DS18 DX4 Deluxe Compact Full-Range Class D Advance Technology 4-Channel Amplifier 3000 Watts The DX4 Full Range Digital Amplifier was designed to supply massive amounts of power in small areas. Compact enough to be placed almost anywhere, this amplifier is perfect for fittings to motorcycle fairings and other spots most amplifiers would be unable to fit into. What this amplifier doesn’t have in size, it makes up for in the production and maintenance of it’s power; this amplifier’s components are attached to a printed circuit board (PCB) that allows it to maintain high efficiency even at low voltages and utilize surge protection features (such as speaker overload, short circuit, and low input voltage protection) which helps it provide unyielding power that maximizes your speakers to their production peak