8 channels (so one is enough for a lot of tracks)
For weeks of use, I am also tonnbr /> This plugin uses the Generation of all harmonics Voxengo (as HarmoniEQ Warmifier and other ...)
The only graphic I use qualiseur becaufe precisely, it gnre natural harmonics that sound (the goodwill of Voxengo: D)
Just be a boost (for it is in that boost gnre harmonics) on the 6K or 12K and you will see the diffrence with qualiseur "classic"
a jewel freeware that can even be used on a final mix, which is rare for an even more graphic and freeware
PS: it's free!