Power range: 4-45 watts RMS (135 watts peak power) Frequency
response: 60-22,000 Hz Sensitivity: 93 dB Dynamic Balance
Polymer/Mica Composite Mineral Filled Cone is stiff yet lightweight
for big sound, little distortion. Marine Certified Polk db Series
speakers are built tough to withstand the toughest environments so
they are perfect for use in boats of all types. That's why Correct
Craft offers Polk Audio speakers in their award-winning Nautiques ski
and wakeboarding boats. 19mm Liquid-Cooled Silk/Polymer composite
Dome Tweeter with Neodymium magnet for clear, detailed highs.
Low-mass 2-Layer 25mm Kapton Voice Coil former is lightweight for high
sound output. Kaptons high melting temperature (725F/400C!) ensures
high power handling and kick-butt reliability. Muscular ABS
Grilles, computer optimized and based on exclusive MOMO designs.
Durable Butyl Rubber Surround wont fall apart under the stress of
extreme temperatures, sunlight or time, for years of the great Polk
sound. Pole Plate Heat Sink promotes better heat dissipation for
superior power handling and reliability. Flat Spider for faster,
longer excursion linear motion. Flexible Woven Leads sewn directly
into Spider for greater reliability. Rock solid, acoustically
inert Stamped Steel Basket finished in rustproof Gun Metal Gray.
Stainless steel mounting hardware. One year parts & labor