crossover network
n (Electronics) an electronic network in a loudspeaker system that separates the signal into two or more frequency bands, the lower frequencies being fed to a woofer, the higher frequencies to a tweeter
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014