POLK Audio 6"x9" 3-way Car Speakers DB690 New

Brand New POLK Audio 6"x9" 3-way car speakers The db690 technologies and features: * 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. * 25mm Liquid-Cooled Silk/Polymer composite Dome Tweeter and 19mm Super Tweeter. * High and low pass filters (Crossovers), deliver clearer, more accurate midrange and glare-free highs, with more natural-imaging than other speakers in this class that use single stage high-pass only filters. * 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. * Muscular ABS Grilles, computer optimized and based on exclusive MOMO designs. * 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 reliability. * Polarized Nickel Plated Terminals on PCB terminal board for simple, secure wire connections. * Rock solid, acoustically inert Stamped Steel Basket finished in rustproof Gun Metal Gray. Driver Complement Mid/Woofer 1 - 6" x 9" (15.24cm x 22.86cm) Polymer/Mica Composite cone with rubber surround Midrange 1 - 1" Diameter (2.54cm) Silk/Polymer Composite dome Tweeter 1 - 3/4" Diameter (1.91cm) Silk/Polymer composit dome Electrical Overall Frequency Response 35Hz-22KHz Nominal Impedance 4 ohms Power Handling (continuous) 100 w Power Handling (peak) 300 w Efficiency 93 dB Install Dimensions Full-range Mounting Depth Top Mount 3-3/16" (8.10cm) Bottom Mount 3-3/4" (9.53cm) Tweeter Mounting Surface Mount Height 11/16" (1.75cm) Cut-out Driver Cut-out Dimensions 5-3/4" x 8-1/2" (14.61cm x 21.59cm)