At the bottom the MX693 Series 3-Way Coaxial Speaker sits a high powered Flux Y30 Strontium Ferrite Magnets that is contained by custom tooled heavy gage powered coated steel baskets with the word “MASSIVE” stamped right into the steel. In the center of a MX693 speaker sits a 1” KSV coil that floats on a poly fiber spider. With custom rubber surrounds, laminated paper cones, a phase optimized 12Db crossover with smooth 13mm dome tweeters and 66mm mid-range these are highly value priced and are designed to fit almost any ride.