Alpine SBG-30KIT “All-in-one-box” Bass Upgrade Kit for Awesome Levels of Deep, Resonant Bass

Attractive All-in-one-box Bass Upgrade Kit – SBG-30KIT
This product is a bundle consisting of the digital V-Power mono amplifier MRV-M250, the 12 (30cm) bass reflex subwoofer SBG-30BR and an included high quality wiring kit.
Remote Bass Level Control included.