A Pair of 28B'S would be Perfect to Drive these Babies 800D'S

and a Few Bonus Points
Robert
Conclusion These are expensive speakers, regardless of how much more expensive others may be. You have to be prepared to add to the expense by spending money on some serious power, because you won’t know how good they are if you don’t. You also absolutely need to try a variety of amps and cables with the 800D’s because they respond very audibly to changes in those other components.
Finally, you must be prepared to spend time with little positioning tweaks to get the optimal placement, and that isn’t easy with 275 pounds of speaker. If you aren’t prepared to do these things you may never know what they can do. However, if you do they will reward you with absolutely terrific music, with detail, smooth treble extension, soundstaging, depth, PRAT, slam, muscular bass and a sense of intimacy that belies their size.
I’ve had several really great speakers come through my listening room, and some have tempted me with superior bass (and I’m a sucker for great bass) or superior transparency or some other isolated quality, but I haven’t yet found anything with a better overall performance in my system. It’s going to take a really serious pair of speakers to displace my B&W 800D.