When i analyse frequency in Adobe audition for some of the best voices i found a common patter i found was; the below snaps. trimming all above 16k frequencies (very sharply). capturing all frequency below 16k at around -40db.
@Mike y ask here is how to achieve this cutting off above 16k frequency.
would be great if you could add a youtube on how you practice VO, (is it all scripted or just key points, are you using teleprompter) how do you rehearse VO.