DIY subwoofer I built. 12-in Dayton UM subwoofer and a 500 watt bash amplifier. Flat port design tuned to 20 hz. : r/hometheater
Order the Dayton Audio SD315A-88 woofer - SoundImports
Dayton Audio 12" Reference Series HO Subwoofer and Cabinet Bundle
Parts Express 12" Wireless Subwoofer Package with Dayton Audio SUB-1200 - Walmart.com
Dayton Audio RS1202A 1000 Watt Dual 12" Subwoofer System Assembled. Built like a bunker...sounds like the ultimate sub… | Dayton audio, Subwoofer speaker, Subwoofer
Order the Dayton Audio RSS315HO-44 woofer - SoundImports