- Indoor and outdoor all-weather speaker with fully-sealed cabinet- 70V- Black- Metal-alloy MDT mid/bass speaker cone delivers naturalsound with ultra-low distortion- Extremely stable, long-lasting MDT cone structure- High efficiency and power handling for optimum performance- Dual-layer voice coil with separate inner and outer windings for high output with ultra-low distortion- MLS fluid voice coil suspension replaces distortion-causing mechanical spider- Compound rubber surrounds resist UV rays and salt spray- Gold-plated, rust-proof connectors- High-density, injection-molded cabinet resists chipping and scratching- Low-resonance cabinet structure- Easy-to-grasp multi-faceted mounting brackets with 180o swivel- Easy to grip, oversized mounting knobs- Brackets mount with knobs attached for easier and safer installation in hard-to-reach locations- Heavy-gauge aluminum bracket- Corrosion-resistant driver frame & mounting hardware- Attractive styling with “Armadillo” ridges for stiffness- Coaxial speaker system