Podcast, each tuned to the loudness and tone that world expects, then turn the LIFT knob until the golden halo ring closes around the target. A closed ring means you have arrived: loud, glued and release-ready, with a true-peak limiter on the door so nothing clips and nothing gets penalized by streaming platforms.
Behind the single knob, Halo chains the essentials of a mastering rack: gain staging, glue compression that makes the track feel like one finished thing, a sheen lift tuned for masters, final stereo width polish, and true-peak limiting. It goes at the very end of your master chain, after everything else.
Get Halo on the main store →For streaming-ready loudness and polish, yes. Halo hides the gain staging, glue, sheen, width and limiting behind LIFT, and the closing halo shows you the sweet spot visually.
It stops the loudest peaks from clipping even after digital-to-analog conversion, which is what streaming services check. Halo handles it automatically so your upload never gets flagged or distorted.
No. The targets encode the loudness standards for you. If you know mastering, treat Halo as the fastest possible reference finisher.
Halo is 19 dollars, and it is free to download during the launch window. VST3 and AU for macOS, Windows coming soon.
Ready to try it? Halo lives on the Sebastian Macan plugin store along with ten more plugins and 796 MIDI chord progressions.