NRV10 InterFX was designed as a companion to the M-Audio NRV10 analog mixer with built-in 10-in and 10-out digital audio interface. Audiffex created the interFX application in cooperation with M-Audio to enhance the mixer's capabilities by using external VST effects. NRV10 interFX NRV10 mixer comes bundled with a simpler version of the interFX application. The bundled version allows you to open 2 VST effects per track. Sharing the best features with the whole inTone family All interFX programs (presets) are compatible with the inTone family. You get the complete guitar processing purchasing interFX Pro. interFX playlists are compatible with inTone playlists