The loudspeakers in the JBL Synthesis Hercules system at CES 2003 include five SK2-1000 loudspeakers and multiple Synthesis S1S subwoofers. The electronics are composed of the SDP-40 surround processor/preamplifier, SDEC2500A digital equalizer, nine S800 power amplifiers and a custom S2500IC interconnect kit.The SK2-1000 JBL Synthesis Hercules loudspeakers utilize the identical 435Be beryllium midrange compression driver and 045Be ultrahigh-frequency beryllium compression drivers used in JBL's top-of-the-line, award-winning K2 S9800. The 435Be midrange compression driver uses a 3" voice coil in a compact, neodymium motor assembly that is encapsulated in a Kapton® suspension for unmatched durability. The driver is progressively heat formed (rolled) from pure beryllium into extremely thin foil prior to forming the diaphragm, creating a stronger, less brittle structure with superlative sonic performance. The speakers' 045Be ultrahigh-frequency compression driver features a neodymium magnet and a ribbon voice coil directly mounted to a beryllium diaphragm to reduce weight and deliver maximum high frequencies.