Low-frequency speakers are an essential element of sound systems, but some people may prefer to use alternate phrases to describe these pieces of equipment. Subwoofers are perhaps the most commonly known synonym, as they are designed to specifically handle low-frequency sounds. Bass drivers, woofer, bottom-end, and low-range speakers are other suitable phrases that can be used to refer to these sound system components. Additionally, some people may simply use the general term "low-end," as this encompasses both the low-frequency speaker itself and the sounds it produces. Ultimately, the choice of language used to describe these speakers will depend on the user's background and familiarity with sound equipment.