The M•Flex SXP is designed to deliver the punchy kick from a bass drum, a hard low-frequency bass line or basically anything from 100Hz and below. At the same time it contributes to an overall increase of dynamics and sound pressure of the M•Flex top-boxes. The 15" drive unit is a powerful construction which at the same time features a uniquely designed lightweight chassis. A special Soft Roll design is featured in the spider.