The R-5502-W II employs dual, updated 5.25-inch Cerametallic woofer cones for fast accurate sound with even tighter bass while a 1-inch Titanium tweeter mated to a pivoting Tractrix® Horn generates pinpoint imaging and flat in-room frequency response. The addition of a Linear Travel Suspension to the tweeter increases high frequency detail and smoothness. This in-wall speaker also consistently delivers thrilling realistic sound whether it s installed vertically as a left or right channel speaker or horizontally as a center channel speaker.