[. . . ] [. . . ] D M TM6 0 1 Sta nd- mount/Bookshelf loudspeaker system Product Summary q The DM 620I is the smallest in the 600 Series although it can still produce a big sound. It has a 165 mm (6. 5 in) Kevlar® bass/mid-range driver that employs the same profile as B&W's more sophisticated P Series ensuring delivery of a natural, neutral sound with very low coloration. q As well as the 600 Series standard features the DM 620I also boasts flared reflex ports which dramatically increase bass efficiency and power handling. [. . . ] [. . . ]