三低音單體

Compact powered subwoofer with 8" driver and (2) passive radiators, 150W internal amplifier.

• New compact design
• Semi gloss finish
• Polymer-bonded-cellulose active driver
• Long throw excursion
• High efficient digital amplifier
• Dual passive radiators

https://www.youtube.com/watch?time_continue=13&v=L58SJdrwdZA