B & W 805 nautilus broken tweeters ?


Does it happend to any of you guys ? I have a pairs of b & w 805 nautilus recently purchased from a local guy but after a month of listening to it I just realized that no sound coming out of the tweeters that all , sound like both broken tweeters or something wrong with the crossover , I have no idea ! Please someone with experience with diy can give me some idea or input about this , does it easy to burn the tweeters or crossover ?
atl4love
This B&W site includes all the service manuals:

http://bwgroupsupport.com/manuals/service#ID_Nautilus800Series

This site shows a parts list for all B&W speakers:

http://bwgroupsupport.com/parts/partslist-bw

Scrolling down to the N805 speaker, the tweeter is $144 (p/n ZZ11266).

Marcus


Is it possible that you may have damaged something in the crossover?  I ask because I had a pair of Vandersteen 2ce speakers in which both tweeters weren't working.  I ordered a new set from Vandersteen after giving them the serial #and put them in 6 days later when they came in.  There was no sound out of them either.  Turns out the crossovers had blown parts and needed rebuilding.  In my case it turned out a Yaquin cheap piece of junk Integrated blew my crossovers out and 2 days later, caught on fire.