JBL Control SB210 Dual 10" Indoor/Outdoor High Output Compact Subwoofer Black 10" (2x250mm) Aluminum/Ceramic Composite Cone Drivers 400 Watts Power Handling Fully Outdoor Capable Design SonicGuard Overload Protection 13 x M6 Suspension Inserts, Including Inserts for Optional U-Bracket AV Shielded Compact, Low-Profile Design