5-1/4'' (130mm) 2-Way Component Speaker SystemThe woofer cone developed for the C508GTi is anodized aluminum. This material moves the first-modal cone-body breakup to a high frequency outside the operating band, significantly reducing distortion and maximizing midrange clarity. An optimized nitrobutylene (NBR) low-loss surround material is used to damp cone breakup modes. A 2'' aluminum edge-wound voice coil is used. Using this ribbon-shaped aluminum wire allows us to precisely specify the number of windings in the magnetic gap optimizing motor force for high efficiency and low distortion. The tweeter featured in the C508GTi MKII system uses a pure titanium dome suspended by a rubber surround to optimize output and reduce distortions that travel along the tweeter''s dome. The C508GTi MKII utilizes an outboard crossover with a 3500Hz fouth-order Linkwitz-Riley acoustic alignment. Air-core inductors are used to reduce magnetic saturation under high-power conditions and polypropylene capacitors ensure near ideal characteristics with low equivelent series resistance (ESR). The crossover also features impedance compensation and a tweeter protection circuit. Tweeter level may be adjusted for flat response +2dB or -2dB. The C508GTi MKII midrange/woofer cone also features Plus One (patent pending) technology, which provides up to 30% more cone area than competing speakers of the same size. Speaker with Plus One deliver higher efficiency and more bass output. The Tweeter in the C508GTi MKII component system features the I-Mount (patent no. 5,859,9170) tweeter-mounting system. This system facilitates easy and versatile tweeter installation (surface, flush, or flush angled).
