Buy applying computer-aided design (CAD) techniques B&W has substantially improved the performance of the original Model 801. The Matrix 801 Series 2 can deliver a full octave more bass and treble than its predecessor and at the same time offer increase sensitivity, better dispersion and transient response. ● The bass system decided by CAD programs is a sixth-order Butterworth alignment vented-box system giving less cone excursion at subsonic frequencies. The cone is made from a specially formulated plastic compound allowing critical mass requirement to be accurately controlled. Technical highlights Kevlar®: B&W developed and patented the method of using Kevlar® for loudspeaker cones to reduce unwanted standing waves. DuPont originally created Kevlar® for use in bulletproof vests. ● Tweeter on top: B&W's Tweeter on top technology ensures that the sound remains focused and time-sensitive and that the stereo-image is presented with unparalleled three dimensional accuracy. Matrix: The basic construction of nearly all loudspeakers is exactly the same - panels of wood-based materials, bonded to form a rectangular box. B&W studied and evaluated how each aspect of cabinet behaviour and the efficiency of various materials and construction methods affects sound.