Lower Total Harmonic Distortion (THD) is universally better across electrical power engineering, audio reproduction, and telecommunication signal transmission. In audio amplifiers, a lower THD percentage ensures that the sound produced remains pristine, transparent, and completely faithful to the original recording without adding unwanted buzz, coloring, or audio artifacts. In electrical power distribution grids and industrial facilities, keeping THD low is critical to prevent excessive equipment overheating, premature insulation degradation, nuisance circuit breaker trips, and operational inefficiencies in sensitive transformers and rotating motors. Engineers design systems with active and passive filters specifically to drive THD down toward minimal thresholds.