The Garmin JL Audio XDM400 4-Channel Car and Marine Amplifier is a marine-rated four-channel amplifier suited to both automotive and on-water audio systems.

• Four channels power a set of speakers, with the option to bridge for greater output across fewer channels
• Rated for use in cars as well as the marine environment
• Marine-rated construction resists moisture, vibration, and sun exposure
• Built for installation aboard boats and other powersports vehicles

Sold by Mirage Fish Finder as a standalone item — confirm fitment, included accessories, and full specifications before purchase.