Watt

Watt is a unit of power that measures the output strength of a guitar amplifier. In amps, watts indicate how much electrical power the amp can deliver to the speakers, which generally correlates to loudness and headroom. For example, a 5-watt amp is great for bedroom practice or studio use with natural tube breakup at low volume, while a 100-watt amp can fill large venues with clean or distorted tones. However, wattage alone doesn’t determine tone quality—it’s about how the amp uses that power and how it interacts with speakers and effects.