When its about the performance of a Boomblaster, its about power and speaker size. With its powerful 60 Watt amplifier and two 16cm Subwoofers plus two 10cm Fullrange-Speakers, this Boomblaster provides both of this and offers an impressive and powerful Sound! All speakers are protected by massive metal Grilles, the Subwoofer is additionally protected by the handle bar on the side of the Boomblaster.