*****The M0-65B full-range speakers are purpose built to play high quality sound in outdoor environments. The Element Ready® design enables these speakers to withstand water, salt, dust, and UV rays. *****Grill Integrated 0.5" (13mm) LCP Balanced Dome Tweeter 1" (25mm) High Temp Kapton® Woofer Voice Coil Former Sealed motor design 100% UV Stable ASA plastic frame & grille design stands up to harsh marine environment Linear Synthetic Fiber Blend Spiders Zinc Nickel-plated Marine grade brass connection terminals UV and Salt-Fog Resistant Santoprene Surround VAST vertical attach surround technique increases effective radiating cone area up to 25% Co-molded surround and mineral filled polypropylene cone body 6dB/Octave crossover network 2-Year Warranty Fully sealed integrated concealed crossover (ICC) network *****Speaker Type2-Way Full-Range Tweeter Size (Nominal Diameter)0.5" (12.7 mm) CEA-2031 CompliantCEA-2031 Guidelines Midrange Size (Nominal Diameter)6.5" Nominal Impedance (Ohms)4-Ohms Power Handling65 Watts RMS 250 Watts PEAK Frequency Response (Hz)40 Hz - 25 kHz CrossoverHigh-Pass (HP): 6dB Sensitivity (dB @ 1W/1M)90.5 Midrange Mounting Depth2.52" ( 63.9 mm) Grille/Trim Ring IncludedYes Sensitivity (dB @ 2.V/1M)91 Shipping Weight Mounting HardwareStainless Steel Shipping Weight1.93 Lbs. (0.88 Kg.)