Proficient Home Speakers FDS12 (Subwoofers 12") from Merlins TV
Amazon.com: Polk Audio HTS 12 Powered Subwoofer with Power Port Technology | 12” Woofer, up to 400W Amp | For the Ultimate Home Theater Experience | Modern Sub that Fits in any
Polk Audio - Monitor XT12 12" 100W Class A/B Amplifier Subwoofer - Midnight Black Home Audio Speakers - Newegg.com