Amazon.com: Sound Town 15" 450W Raw Woofer Speaker with 4" Voice Coil, 100 oz Magnet, Replacement Woofer for PA/DJ Subwoofer, 8-ohm (STLF-1504-8) : Musical Instruments
AudioPipe Sub-BDC4-15D2 15-Inch Sub Dual 2 Ohm 1400 W RMS Car Audio (2 Pack) - Walmart.com
ZX82A HIFONICS Active subwoofer 8 Inch, 400 W, Low 50-150 (15/18dB), Subsonic 15 Hz Hz ▷ AUTODOC price and review