Ultramarine 8.8" Speakers - BlackPolk's Ultramarine speakers are designed to produce maximum sound in marine applications. Featuring "Air Suspension" technology and high-temperature voice coils, the Ultramarine family of speakers will crank up to 250 watts.These powerful 8.8" marine speakers have rugged, removable sport grilles that stand up to sunlight and moisture. Also included is LED lighting built into the cone of the speaker.Underneath, you'll find UV-treated silver polypropylene cones, durable surrounds, and cast aluminum baskets. Features:Air Suspension DesignCast Aluminum BasketHigh Temp Voice coilSnap On Grille Installation OptionTechnical Specifications:1" Titanium dome tweeterSensitivity - 89.4dBMax Power - 250W125 Watts RMSCut-out Dimensions - 7-3/8"Mounting Depth - 4-1/6"In the Box:Two (2) - 2 way speakersTwo (2) Trim ringsMounting hardwareInstallation manual∗Sold in pairsWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to >P65Warnings.ca.gov.