I was gonna make a joke about two YATS'es in a row, but it didn't sound like one. A hard clipper? Something more interesting?
High Dynamic Multistage Op-Amp design
makes me think there's both a gain stage and an output buffer/recovery stage done with op-amps, maybe even the input buffer if there is one. I think I'm getting more and more cynical about advertising as time goes on. Not that "High Dynamic" really means anything tbh.