Dismantle B&W 802D

Hi there,

Looking for someone who knows how to pull apart the head section of a B&W 802D to get the tweeter and midrange separated.
My missus plugged an RCA direct from the source to the Power amp on one channel and when i pressed play i sent that speaker to the moon. Tweeters blown. both woofers are poling and sunken 10mm back into the cabinet. I've only had the speakers for a month just to rub salt into it.

I think the mid is ok. the tweet & woofers are definately shot as the tweeter when measured directly from the crossover is open circuit and the woofers have varying resistance when you move them by hand.

I would greatly appreciate if someone has the smarts and knows how to remove the head section and get into the midrange and tweeter enclosure so i can either send the top section away for repair or replace the tweeter voice coil myself.

B&W seem to have all of the info regarding repair of these very well tied up as i have scoured the internet looking for some manuals or a forum to no avail.

Any information would be greatly appreciated and i figure this would be the place to ask. Thanks