Polk Ultramarine 7.7" Speakers - White Latches Programmable speed alarm

Programmable speed alarm

Weight: 35g (including cable)

Battery x three (3)

Extra rugged for salt water durability

Alloy sheave models are available for use with wire

Polk Ultramarine 7.7" Speakers - White Latches Programmable speed alarmUltramarine 7. 7" Speakers White Polk'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 200 watts. These powerful 7. 7" marine speakers have rugged, removable sport grilles that stand up to sunlight and moisture. Underneath, you'll find UV treated silver polypropylene cones, durable surrounds,