These B&O S45’s had rotted foam surrounds on the woofers and a blown tweeter.
All functions are tested before work is undertaken here at Open Ear Audio so you know the specifics of your repair from the beginning.
I was able to source and fit a new tweeter ‘diaphragm’ to resurrect the faulty tweeter, and replaced the foam surrounds. The hard-wired speaker cables on these units also needed some tidying up.