Amazon.com: Alphasonik 15" Flagship Series 1400 Watts Raw Sub Woofer Speaker Cast Aluminum Basket Driver for Pro Audio PA DJ Cabinets Subwoofer with High Handling Power Extremely Clear and Loud - FW1532 :
55-1300 - Multicomp Pro - Cone Woofer, 10", Aluminum
STLF-15120A | Sound Town 15" Cast Aluminum Frame High-Power Raw Woofer