The 1508-8 SPS BWX Black Widow Weather Resistant Woofer from Peavey features a mid-bass and mid-range 15" cone with an impedance of 8Ω. The 1508-8 is designed to work best with crossover points below 1.5kHz but can also work with crossover points up to 2kHz. This cone is is a variation of the existing Kevlar impregnated cones used on all Black Widow woofers, it is weather resistant and constructed of a triple polymer infused composite. It also features a dust cap which is made out of the same polymer material.
The voice coil assembly uses thermoset-insulated aluminum ribbon wire, bonded onto a durable, heat-resistant polyimide composite former. The coil wires are solderless diffusion welded to high conductivity OFHC copper foil leads, which are embedded inside the former assembly and soldered to the tinsel leads with high temperature silver solder. The solder joint is coated with a thermally conductive silicone adhesive for encapsulation and heat dissipation.
The voice coil assembly is bonded to the Kevlar cone and nylon composite spider using a thermoset epoxy. The magnet structure includes subtle changes to its geometry designed to improve power handling. The driver features a cast aluminum frame, replaceable basket assembly, Rubatex gaskets and spring-loaded terminals.