>>3651318reverb effects can be done via software. VoiceMod is probably one of the more commonly used voice effects programs out there. the free version is very limited, but it's not that expensive if you want to unlock all the features.
some of the big names like the Holos use a GoXLR hardware mixer which comes with its own effects (pic related ) that can be used to add effects on the fly. the goxlr is expensive (~$500 ) and only works with XLR mics (hence the xlr part of the name)
