The phrase refers to a selection of foot-operated electronic devices utilized by musicians, predominantly guitarists and bassists, during the year 2021, considered superior within their category. These devices function by reducing the dynamic range of an audio signal, making quieter sounds louder and louder sounds quieter, resulting in a more consistent and controlled output. For example, a guitarist might employ one to even out the volume of fingerpicked passages and heavily strummed chords.
The significance of identifying superior units lies in the enhanced sonic control they offer to performers and recording artists. These effects pedals can improve sustain, add punch, and create a polished, professional sound. Historically, compressor pedals have evolved from bulky studio rack units to compact, pedalboard-friendly devices, reflecting advancements in electronics and a growing demand for accessible audio processing tools for musicians.