Rockford Fosgate RFYXZ-FSE Lower Front 6 ¾" Speaker Enclosures for Select Yamaha YXZ Models (pair)6. 5" front lower speaker enclosures (pair) for select YXZ models RFYXZ FSE Front lower speaker enclosure for select Yamaha YXZ models. Optimized sealed enclosure Texture and color matched to vehicle interior Compression molded Fiberglass Reinforced Polymer with UV resistant finish Uses factory mounting locations with some drilling required for installation Designed for use with Prime Marine RM0652 & RM0652B model speakers Designed for use with Prime