Resilient Sounds Team 18" D1 - 5000w RMS Subwoofer
Amazon.com: JBL Club WS1000 10" Shallow Mount subwoofer w/SSI (Selectable Smart Impedance) Switch from 2 to 4 ohm Bundled with Alphasonik Earbuds : Electronics
5000W Portable Bluetooth Speaker Sub Woofer Heavy Bass Sound System & Mic - Walmart.com
JBL SRX828SP 2000-Watt Dual 18" Active Subwoofer | Reverb
15 Inch 4 Ohm 65mm Core Subwoofer Low Frequency Outdoor Broadcast Stage Ktv Professional Speaker Diameter 383mm Magnet 170mm - Speakers - AliExpress
JBL PRODUCTS Stage800BA | Cartronics
USED JBL JRX-118SP Powered 18" Subwoofer — Dirt Cheep
Amazon.com: JBL BassPro SL2 Active Underseat Car Subwoofer with Built in Amplifier - Under Seat 8'' Subwoofer Car with 125 Watt Power Amplifier : Electronics
15" Professional Performance Super Power 5000W Subwoofer 220mm Magnetic 100mm Core Coil for KTV Stage Speaker