Polk Ultramarine 7.7" Speakers - Black Engine Parts & Service All models are make before

All models are make before break design and are ignition protected

Balmar APM devices meet ISO 16750-2 for Load Dump Protection and ISO 7637-2 for Surge Protection

Output per Bank: 10 amps

reducing the risk of data interception

including wicking

Polk Ultramarine 7.7" Speakers - Black Engine Parts & Service All models are make beforeUltramarine 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,