x540 fta+path+ca sti5518 chip+ sharp 7395 features: - with embedded conax,viaccess,seca,irdeto,nagravision cas. - 60 programmable satellites/4,000 programmable channels. - frequency directed dual driver technology. - fdd2 eliminates uneven response created by conventional dual-driver designs. - matrix mode. - creates 5.1 surround-sound effect from 2-channel stereo sources. - innovative centre channel lcd clip. - speaker attaches to the top of most flat-panel monitors. - satellite speaker stands. - rotate for easy wall-mounting and positioning. - dynamic, real-time bass equalization. - maximizes low-frequency response at all volumes. - high-excursion, ported, down-firing subwoofer. - displaces more air for deeper bass.