Customers tell us that once they install the OSD-MK650, they are completely knocked out by the sound quality. Part of our Spitfire Ultra Reference Series, this 6.5" speaker consistently outperforms speakers that cost hundreds of dollars more. The MK650 includes the high-end feature of the MK850 in a smaller 6-inch speaker size. This extremely well crafted in-ceiling speaker delivers a high end audio without the high end price. Like our entire MK Series, the MK650 is for customers who are picky about their sound and listen to every sonic nuance in music and sound tracks.