Never heard either, but know some of the parts and similar.
There’s a B&W house sound that I’m not a fan, nor am I a big fan of any of their tweeters since the nautilus series began. I particularly dislike them for movies. However if you LIKE the B&W sound that’s what you should get, and you’ll find plenty of fans who can’t imagine I could not like them. :)
If the 805D uses the more expensive Mundorf Supreme they may sound a
little more scintilating. A not very natural sound to my ears, but many
like it.
The AP Maestro appear to be much more neutral and simpler (in a good way ) designs made from excellent components. The Maestoso page says they use Mundorf MKP caps (Not sure in the B&W) in the crossovers. A brand I really like, but MKP is not the most expensive.
MKP may sound a tad dark but with spooky good low volume detail.
The drivers used in the Maestro are excellent, and by no means cheap. Besides tonal balance, the place where I really think you'll find them completely different from the B&W is in dynamic range, but listen for yourself. Try them on movies or truly dynamic classical music and I think you'll hear a difference for yourself.
If new, I’d give either them 48-72 hours of break in time.
Best,
Erik
