Waves Primary Source Expander

Original price was: €79.00.Current price is: €39.99.

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Say Goodbye to Live Mic Bleed

Mixing live shows is a rollercoaster ride, where things constantly change. Mic bleed could be causing feedback that prevents you from turning up the PA. Or you may constantly need to mute background noise when a singer isn’t singing. Or maybe you need excellent isolation with a live multitrack recording.

PSE is the answer to these and other live sound challenges. It’s an easy-to-use, optimized expander that solves most issues instantly—and allows you to handle even the toughest bleed problems.

  • Obtain higher mic levels before feedback
  • Eliminate mic bleed quickly: in most cases just set-and-forget
  • Reduce phase issues in live recordings
  • Achieve a more focused stage sound by eliminating mic crosstalk
  • Improve monitoring for musicians on stage
  • Not just for live music—ideal for lavaliers and panel discussions
  • Internal and external sidechain with HP/LP filters
  • Ducking mode for added precision in complex live scenarios
  • Release time presets to speed up your process


  • Version: macOS Catalina 10.15, Big Sur 11, Monterey 12, Ventura 13, Sonoma 14
  • CPU: Intel or Silicon Architecture
  • RAM: 8
  • Disk: 16
  • Version: Windows 10 64 bit and Windows 11
  • CPU: X64 compatible Intel or AMD CPU
  • RAM: 8
  • Disk: 16