B&W Nautilus 802 compared to 804

I have owned my 802N for more than a year. I have not heard the 804s much but I really like my 802s. However I agree with many of the comments above. a) with the 802s plan on upgrading your amplification to more power or bi-amping them. I had the Krell KAV300i and it could not handle them. I now run them with the FPB200c and one day will bi-amp them b) for my ears a good subwoofer does help them sound better. I run a Velodyne sub with mine. c) these speakers will reveal any weaknesses in your system. Every upgrade in cables for example has been easy to assess. d) If you're like me the 802s can be a love/hate thing because they make you want to constantly upgrade. They do not help an already nasty addiction.

Hmm...I too would consider the 803s IF you can sit far enough back from them to get good coherence. I couldn't.
Frankly, I'd swap out the 804s for the Revel Performa F30 if nearfield listening is required. Otherwise get the 803 and forget adding the sub. The 803 produces PRODIGIOUS bass, and has a far better balanced frequency response in most rooms than the 804's anemic bottom end.

I recently listened to the proAc .5. It at least approached the open, clear , sound of the 804's with bass. Ribbon tweeter, 3 way design. Only needs 100-150 watts so NuVista is overkill. For 6K this speaker was the way to go for smaller room without big $$ on amplification

I think 801 and 802 are very different from the rest of the matrix line. Get the 802 if you can afford it. The sensitivity should be very similar to the 804.

If I had to choose, I rather get an 805 than an 804.