from $299
The Kenwood eXcelon Class-D 4-Channel Marine Power Amplifier is a robust audio solution designed for marine environments. This aluminum-colored amplifier delivers 50W x 4 RMS at 4 ohms, or 75W x 4 RMS at 2 ohms, with a bridgeable option for 150W x 2 RMS at 4 ohms. Featuring bass boost and a speaker line input sensor, it offers versatile sound customization and easy integration into your boat's audio system.
Match your amplifier's power output (Watts RMS) to your speakers' sensitivity and impedance (Ohms). Do not obsess over astronomical peak wattage claims; RMS is the true measure of sustained power. Available from $299.
Amplifiers have practically zero ongoing costs aside from electricity, which is highly variable based on usage volume and class type (Class A uses more power than Class D). Good amplifiers can last decades with proper care. Consumables are virtually non-existent unless using tube amps.
Common Failure Modes
Solid-state amplifiers are extremely reliable. Failures usually stem from blown capacitors, overheated output transistors, or physical wear on volume potentiometers. Proper ventilation prevents 90% of heat-related failures.
Match your amplifier's power output (Watts RMS) to your speakers' sensitivity and impedance (Ohms). Do not obsess over astronomical peak wattage claims; RMS is the true measure of sustained power. Class D amplifiers run cool and are compact, while Class A/B offer traditional warm sound at the expense of heat and size.
Solid-state amplifiers can last 20+ years. Capacitors may eventually dry out and need replacement.
The Kenwood eXcelon Class-D 4-Channel Marine Power Amplifier is available at crutchfield, abt, starting at $299.
Amplifiers have practically zero ongoing costs aside from electricity, which is highly variable based on usage volume and class type (Class A uses more power than Class D). Good amplifiers can last decades with proper care. Consumables are virtually non-existent unless using tube amps.
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