The B&W Bowers And Wilkins DM640N  or dm 640 i   Replacement Crossover Dividing Network is a product designed to divide audio frequencies in a B&W speaker system. Made by the renowned brand B&W in the United Kingdom, this wired crossover is specifically designed for the DM640i model. Tested and confirmed to work, this replacement part ensures optimal sound quality and performance for your home audio setup.

Works fine..