About product and suppliers:
            858 cast woofer products are offered for sale by suppliers on Alibaba.com, of which subwoofers accounts for 55%, professional audio, video & lighting accounts for 9%, and speaker accounts for 8%. 

A wide variety of cast woofer options are available to you, such as computer, home theatre, and portable audio player. You can also choose from 3 (2.1), 2 (2.0), and 1 cast woofer, as well as from portable, mini cast woofer, and whether cast woofer is passive. 

There are 657 suppliers who sells cast woofer on Alibaba.com, mainly located in Asia. The top countries of supplier is China, from which the percentage of cast woofer supply is 100% respectively.