Low-frequency reinforcement is the focus here, with subwoofers ranging from compact active studio units such as the ADAM Audio Sub 8 and Genelec 7050 series to high-output touring boxes like the L-Acoustics SB18, Yamaha DXS18 and Nexo LS600. These units extend the frequency response of a sound system into the bass register, providing the weight and impact required for music, film sound and live event production.
Active models include onboard amplification and processing, allowing straightforward integration with existing PA or monitoring setups, while passive units such as the SB18 and LS600 are built for larger-scale reinforcement alongside external amplification. Applications span concert touring, studio monitoring, broadcast and stage productions where controlled, extended low end is needed to complement full-range speaker systems.