Page 103 of Car Entertainment Guide 2006 by Pioneer UK

glossary dvc dual voice coil the flexible wiring configurations of the dvc subwoofers when used in combination with a low load impedance compatible amplifier can give even more powerful bass reproduction capability dvc subwoofers have 2 voice coils of 4 impedance each connect the voice coils in parallel for the power of a 2 subwoofer or connect them in series and get an 8 subwoofer these in turn allow various installation configurations and creation of a superior system tall dual-layer surround the tall dual-layer surround allows for extended excursion of the cone while keeping the same cone surface area it also handles the huge power increase for more controlled bass response even at loud volumes vccstm voice coil cooling system the vccstm brings high power to the pioneer subwoofers the vccstm takes the heat away from the 4-layer voice coil using a heat resistant highly conductive aluminium bobbin plus extra slits in the bobbin reduce eddy currents while radiating the heat this results in distortion-free tonally accurate sound easy connector most 17 cm and 13 cm custom-fit models are equipped with a handy easy connector making it easier to cable them with the car s speaker connectors glass-imide voice coil bobbin many pioneer speakers utilise a voice coil whose cylinder is made from a woven fibreglass material bound by a polyimide resin this glass-imide material has much higher heat resistance which translates into higher power handling capability for the speaker and less distortion high-power motor assembly the huge motor structure provides more powerful force to move the cone assembly harder and consequently overcome the tremendous air pressure resistance impptm injection-moulded polypropylene composite cone pioneer uses a special injection moulding that ensures uniform cone thickness for superior linearity and clarity pioneer s composite technology guarantees the perfect mix of polypropylene and carbon fibre graphite and other materials to optimise the speaker cone for its specific application woofers midranges or tweeters etc interlaced fibre reinforced impptm cone pioneer s patent-pending impptm cone utilises a composite blend of interlaced long fibres e.g carbon fibres this cone is extremely rigid yet lightweight for low distortion and powerful bass at high sound pressure levels kevlarŪ brand fibre cone woofer this woofer was meticulously designed to reproduce real strings and vocals with less distortion thanks to the kevlarŪ brand fibre composite cone you can expect accurate smooth sound from mid-bass to upper midrange frequencies linear power response with no roll to restrict the cone s movements this innovative system mimics a finely tuned precision piston smoothly moving the speaker cone up to a higher level than ever and thanks to its unique edgeless diaphragm there is no stress or distortion around its diaphragm neodymium magnet neodymium has a high magnetic flux density it is about 7.5 times stronger than a standard magnet and allows pioneer speaker designers to make a tweeter that is smaller and has reduced distortion as compared to a model using a standard magnet overhung surround by extending the wide-roll surround over the typical gasket area this design provides 22 more cone surface than traditional surround designs the increased surface moves more area and achieves higher sound pressure levels pure magnesium balanced dome the revolutionary 0.05 mm thin pure magnesium balanced dome midrange and tweeter delivers superior sound details smooth and high-speed sound reproduction high sensitivity low distortion and a wide sound range ­ ideal for dvd-audio reproduction separate component speakers these are speakers such as woofers midranges and tweeters which reproduce only certain frequencies component speakers not only reproduce the audio signal more accurately but also increase the listener s control over the audio signal strontium magnet a very powerful magnetic material that has a greater magnetic force field than a ferrite magnet strontium magnets improve efficiency and power handling capabilities this enables engineers to build a much smaller magnet and consequently a thinner speaker to fit in areas with limited mounting depth without compromising sound quality swivel mount tweeter the swivel mount tweeter offers the best of all installation possibilities featuring a specially designed flush-mount cup this mounting system allows the tweeter to be angled in any direction for optimum imaging and placement 103

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