Polk Ultramarine 7.7" Speakers - Black Alpha I Gen II +

Alpha I Gen II + Bravo

Scanpod Mast Mount - 3 Instruments

Enables FishReveal SideScan for HDS PRO

P800 and finer DA scratches

Power (Max) - 120W

Polk Ultramarine 7.7" Speakers - Black Alpha I Gen II +Ultramarine 7. 7" Speakers Black 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. Also included is LED lighting built into the cone of the speaker. Underneath,