Amazon.com: Planet Audio Px12 Axis Series Single Voice-Coil Flat Subwoofer (12", 1,000 Watts) (PX12) : Electronics
Focal Sub 10 Slim Flat Woofer Chassis 25 CM (10”) Subwoofer 460 W, SUB10SLIM | eBay
Amazon.com: DS18 SB12A 12 Inches Shallow Subwoofer Enclosure with Built in Amplifier – Car Audio All in One Amplifier and Subwoofer Bass Package 700 Watts Power – Great Stealth Car Subwoofer in
Kicker 48TRTP82 Sealed downward-firing enclosure with CompRT® 8" shallow-mount subwoofer and passive radiator at Crutchfield
Kenwood KFC-XW1000F 10" Shallow Subwoofer, 1000W Max Power - Creative Audio