When I bought my 800d's, the older version, I was told the crossover was better than the 802d's. I really liked the 802d's and naturally no stores had the 800d's on the floor. My impression of the difference seem inline with the reviewers comparison. The 800s are cleaner, have a more even bandwidth, and more air between notes/performers. I realize this is the older version vs. older but have heard the newer 802 diamonds and think its more of the same, maybe they are better, but won't be selling mine for a newer version. As far as the improvements, I'm no expert by far, but my gut tells me its more about compatibility with lesser power.