Features:

• 4" x 6" db Series Plate-style 2-way Speakers
• Power Handling:
• Peak: 300 watts per pair / 150 watts each
• RMS: 100 watts per pair / 50 watts each
• Recommended power range: 10 - 50 watts RMS per channel
• Polymer/Mica Composite Cone
• Butyl Rubber Surround
• 3/4" Silk Dome Tweeter
• 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
• Low-mass 2-Layer Kapton Voice Coil
• Pole Plate Heat Sink promotes better heat dissipation for superior power handling and reliability
• Rock solid, acoustically inert Stamped Steel Basket finished in rustproof Gun Metal Gray
• Stainless steel hardware
• 4 ohms impedance
• Top-mount depth: 1-13/16"

Specifications: 

• Series: db (Polk)
• Priced Per: Pair
• Speaker Size: 4" x 6"
• Design: 2-way Plate
• Tweeter Design: Dome
• Tweeter Composition: Silk-Polymer Composite
• Woofer Composition: Polymer/Mica Composite
• Woofer Surround: Butyl Rubber
• Peak Power Handling: 150 watts
• RMS Power Handling: 50 watts
• Sensitivity: 91 dB
• Frequency Response: 71 - 22000 Hz
• Impedance (Per Voice Coil): 4 ohms
• Shallow Mount Installation: Yes
• Top-Mount Depth: 1-13/16"
• Bottom-Mount Depth: 2"
• Cutout Dimensions: 4" x 6" 
• Speaker Grilles: No
• Number of Speakers: 2