Waves Primary Source Expander

About Waves Primary Source Expander

The Waves Primary Source Expander (PSE) is a dynamic expander plugin designed to reduce stage bleed and feedback sensitivity by attenuating microphone levels when the source is idle. This tool is essential for live sound engineers and recording professionals seeking cleaner mixes.

• Reduces stage bleed and feedback sensitivity when microphones are idle
• Features internal and external sidechain with high-pass and low-pass filters
• Offers ducking mode for precision in complex live scenarios
• Provides release time presets for quick operation

Ideal for live performances and studio recordings, PSE ensures microphones are as loud and clean as possible while preserving the source’s original tone and natural ambience.