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| • 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. • 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. Kapton's high melting temperature (725°F/400°C!) ensures high power handling and kick-butt reliability. • Multi-hole mounting pattern and shallow depth 3/4-inch our highest vehicle application ratio for easy drop-in installations in practically any car on the road, including yours. • New db-design grille. | • Durable butyl rubber surround won't 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 Reinforced, acoustically inert stamped steel baskets are electrostatically powder-coated for a tough as nails finish. • Stainless steel mounting hardware. |
