The Bose B1 Bass Module works seamlessly with the Personalized Amplification System family of products

The Bose B1 Bass Module works seamlessly with the Personalized Amplification System family of products to deliver the low-frequency impact you want through 2 high-output, high-excursion 6-1/2" drivers. It produces deep, strong bass for keyboards, kick drum, bass guitar, and other instruments that play in the baritone/bass range. Light and compact, strong bass is yours without the bulk and weight of traditional subwoofers. Connects to the PS1 power stand with a single cable.