I have an 324 and think its the best ive had. Low noise and very smooth ,dynamic,and articulate. Never owned a herron but i have had an aesthetix rhea, no comparison. Then I upgraded the aethetix to the signature model(+$3000) with all nos tubes($$ ?)It was very close, had a hard time deciding but I sold the aesthetix and kept the ear. Also owned a BAT p5, and mcintosh pre with phono. Ear was better. I have heard many sytems that are very expensive and can't imagine that an ear 324 would be the weak link. However, my cartridges all are moving coil, I don't know how the mm stage sounds.