McDSP EC-300 HD v7The EC 300 Echo Collection brings the sound of dozens of echo and chorus effects into a single plug in. HD: AAX DSP Native, AU, VST3 A McDSP HD plugin is one that can run off of DSP. Whenever you purchase a McDSP HD plugin, its capable of running either natively as an AAX, AU, or VST3 plugin, or off of DSP power as an AAX DSP plugin for Avid HDX systems. A standard McDSP Native plugin does not include the AAX DSP format. Features Three delay types