How different between B&W 804s & B&W 805s????

Blackstonesjd : Thanks for your post, it very helpful but i think i'll stay with 805s (Or may be upgrade 804s) because my room is small, it's only 12spm (3x4). 803s will be too big for this room. I'm going to buy a new McIntosh 6600 soon and find out what 805s can give first then upgrade the speakers later.

I think that is the right way to go. Please let us know what you think of the 805 with the new amp.

I've heard MA6900 pair with this 805 before at a hifi shop. It sounds amazing even the room is big and room acoustic not so good, I believe MA6600 can do better than that. Once again thanks all of you for sharing experience, i'm sure those experience cost you alot of money in the past

I currently use a Mac MA2275 tube integrated amp with a pair of 805s's and a TAD subwoofer in a large 20'x 27'room. Being a log home all the walls are (naturally)wood with a carpeted floor. The sound is excellent and there is plenty of volume available. I run the speakers direct with no crossover. Driven by the preamp outputs the subwoofer with crossover set @ 45hz is only for fill at lowest octave and is virtually unnoticeable it does not color the mid bass at all. I was never really a B&W fan but these speakers lack the brightness that in the past characterized B&W speakers to me. Female vocals are exquisite. The 804's on the other hand sound congested & boxy to me lacking both the smoothness and open sound of the 805s's. I originally auditioned both speakers driven by a C220/MC275 combo in pretty good dealer showroom. Hope this helps.

I run the speakers direct with no crossover.

What do you mean by this Gerald?

BTW, I am a fellow log home owner.