TheThe 6.5-inch MB Quart Nautic is a waterproof marine-certified coaxial speaker ideal for use in boats, RVs, and other off-road vehicles. These speakers have a rustproof connection, a crystal clear tweeter, and a water resistant cone for the midrange. Grills are sold in pairs and are black.

Features:

Our 75-inch composite dome has a silky-smooth musical response, high output, and low amp power requirements.
Water-resistant composite polypropylene cone with temperature-stable UV Butyl rubber surround, fitted on a lightweight composite frame; used as a midrange driver.
Uv Coupling Cones & Surroundings However, Butyl Rubber keeps its tune regardless of the weather. Doesn't get rigid in the cold
Powerful Voice Transformer and Operating in Extreme Heat: In order to handle higher power while staying lightweight, the voice coil is made of high-temperature copper wound on an aluminum former.
The spider is made of a woven fiber composite that keeps the cone and voice coil steady no matter the song.
Vents in the front and back allow air to flow over the voice coil and out through the spider and back plate.
The 6dB high-pass crossover's uncluttered design enables for maximum signal to be sent from the amplifier or source device to the speaker.
The mounting gear is Die Cast for durability and powder coated to withstand rain, snow, and wind.
Polymer composites provide a sturdy framework without distorting the sound or introducing unwanted harmonics, making them ideal for outdoor use.
High-energy iron ferrite magnet motor assembly, reducing size while increasing output.
The UV-treated, weatherproof, composite grills are built into the speaker frame for hassle-free setup.

Specification:

Weight: 3.25 lbs
Series: Nautic
Color: Black
Warranty: 1 Year
IPX Rating: IPX67
CEA Standards: CEA426B
Speaker RMS Power Handling (watts): 40
Speaker Peak Power Handling (watts): 80
Speaker Impedance (ohms): 35Hz-21kHz
Speaker Sensitivity: 89dB
Speaker Mounting Diameter / Cut Out (in): 5
Speaker Outside Diameter (in): 7
Speaker Mounting Depth / Chassis Depth (in): 2.29
Speaker Size (in): 6.5

Proposition 65 Notice:

Caution: 

Lead, a chemical known to the State of California to cause cancer and birth defects or other reproductive damage, may be present in this product. Visit www.P65Warnings.ca.gov for details.