I had a pair some 10 years ago, and yup, they are awesome indeed, in many ways.
Try lifting/moving them around...
I bought my pair very cheaply from a recording studio in London.
They had supposedly belonged to some famous band or other (...can't remember which...)
All the 15"s needed refoaming, and I used Wembley for this, but wasn't happy with the result, so a friend came over from Sweden, and he did this expertly on my kitchen table...he he.
Before I moved to Sweden, these were sold to a guy in Germany.
Truly gigantic speakers, and some say they are the best...