Approximately 5 yrs ago we held a meeting of the Audio Society specifically geared towards examining current cartridges. We used a vintage RCA shaded dog Beethoven/Classic Records Coltrane/Blue note Hank Mobley/Dark Side of The Moon MFSL/Stock James Taylor that was heard in the Audio Salons of the time. Throughout the test several people commented on the James Taylor observing that his voice changed in apparent volume with changes in pitch. It drove everyone crazy for an hour. Someone quietly began to scour the album cover reading all the fine print. There it was; the use of the dreaded Aural Exciter. Makes the tones of his voice expand and contract as he hits different notes and is extremely noticeable. Maybe they improved the technology since then but after that meeting you couldn't give any recording made through that device away.