Hertz SX380D SPL Show 15" Subwoofer – Sound Obsession
169) Soundstream RBW-15 Rubicon Series Subwoofer - RBW15
H YANKA 15 Inch Subwoofer - 15 Inch Paper Cone Subwoofer Car Audio, Black Steel Basket, Dual Voice Coil 4 Ohm Impedance 15 subwoofer, 2000W MAX Power 15 inch Competition Subwoofer : Amazon.com.au: Electronics