Letsynthesize Heatwave Plugin Has A Secret (SLATE DIGITAL) [FXP] By Plugins | July 1, 2024 0 Comment Letsynthesize Heatwave Plugin Has A Secret (SLATE DIGITAL) [FXP] Slate Digital released a free plugin for Black Friday 2023 called Heatwave. It’s a nice saturation plugin, but it has an unexpected feature. Enjoy! Download link