Primary Source Expander

Primary Source Expander from Waves is a purpose-built expander that cleans up live mic bleed and background noise without dulling your sound. It lets you raise mic levels before feedback, isolates sources on loud stages, and reduces phase issues in multitrack recordings. Set-and-forget operation makes it fast on hectic gigs, while internal and external sidechain with HP/LP filters, a ducking mode, and release presets handle tougher bleed problems. Beyond live music, it’s great for lavaliers, panel discussions, and any session where crosstalk muddies the mix. If you record or mix live sound—from club gigs to corporate events—this tool helps you achieve a focused stage sound and cleaner monitors for performers. It suits hobby producers and live engineers working in FL Studio, Ableton, or Logic who need reliable isolation without complex routing.