– Twin 21″ high power loudspeakers
– 6″ voice coils for high power handling
– Cross-fire enclosure configuration
– Reinforced enclosure design
– Thunderous low frequency reproduction
The SF-221 is a twin 21″ subwoofer system designed to provide high levels of low frequency energy. The loudspeakers, equipped with 6″ voice coils, highly effective heat dissipation schemes, and an extremely robust mechanical design are ideal for dance club applications where long hours of demanding use is the norm. The reinforced enclosure design and cross-fire configuration are key in providing stunning, high-intensity bass.