I have to recant my previous ratings in comparison with the D3 805. Both series are great but the D4 is a big step forward in its lows and improvements in the high frequencies. They are not harsh to me and with all tge improvements made to tge D4 series its a noticeable step forward. For my needs they are great for a small to medium large room. Have them set up with tge proper gear and placement and they will reward you with an amazing listening experience highly recommended 5 stars

I own the 805 D3 and have auditioned the 805 D4. It's not a night and day difference. l'd say it's a 10-13 percent improvement in aspects of the sonic character. If you're coming from the D2 generation or before I'd say there is a 40 60 percent improvement. That would be worth it. Consider the $8500 price and $1250 stands. Almost mandatory because you'll want to bolt these down for such an investment. My opinion if you're coming from a D3 it's not enough to justify the price of the improvement. Id also consider the durability of thw leather as well.

I wouldn’t say they are worlds better than the 805 d3 possibly 10 to 13% better. They are very similar in many ways but also different physically Reaser bigger than the past generation my only problem with the speakers is I feel they don’t justify the $8000 asking price and that’s not even counting the investment of the speakers stands from bowers and Wilkins. I feel that the 805 D3 is a great alternative if you’re looking to be in the 800 series but at a lower price. If you’re going into the 800 series and you want their best bookshelf and current generation this would be it otherwise the 805 d3 is a good viable option

Heard them at bestbuy and compared them to the 805 d3. They are good but within tge same reslm as the d3. Say 10-13% better Not eorlds apart.