Line6 - Helix Native 3.11 VST, VST3, AAX 圆4 (FREE DOWNLOAD) Helix Native is a recognized guitar effects processor in plugin format.I have created a list with my top recommendations of VST Plugins and sample libraries, based on both the presets and how easy it is to create, shape and sound design your own pad sounds. There are so many VST Synths and Sample Libraries that are great for pad sounds and atmospheric backgrounds.