The BASH® technology implemented in the amplifier module of the subwoofer features power reserves with much lower levels of distortion. This is achieved by using an audiophile class A/B power amplifier whose supply voltage is regulated by a class D amplifier circuit to prevent any unnecessary power losses and to obtain the efficiency of a class D amplifier. Since the audio signal is amplified in the analog domain, the high-frequency interference typical of digital amplifiers is eliminated. This design results in a low-noise amplifier with lower electromagnetic interference emissions. The absence of crossover distortion, which is a problem in traditional class D designs where the switching speed of the transistors is limited, yields further improvement in total harmonic distortion.