Sometimes size doesn't matter. You get big power from a little box with Alpine's Power Density Digital Amplifiers. Super-efficient Class-D technology allows these small-but-mighty marine amplifiers to run so cool they can be stacked together for a sweet multi-amp setup, freeing up valuable space on your boat.

The PDX-1.600 mono amplifier supplies a whopping 600 watts of power from its amazingly compact body, plenty of punch for most sub systems. Beefy internal components and clever engineering keep the power output strong and the noise low for superb fidelity and control. The adjustable low-pass filter tailors the amp's output to your specific system.

Front-mounted controls make post-installation adjustments a snap. Gold-plated RCA inputs, outputs, and power connections resist corrosion and signal degradation, and its special marine coating makes it fit for a life at sea. Nifty speaker wire plugs ensure a tight connection and guarantee that your speakers play in unison.