Avedis Audio PSP E27 Multistage Equalizer Plug-in The PSP E27 is a multistage equalizer plug-in (VST3, VST, AAX and RTAS for Windows; AudioUnit, VST3, VST, AAX and RTAS for Mac OSX) modeled after our analog equalizer E27. The PSP E27 offers three-band equalization with nine selectable frequencies in a standard 500x package. The PSP E27 [...]