10" (25CM) 12" (30CM) 15" (38CM) 18" (45.72CM) 21" (53.3CM) 6.5" (16.5CM) 8" (20CM) ENCLOSURES ENCLOSURES - CUSTOM HIGH END SUBWOOFERS LOADED ENCLOSURES POWERED ENCLOSURES SLIMLINE SUBWOOFERS SUBWOOFER CABLES & ACCESSORIES