If speakers are in good condition, they could be sold or donated for reuse or to charity. Some local authorities and charities might even collect reusable items from your home. If the speakers are not reusable, there are lots of ways to recycle them, or some boroughs offer a free collection through Clearabee - visit our page about recycling electrical items or check with your council to see if they offer bulky waste collections.
Could your speaker be repaired? Find a London repair business in our Repair Directory. Or contact the manufacturer to see if they offer repair advice or services.