JVC KS-DR2004D 4-Channel Compact Digital Amplifier (600W) for Car, Marine, UTV & Motorsport Vehicles, Solid Corrosion-Resistant Aluminum Chassis, IPX6, IPX7 & IP6X Certified and Vibration-Proof

"The KS-DR2004D is designed to handle the harshest conditions from sand, dirt and water.

The KS-DR2004D is built tough and ready for the elements so you can take your music anywhere you go.

IPX67 Rated Sealed Chassis protects from water intrusion from complete submersion in 3 meters of water for 30 minutes.

Dustproof made to handle tough off-road conditions.

ASTM B117 Salt Corrosion Resistant, made to handle tough off-road conditions.

Thicker Mounting Feet, Thick Foam Heat Transfer Padding between components and chassis, and larger Batt/ GND Solid Metal Connection lugs combine for optimal vibration resistant made to handle tough off-road conditions."